Messer Group GmbH

Germany

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IPC Class
F25B 19/00 - Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour 6
C01B 32/55 - Solidifying 5
C21D 6/04 - Hardening by cooling below 0° C 5
F25D 3/12 - Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow 5
C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor 4
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NICE Class
09 - Scientific and electric apparatus and instruments 2
11 - Environmental control apparatus 2
01 - Chemical and biological materials for industrial, scientific and agricultural use 1
05 - Pharmaceutical, veterinary and sanitary products 1
10 - Medical apparatus and instruments 1
Status
Pending 7
Registered / In Force 53

1.

DEVICE AND METHOD FOR ADDITIVE MANUFACTURING UNDER PROTECTIVE GAS

      
Application Number 18002317
Status Pending
Filing Date 2021-06-02
First Publication Date 2023-08-03
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Kampffmeyer, Dirk
  • Hildebrandt, Bernd

Abstract

The invention relates to a device for the additive manufacturing of workpieces under protective gas, which device is provided with a manufacturing chamber designed as a pressure chamber, said manufacturing chamber being fluidically connected to a pressure container via a gas extraction line, which is provided with a vacuum pump, and via a gas return line. After the manufacturing of a first workpiece, the protective gas present in the manufacturing chamber is evacuated, temporarily stored in the pressure container and, prior to the manufacturing of a second workpiece, is introduced into the manufacturing chamber.

IPC Classes  ?

  • B22F 12/70 - Gas flow means
  • B29C 64/371 - Conditioning of environment using an environment other than air, e.g. inert gas
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor

2.

DEVICE AND METHOD FOR PRODUCING AND TRANSPORTING DRY ICE PELLETS

      
Application Number 17770342
Status Pending
Filing Date 2020-10-22
First Publication Date 2022-12-01
Owner MESSER GROUP GMBH (Germany)
Inventor Claeys, Jean-Claude

Abstract

A device for producing dry ice pellets comprises a pressing cylinder, into which an inlet opening for feeding liquid carbon dioxide leads and which is equipped with a die, which has one or more openings, and with a piston, which is longitudinally movable in the pressing cylinder. Liquid carbon dioxide is fed to the pressing cylinder, is expanded at the inlet opening, is at least partially converted into carbon dioxide snow and is pressed against and through the die by the movement of the piston. The die is in the form of a cylindrical body that can be connected to the pressing cylinder and is equipped with feed-throughs, which are oriented parallel to a longitudinal axis of the die and are dimensioned in such a way that the length and the diameters of the feed-throughs correspond to the length and the diameters of the dry ice pellets to be produced.

IPC Classes  ?

  • B01J 2/20 - Processes or devices for granulating materials, in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
  • C01B 32/55 - Solidifying

3.

APPARATUS FOR TRANSMITTING ELECTRICAL ENERGY WITH A SUPERCONDUCTING CURRENT CARRIER

      
Application Number EP2021078850
Publication Number 2022/106131
Status In Force
Filing Date 2021-10-18
Publication Date 2022-05-27
Owner
  • MESSER GROUP GMBH (Germany)
  • VISION ELECTRIC SUPER CONDUCTORS GMBH (Germany)
Inventor
  • Herzog, Dr. Friedhelm
  • Kutz, Thomas
  • Reiser, Dr. Wolfgang
  • Huwer, Stefan

Abstract

Apparatus for transmitting electrical energy with a superconducting current carrier, in which the superconducting current carrier to be cooled is accommodated in a first cooling channel, which first cooling channel is connected by way of a coolant feed line to a supply device for a first cooling medium and is surrounded by at least one second cooling channel, for conducting through a second cooling medium, which is flow-connected to a coolant-discharge line for heated second cooling medium, wherein a supercooled, liquefied gas is used as the first cooling medium, is characterized according to the invention in that a liquefied gas is used as the second cooling medium and the second cooling channel is equipped with means for removing a gas phase occurring due to evaporation of the second cooling medium.

IPC Classes  ?

  • H01B 12/14 - Superconductive or hyperconductive conductors, cables or transmission lines characterised by the disposition of thermal insulation
  • H01B 12/16 - Superconductive or hyperconductive conductors, cables or transmission lines characterised by cooling

4.

DEVICE AND METHOD FOR PROCESSING PIECES OF MEAT USING DRY ICE PELLETS

      
Application Number EP2021078812
Publication Number 2022/084250
Status In Force
Filing Date 2021-10-18
Publication Date 2022-04-28
Owner MESSER GROUP GMBH (Germany)
Inventor Claeys, Jean-Claude

Abstract

The invention relates to a device for processing pieces of meat using dry ice pellets, comprising a conveying device for transporting pieces of meat along a transport path, means for the temporary fixing the pieces of meat in at least one plane, at least one injection device for injecting dry ice pellets into the piece of meat or into a plurality of pieces of meat and a positioning device for positioning the injection device(s) in the direction of the region to be processed in the fixed piece of meat or in the fixed pieces of meat during injection.

IPC Classes  ?

  • A22B 5/00 - Accessories for use during or after slaughtering
  • A22C 17/00 - Other devices for processing meat or bones
  • A23B 4/09 - Freezing; Subsequent thawing; Cooling with addition of chemicals before or during cooling with direct contact between the food and the chemical, e.g. liquid N2, at cryogenic temperature
  • A23B 4/32 - Apparatus for preserving using solids

5.

DEVICE AND METHOD FOR ADDITIVE MANUFACTURING UNDER PROTECTIVE GAS

      
Application Number EP2021064850
Publication Number 2022/002523
Status In Force
Filing Date 2021-06-02
Publication Date 2022-01-06
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Kampffmeyer, Dirk
  • Hildebrandt, Bernd

Abstract

The invention relates to a device for the additive manufacturing of workpieces under protective gas, which device is provided with a manufacturing chamber designed as a pressure chamber, said manufacturing chamber being fluidically connected to a pressure container via a gas extraction line, which is provided with a vacuum pump, and via a gas return line. After the manufacturing of a first workpiece, the protective gas present in the manufacturing chamber is evacuated, temporarily stored in the pressure container and, prior to the manufacturing of a second workpiece, is introduced into the manufacturing chamber.

IPC Classes  ?

  • B22F 10/20 - Direct sintering or melting
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/30 - Process control
  • B22F 10/32 - Process control of the atmosphere, e.g. composition or pressure in a building chamber
  • B22F 10/77 - Recycling of gas
  • B22F 12/00 - Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
  • B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
  • B29C 64/371 - Conditioning of environment using an environment other than air, e.g. inert gas
  • B33Y 10/00 - Processes of additive manufacturing
  • B33Y 30/00 - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - Details thereof or accessories therefor

6.

METHOD AND APPARATUS FOR ADDITIVE MANUFACTURING UNDER PROTECTIVE GAS

      
Application Number EP2021064789
Publication Number 2021/245134
Status In Force
Filing Date 2021-06-02
Publication Date 2021-12-09
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Hildebrandt, Bernd
  • Kampffmeyer, Dirk

Abstract

The invention relates to a method for additive manufacture of a workpiece under protective gas, wherein a workpiece is assembled from a sequence of workpiece contours, each of which is manufactured by selective sintering or melting of a powdery or wire-like material by applying an energy beam thereto, wherein a workpiece contour is manufactured under the effect of a protective gas consisting of carbon dioxide and an inert gas. According to the invention, the chemical composition of each workpiece contour is modified according to a specified program by variation of the composition of the protective gas. Heat treatment occurring after manufacture of the workpiece contour provides for defined mechanical and technological quality values of the workpiece contour. A workpiece having zones with defined mechanical and technological quality values is produced in this manner.

IPC Classes  ?

  • B23K 15/00 - Electron-beam welding or cutting
  • B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
  • B22F 10/00 - Additive manufacturing of workpieces or articles from metallic powder
  • B23K 26/12 - Working by laser beam, e.g. welding, cutting or boring in a special environment or atmosphere, e.g. in an enclosure
  • B23K 26/342 - Build-up welding
  • B23K 35/30 - Selection of soldering or welding materials proper with the principal constituent melting at less than 1550°C
  • B23K 35/38 - Selection of media, e.g. special atmospheres for surrounding the working area
  • B33Y 10/00 - Processes of additive manufacturing
  • B23K 28/00 - Welding or cutting not covered by groups

7.

METHOD AND DEVICE FOR CRYOGENIC COOLING OF A CONSUMER

      
Application Number EP2021064834
Publication Number 2021/245157
Status In Force
Filing Date 2021-06-02
Publication Date 2021-12-09
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Schlotmann, Alexander
  • Herzog, Friedhelm
  • Kutz, Thomas

Abstract

In a method for cooling a consumer by means of a cryogenic cooling medium, thermal contact of the cooling medium with the consumer is established in a cryostat. The cooling medium in the cryostat is brought to a low temperature by sucking gaseous cooling medium away from the cryostat using a vacuum pump. The cooling medium conveyed by the vacuum pump is reliquefied in a condenser and is expanded at a throttle element to the pressure prevailing in the cryostat. In accordance with the invention, the cooling medium pumped out of the cryostat is brought into thermal contact with the cooling medium in the condenser upstream of the vacuum pump. Efficiency of the cooling process is significantly improved in this way.

IPC Classes  ?

  • F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point

8.

METHOD FOR ADDITIVE MANUFACTURING UNDER PROTECTIVE GAS USING A LASER BEAM

      
Application Number EP2021056884
Publication Number 2021/228455
Status In Force
Filing Date 2021-03-17
Publication Date 2021-11-18
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Rockser, Mario
  • Wankum, Achim
  • Kampffmeyer, Dirk
  • Hildebrandt, Bernd

Abstract

The invention relates to a method for the additive manufacturing of workpieces under protective gas using a laser beam, characterised in that the protective gas used is carbon dioxide with a purity of at least 99.99% by volume.

IPC Classes  ?

9.

DEVICE FOR GENERATING AND STORING CARBON DIOXIDE SNOW

      
Application Number EP2021056874
Publication Number 2021/204509
Status In Force
Filing Date 2021-03-17
Publication Date 2021-10-14
Owner
  • MESSER FRANCE S.A.S. (France)
  • MESSER GROUP GMBH (Germany)
Inventor
  • Tebib, Emir
  • Beil, Denis
  • Schirmacher, Johanna

Abstract

The invention relates to a device for generating and storing carbon dioxide snow, comprising a container into which an expansion nozzle connected to a supply line for liquid carbon dioxide and a gas extraction line open, a removal device for removing carbon dioxide snow out of the container, and a measuring device for detecting the fill level of the carbon dioxide snow in the container. According to the invention, the measuring device comprises a photoelectric sensor unit which is arranged at a vertical distance to the base of the container and which comprises a light-emitting transmitter and a light-sensitive receiver.

IPC Classes  ?

10.

METHOD AND PRODUCTION PLANT FOR PRODUCING NITRIC ACID

      
Application Number EP2021056873
Publication Number 2021/191031
Status In Force
Filing Date 2021-03-17
Publication Date 2021-09-30
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Rohovec, Joachim
  • Van Gellecom, Nina

Abstract

In a method for producing nitric acid, nitrogen oxides are first created in an ammonia combustion plant (2) and are cooled in a condenser (3), thereby producing a solution containing nitric acid. The solution containing nitric acid is then supplied to at least one absorption tower, (4, 5), in which the nitrogen oxides are brought into contact with water and oxygen, wherein the nitrogen-containing gas mixture reacts at least partially with the water and the oxygen, forming an aqueous solution containing nitric acid, which solution collects at the bottom of the absorption tower, (4, 5) and is then compressed and supplied back to the absorption tower (4, 5) via a line (12, 14, 21). To minimise the concentration of nitrogen oxides in the waste gas of such a plant and to increase the efficiency of the process, according to the invention ozone is fed into a connection line (12) which leads from the condenser (3) to a first absorption tower and which conducts the solution containing nitric acid.

IPC Classes  ?

11.

APPARATUS AND METHOD FOR GENERATING A TEMPERATURE-CONTROLLED COLD GAS STREAM

      
Application Number EP2021053253
Publication Number 2021/165123
Status In Force
Filing Date 2021-02-10
Publication Date 2021-08-26
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Powell, Steven
  • Talluto, Roberto

Abstract

An apparatus for generating a temperature-controlled cold gas stream, having a storage tank and an extraction line which is connected to the storage tank and which serves for the extraction of liquefied gas from the storage tank, and having an evaporator unit which is integrated in the extraction line and which is equipped with a heat exchanger surface for the indirect thermal contact of the liquefied gas with a heat carrier fluid, is characterized according to the invention in that a liquid line branches off from the extraction line downstream of the storage tank and upstream of the evaporator unit, which liquid line opens into the extraction line downstream of the evaporator unit at an introduction device, wherein the introduction device is equipped with a sensor for detecting the temperature in the extraction line and with a control valve which is operatively connected to the sensor and which serves for controlling the introduction of liquefied gas into the extraction line.

IPC Classes  ?

  • F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
  • F17D 3/12 - Arrangements for supervising or controlling working operations for injecting a composition into the line

12.

METHOD AND DEVICE FOR PURIFYING GAS FLOWS BY MEANS OF CONDENSATION

      
Application Number EP2020079812
Publication Number 2021/104767
Status In Force
Filing Date 2020-10-22
Publication Date 2021-06-03
Owner
  • MESSER GROUP GMBH (Germany)
  • MESSER TATRAGAS SPOL. S. R.O. (Slovakia)
Inventor
  • Herzog, Friedhelm
  • Petrovic, Juraj

Abstract

The invention relates to a method for purifying a gas flow by means of condensation, wherein a carrier gas flow loaded with at least one condensable substance is brought into indirect heat exchange with a coolant on a first heat exchange surface in a condenser and cooled to a temperature below the dew point of the at least one condensable substance, and the condensed substance is withdrawn from the condenser as a liquid condensate, and said method is characterized according to the invention in that the condensate is supplied to a second heat exchange surface and brought into indirect heat exchange with the carrier gas flow thereon.

IPC Classes  ?

  • B01D 53/00 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
  • F25J 3/06 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by partial condensation
  • F25J 3/08 - Separating gaseous impurities from gases or gaseous mixtures

13.

DEVICE AND METHOD FOR PRODUCING AND TRANSPORTING DRY ICE PELLETS

      
Document Number 03155583
Status Pending
Filing Date 2020-10-22
Open to Public Date 2021-04-29
Owner
  • MESSER GROUP GMBH (Germany)
  • SEB S.A. (France)
Inventor Claeys, Jean-Claude

Abstract

The invention relates to a device for producing dry ice pellets comprising a pressing cylinder, into which an inlet opening for feeding liquid carbon dioxide leads and which is equipped, at an end, with a die, which has one or more openings, and with a piston, which is longitudinally movably accommodated in the pressing cylinder. During use, liquid carbon dioxide is fed to the pressing cylinder. Said carbon dioxide is expanded at the inlet opening, is at least partially converted into carbon dioxide snow and is pressed against and through the die by the movement of the piston. According to the invention, the die is in the form of a cylindrical body that can be connected to the pressing cylinder and is equipped with feed-throughs, which are oriented parallel to a longitudinal axis of the die and are dimensioned in such a way that the length and the diameters of the feed-throughs correspond to the length and the diameters of the dry ice pellets to be produced.

IPC Classes  ?

  • B30B 11/26 - Extrusion presses; Dies therefor using press rams
  • C01B 32/55 - Solidifying
  • B24C 1/00 - Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods

14.

DEVICE FOR INTRODUCING DRY ICE PELLETS INTO FRESH MEAT

      
Document Number 03158756
Status Pending
Filing Date 2020-10-22
Open to Public Date 2021-04-29
Owner
  • MESSER GROUP GMBH (Germany)
  • DAM TECH (Belgium)
Inventor
  • Mussly, David
  • Claeys, Jean-Claude

Abstract

The invention relates to an apparatus for introducing dry ice pellets into fresh meat, comprising a housing (2), in which at least one injection device (3, 4, 5, 6) for introducing dry ice pellets (27) is arranged, and guide channels (11a, 11b, 12a, 12b), which lead to a front face (15) of the housing, for axially movably guiding a penetration needle (8, 9), which is tapered at the distal end thereof, and a drive device for axially moving the penetration needle (8, 9). A loading unit (25) can be inserted between a rear portion (13) and a front portion (14) of the housing (2), which loading unit is provided with a number of feedthroughs (26a, 26b), which can be equipped with dry ice pellets (27) and which can be brought into a position in alignment with the guide channels (11a, 11b, 12a, 12b). During operation of the apparatus, penetration channels are first produced, by means of the penetration needles (8, 9), in a piece of meat to be cooled, into which penetration channels the dry ice pellets (27) are subsequently introduced from the feedthroughs (26a, 26b) of the loading unit, also using the penetration needles (8, 9). The feedthrough enables efficient introduction of dry ice pellets into a piece of meat.

IPC Classes  ?

  • A23B 4/32 - Apparatus for preserving using solids
  • A22B 5/00 - Accessories for use during or after slaughtering
  • A22C 17/00 - Other devices for processing meat or bones
  • A23B 4/09 - Freezing; Subsequent thawing; Cooling with addition of chemicals before or during cooling with direct contact between the food and the chemical, e.g. liquid N2, at cryogenic temperature

15.

APPARATUS FOR INTRODUCING DRY ICE PELLETS INTO FRESH MEAT

      
Application Number EP2020079795
Publication Number 2021/078883
Status In Force
Filing Date 2020-10-22
Publication Date 2021-04-29
Owner
  • MESSER GROUP GMBH (Germany)
  • DAM TECH BVDA (Belgium)
Inventor
  • Mussly, David
  • Claeys, Jean-Claude

Abstract

The invention relates to an apparatus for introducing dry ice pellets into fresh meat, comprising a housing (2), in which at least one injection device (3, 4, 5, 6) for introducing dry ice pellets (27) is arranged, and guide channels (11a, 11b, 12a, 12b), which lead to a front face (15) of the housing, for axially movably guiding a penetration needle (8, 9), which is tapered at the distal end thereof, and a drive device for axially moving the penetration needle (8, 9). A loading unit (25) can be inserted between a rear portion (13) and a front portion (14) of the housing (2), which loading unit is provided with a number of feedthroughs (26a, 26b), which can be equipped with dry ice pellets (27) and which can be brought into a position in alignment with the guide channels (11a, 11b, 12a, 12b). During operation of the apparatus, penetration channels are first produced, by means of the penetration needles (8, 9), in a piece of meat to be cooled, into which penetration channels the dry ice pellets (27) are subsequently introduced from the feedthroughs (26a, 26b) of the loading unit, also using the penetration needles (8, 9). The feedthrough enables efficient introduction of dry ice pellets into a piece of meat.

IPC Classes  ?

  • A22B 5/00 - Accessories for use during or after slaughtering
  • A22C 17/00 - Other devices for processing meat or bones
  • A23B 4/09 - Freezing; Subsequent thawing; Cooling with addition of chemicals before or during cooling with direct contact between the food and the chemical, e.g. liquid N2, at cryogenic temperature

16.

DEVICE AND METHOD FOR PRODUCING AND TRANSPORTING DRY ICE PELLETS

      
Application Number EP2020079807
Publication Number 2021/078891
Status In Force
Filing Date 2020-10-22
Publication Date 2021-04-29
Owner MESSER GROUP GMBH (Germany)
Inventor Claeys, Jean-Claude

Abstract

The invention relates to a device for producing dry ice pellets comprising a pressing cylinder, into which an inlet opening for feeding liquid carbon dioxide leads and which is equipped, at an end, with a die, which has one or more openings, and with a piston, which is longitudinally movably accommodated in the pressing cylinder. During use, liquid carbon dioxide is fed to the pressing cylinder. Said carbon dioxide is expanded at the inlet opening, is at least partially converted into carbon dioxide snow and is pressed against and through the die by the movement of the piston. According to the invention, the die is in the form of a cylindrical body that can be connected to the pressing cylinder and is equipped with feed-throughs, which are oriented parallel to a longitudinal axis of the die and are dimensioned in such a way that the length and the diameters of the feed-throughs correspond to the length and the diameters of the dry ice pellets to be produced.

IPC Classes  ?

  • C01B 32/55 - Solidifying
  • B30B 11/26 - Extrusion presses; Dies therefor using press rams
  • B24C 1/00 - Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods

17.

DEVICE FOR METERING CARBON DIOXIDE SNOW

      
Document Number 03151220
Status Pending
Filing Date 2020-07-16
Open to Public Date 2021-02-25
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Tebib, Emir
  • Schirmacher, Johanna

Abstract

In order to meter carbon dioxide snow, a storage container has an output unit, which comprises: - an output opening, which is arranged laterally in the bottom region of the storage container; and - a horizontally movable sliding element, which cooperates with the output opening. In order to fill the storage container with carbon dioxide snow, at least two snow horns are provided on the storage container, in which snow horns liquid carbon dioxide is converted into a mixture of carbon dioxide snow and carbon dioxide gas. The mouth openings of the snow horns point toward each other at least in one direction component so that the material flows exiting therefrom are directed at least partially toward each other. This facilitates the separation of snow and gas and increases the efficiency of the device.

IPC Classes  ?

18.

DEVICE FOR METERING CARBON DIOXIDE SNOW

      
Application Number EP2020070163
Publication Number 2021/032377
Status In Force
Filing Date 2020-07-16
Publication Date 2021-02-25
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Tebib, Emir
  • Schirmacher, Johanna

Abstract

In order to meter carbon dioxide snow, a storage container has an output unit, which comprises: - an output opening, which is arranged laterally in the bottom region of the storage container; and - a horizontally movable sliding element, which cooperates with the output opening. In order to fill the storage container with carbon dioxide snow, at least two snow horns are provided on the storage container, in which snow horns liquid carbon dioxide is converted into a mixture of carbon dioxide snow and carbon dioxide gas. The mouth openings of the snow horns point toward each other at least in one direction component so that the material flows exiting therefrom are directed at least partially toward each other. This facilitates the separation of snow and gas and increases the efficiency of the device.

IPC Classes  ?

  • C01B 32/55 - Solidifying
  • F25D 3/12 - Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow

19.

PRODUCT TRANSPORT CONTAINER WITH A DESIRED TEMPERATURE RANGE

      
Application Number FR2019050692
Publication Number 2020/193872
Status In Force
Filing Date 2019-03-26
Publication Date 2020-10-01
Owner
  • OLIVO (France)
  • MESSER GROUP GMBH (Germany)
Inventor
  • Olivo Danse, Hélène Françoise
  • Claeys, Jean-Claude
  • Tebib, Emir
  • Mroch, Johanna

Abstract

The present invention relates to the transport of products at a desired maintenance temperature range, comprising: - a case (2) which is made of insulating material and which delimits a compartment which is open at the top, has a volume less than 150 litres and is capable of containing the products, the case (2) having a predetermined calorific dissipation power; - a cover (4) which is made of insulating material and can be adapted to the case (2) in order to close the compartment; - a diffusing intermediate wall (5) which is positioned between the case (2) and the cover (4) in order to delimit, with the cover (4), a chamber with a surface (7) for receiving at least one refrigerant charge (6) which emits a calorific power, the cover (4) and the intermediate wall (5) comprising mutually complementary locking/unlocking means (9). The invention is characterised in that the calorific energy emitted by the refrigerant charge (6) and the thermal diffusion coefficient of the intermediate wall (5) are adjusted so that, at predetermined transport and maintenance temperatures and for a desired time after receipt of the refrigerant charge (6) and exposure of the container (1) to the transport temperature, the calorific power diffused by the intermediate wall (5) to the compartment is equal to or at a maximum 20% greater than the calorific power dissipated by the case (2).

IPC Classes  ?

  • F25D 3/14 - Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow portable, i.e. adapted to be carried personally

20.

METHOD AND DEVICE FOR SEPARATING A GAS MIXTURE CONTAINING DIBORANE AND HYDROGEN

      
Application Number EP2020053702
Publication Number 2020/177998
Status In Force
Filing Date 2020-02-13
Publication Date 2020-09-10
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Herzog, Friedhelm
  • Barbe, Joachim

Abstract

In order to separate diborane from a gas mixture containing diborane and hydrogen, the gas mixture is normally cooled in a storage tank using liquid nitrogen, wherein the diborane freezes out. In order to enable an extensively continuous separation of the diborane from the gas mixture, according to the invention, the gas mixture is brought into thermal contact with a liquefied gas in a heat exchanger, which liquefied gas is held at a pressure such that the diborane is liquefied by the thermal contact with the coolant, and the liquefied diborane is then discharged from the first heat exchanger and supplied to a storage tank. In a downstream, second heat exchanger, the diborane remaining in the gas mixture can then be caused to freeze out.

IPC Classes  ?

  • B01D 53/00 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols

21.

COOLING SYSTEM FOR STORING AND COOLING PRODUCTS DURING TRANSPORT ON A REFRIGERATED TRANSPORT VEHICLE

      
Application Number EP2019085680
Publication Number 2020/156736
Status In Force
Filing Date 2019-12-17
Publication Date 2020-08-06
Owner
  • MESSER GROUP GMBH (Germany)
  • FRAPPA (France)
Inventor
  • Tebib, Emir
  • Beil, Denis
  • Gockel, Frank
  • Antoye, Rémi
  • Blauvac, Germain

Abstract

A cooling system using carbon dioxide as a coolant comprises a cooling chamber (3) for storing products to be cooled during transport and a cooling unit (10) for cooling the atmosphere in the cooling chamber. The Cooling chamber and the cooling unit are mounted on or integrated in a cooling vehicle (2) like a truck, a railway wagon or a ship. The cooling unit comprises a carbon dioxide storage compartment (11) and at least one cooling channel (12, 30, 31) through which air is led from and to the cooling chamber. The carbon dioxide storage compartment and the cooling channel are separated from each other by a thermal well-conducting but gas-tight plate (13) serving as a heat exchanger between the carbon dioxide in the carbon dioxide storage compartment and the air in the cooling channel.

IPC Classes  ?

  • F25D 11/00 - Self-contained movable devices associated with refrigerating machinery, e.g. domestic refrigerators
  • F25D 3/12 - Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
  • F25D 29/00 - Arrangement or mounting of control or safety devices
  • F25D 17/06 - Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating gas, e.g. by natural convection by forced circulation

22.

METHOD FOR FINISHING A WORKPIECE MADE BY ADDITIVE MANUFACTURING

      
Application Number EP2019084460
Publication Number 2020/126684
Status In Force
Filing Date 2019-12-10
Publication Date 2020-06-25
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Böckler, Thomas
  • Dusil, Matthias
  • Hildebrandt, Bernd
  • Kampffmeyer, Dirk
  • Selders, Georg

Abstract

According to the invention, a metal workpiece made by additive manufacturing is subjected, following the additive manufacturing process, to a cold treatment in which the workpiece is cooled to a lower target temperature of less than minus 30°C in a cooling phase and is then heated up to an upper target temperature in a heating phase. The cold treatment significantly improves the properties of the workpiece in respect of the mechanical quality thereof.

IPC Classes  ?

  • B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
  • B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
  • B33Y 40/20 - Post-treatment, e.g. curing, coating or polishing
  • C21D 6/04 - Hardening by cooling below 0° C
  • C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
  • B22F 3/24 - After-treatment of workpieces or articles

23.

DEVICE FOR CHARGING A REFRIGERANT-RECEIVING COMPARTMENT OF A COOLING CONTAINER WITH DRY ICE

      
Application Number EP2019084325
Publication Number 2020/120433
Status In Force
Filing Date 2019-12-10
Publication Date 2020-06-18
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Schirmacher, Johanna
  • Tebib, Emir
  • Claeys, Jean-Claude

Abstract

For charging a refrigerant-receiving compartment of a cooling container with dry ice, a reservoir vessel has a dispensing opening and a dispensing unit which cooperates therewith and by means of which dry ice blocks stored in stacks in a magazine of the reservoir vessel are ejected one after the other from the reservoir vessel and are respectively inserted into a refrigerant-receiving compartment of a respectively provided cooling container. This makes it possible to provide cooling containers in rapid succession with a precisely metered quantity of dry ice as refrigerant.

IPC Classes  ?

  • F25C 5/00 - Working or handling ice
  • F25C 5/20 - Distributing ice
  • F25D 3/12 - Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
  • B65G 59/06 - De-stacking from the bottom of the stack

24.

METHOD FOR IMPROVED CURRENT CONTACTING WHEN WELDING USING A CURRENT-CARRYING WIRE ELECTRODE

      
Document Number 03114642
Status Pending
Filing Date 2019-10-01
Open to Public Date 2020-04-09
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Bockler, Thomas
  • Hildebrandt, Bernd
  • Selders, Georg
  • Rockser, Mario
  • Kampffmeyer, Dirk

Abstract

When welding with a consumable wire electrode, current contacting occurs when the electrode wire passes by a readily electrically conductive contact element. In order to improve the current contacting and reduce the wear of the contact element in particular, the invention proposes subjecting contact elements to a cold treatment prior to using same. The cold treatment has a cooling phase during which the temperature of the contact element is reduced to a lower target temperature, a subsequent holding phase in which the contact element is substantially held at the target temperature, and a final heating phase, in which the contact element is brought to an upper target temperature. The use of contact elements treated using the method according to the invention leads to a substantial increase of the wear resistance compared to untreated contact elements.

IPC Classes  ?

  • B23K 9/12 - Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
  • C21D 1/18 - Hardening; Quenching with or without subsequent tempering
  • C21D 6/04 - Hardening by cooling below 0° C
  • C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor

25.

METHOD FOR COLD TREATING WIRE ELECTRODES

      
Application Number EP2019076297
Publication Number 2020/070025
Status In Force
Filing Date 2019-09-27
Publication Date 2020-04-09
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Kampffmeyer, Dr. Dirk
  • Böckler, Thomas
  • Selders, Georg
  • Hildebrandt, Dr. Bernd
  • Rockser, Mario

Abstract

The invention relates to a method for cold treating wire electrodes, having a cooling phase during which the temperature of the workpiece is reduced to a lower target temperature, a subsequent holding phase in which the workpiece is substantially held at the target temperature, and a final heating phase, in which the workpiece is brought to an upper target temperature. The use of wire electrodes treated using the method according to the invention leads to substantial improvements in the welding result compared to untreated wire electrodes, in particular a reduction of a welding spatter tendency.

IPC Classes  ?

  • B23K 35/40 - Making wire or rods for soldering or welding
  • C21D 6/04 - Hardening by cooling below 0° C
  • C21D 9/52 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for strips
  • C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor

26.

METHOD FOR COLD TREATING ROD ELECTRODES

      
Application Number EP2019076614
Publication Number 2020/070138
Status In Force
Filing Date 2019-10-01
Publication Date 2020-04-09
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Böckler, Thomas
  • Hildebrandt, Bernd
  • Kampffmeyer, Dirk
  • Rockser, Mario
  • Selders, Georg

Abstract

The invention relates to a method for cold treating rod electrodes, having a cooling phase during which the temperature of the electrode is reduced to a lower target temperature, a subsequent holding phase in which the electrode is substantially held at the target temperature, and a final heating phase, in which the electrode is brought to an upper target temperature. The use of rod electrodes treated using the method according to the invention leads to substantial improvements in the welding result compared to untreated rod electrodes, in particular a reduction of a welding spatter tendency, and allows a welder to more easily achieve a uniform welding seam with pronounced and uniform bead ripples.

IPC Classes  ?

  • B23K 9/173 - Arc welding or cutting making use of shielding gas and of consumable electrode
  • B23K 35/02 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
  • B23K 35/40 - Making wire or rods for soldering or welding
  • C21D 1/18 - Hardening; Quenching with or without subsequent tempering
  • C21D 6/04 - Hardening by cooling below 0° C
  • C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor

27.

METHOD FOR IMPROVED CURRENT CONTACTING WHEN WELDING USING A CURRENT-CARRYING WIRE ELECTRODE

      
Application Number EP2019076620
Publication Number 2020/070143
Status In Force
Filing Date 2019-10-01
Publication Date 2020-04-09
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Böckler, Thomas
  • Hildebrandt, Bernd
  • Selders, Georg
  • Rockser, Mario
  • Kampffmeyer, Dirk

Abstract

When welding with a consumable wire electrode, current contacting occurs when the electrode wire passes by a readily electrically conductive contact element. In order to improve the current contacting and reduce the wear of the contact element in particular, the invention proposes subjecting contact elements to a cold treatment prior to using same. The cold treatment has a cooling phase during which the temperature of the contact element is reduced to a lower target temperature, a subsequent holding phase in which the contact element is substantially held at the target temperature, and a final heating phase, in which the contact element is brought to an upper target temperature. The use of contact elements treated using the method according to the invention leads to a substantial increase of the wear resistance compared to untreated contact elements.

IPC Classes  ?

  • B23K 9/12 - Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
  • C21D 1/18 - Hardening; Quenching with or without subsequent tempering
  • C21D 6/04 - Hardening by cooling below 0° C
  • C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor

28.

DEVICE FOR COOLING A SUPERCONDUCTING ELEMENT

      
Application Number EP2019065962
Publication Number 2020/043340
Status In Force
Filing Date 2019-06-18
Publication Date 2020-03-05
Owner
  • MESSER GROUP GMBH (Germany)
  • MESSER INDUSTRIEGASE GMBH (Germany)
Inventor
  • Herzog, Friedhelm
  • Kutz, Thomas

Abstract

The invention relates to a device for cooling a superconducting element (2), which device comprises a cryostat (3) that is designed as a closed pressure vessel, is thermally connected to the superconducting element and is fluidically connected to a reservoir (4) for a cryogenic cooling medium by means of a liquid balancing line (8, 11). A heat exchanger (16) is provided in the cryostat or is thermally connected to the cyrostat at a heat exchanger surface (14), which heat exchanger is fluidically connected to the reservoir by means of a supply line equipped with an expansion valve (17) and in which heat exchanger there is a lower pressure than in the surrounding cryostat. In this way, the cooling medium in thermal contact with the superconducting element is subcooled; in the event of a sudden pressure increase in the cryostat, for example because of quenching of the superconductor, the reservoir acts as an expansion vessel.

IPC Classes  ?

  • F25D 3/10 - Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
  • F25B 19/00 - Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour
  • H01F 6/04 - Cooling

29.

METHOD FOR RECYCLING ARGON

      
Application Number EP2019065693
Publication Number 2020/025214
Status In Force
Filing Date 2019-06-14
Publication Date 2020-02-06
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Herzog, Friedhelm
  • Schlotmann, Alexander

Abstract

The invention relates to a method for recycling argon from an industrial process, which is characterized in that the gaseous argon is compressed after the use thereof in the industrial process, is fed to a main heat exchanger and is cooled there in contact with a first cooling medium, the compressed and cooled argon is fed to a rectification column or another cryogenic separating device and is liquefied there by direct heat exchange with a second cooling medium and is freed of low-boiling substances by rectification, and the liquefied argon is drawn from the bottom of the rectification column and, after use as the first cooling medium in the main heat exchanger, is fed back into the industrial process, the raw argon being brought into direct or indirect thermal contact with cryogenically liquefied pure argon in the main heat exchanger and/or the rectification column. The product argon that results is highly pure and can be fed back to the industrial process.

IPC Classes  ?

  • F25J 3/00 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification

30.

METHOD AND DEVICE FOR COOLING A SUPERCONDUCTING CURRENT CARRIER

      
Application Number EP2018086290
Publication Number 2019/154552
Status In Force
Filing Date 2018-12-20
Publication Date 2019-08-15
Owner
  • MESSER GROUP GMBH (Germany)
  • MESSER INDUSTRIEGASE GMBH (Germany)
Inventor
  • Herzog, Friedhelm
  • Kutz, Thomas

Abstract

For the transmission of electrical current, determined superconducting current carriers are accommodated in a cryostat, in which they are cooled with an undercooled cryogenic cooling medium, e.g. liquid nitrogen. The current carrier is electrically connected at the ends thereof to two normally conducting current supply means. The cooling medium is undercooled from a storage container to a temperature below its boiling temperature and supplied to the cryostat via a cooling medium inlet, brought into thermal contact with the superconducting current carrier, and subsequently discharged via a cooling medium outlet of the cryostat. According to the invention, the cooling medium from the cryostat is to be used for cooling at least one of the normally conducting current supply means.

IPC Classes  ?

  • F25B 19/00 - Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour
  • F25B 25/00 - Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups
  • F25D 3/10 - Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
  • H02G 15/34 - Cable fittings for cryogenic cables

31.

DEVICE AND PROCESS FOR FILLING A MOBILE REFRIGERANT TANK WITH A CRYOGENIC REFRIGERANT

      
Application Number EP2018071282
Publication Number 2019/042714
Status In Force
Filing Date 2018-08-06
Publication Date 2019-03-07
Owner
  • MESSER GROUP GMBH (Germany)
  • MESSER FRANCE S.A.S. (France)
Inventor
  • Frère, Émilien
  • Gockel, Frank

Abstract

12211, whereby the liquefied refrigerant is present in the conditioning vessel in the supercooled state. Subsequently, the supercooled, liquefied refrigerant is supplied to the tank to be filled. By means of the device according to the invention and the process according to the invention, evaporation losses during the filling process can be substantially avoided.

IPC Classes  ?

  • F17C 5/02 - Methods or apparatus for filling pressure vessels with liquefied, solidified, or compressed gases for filling with liquefied gases
  • F17C 9/00 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure

32.

METHOD FOR MANUFACTURING METALLIC COMPONENTS BY MEANS OF GENERATIVE PRODUCTION

      
Application Number EP2017056841
Publication Number 2017/202520
Status In Force
Filing Date 2017-03-22
Publication Date 2017-11-30
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Hildebrandt, Bernd
  • Kampffmeyer, Dirk

Abstract

In a method for manufacturing metallic components by means of generative production, a layer of metal powder is selectively melted or sintered by being exposed to an energy beam in an evacuated radiation chamber. When the radiation chamber is subsequently flooded with a cooling gas, the melted or sintered part solidifies to form a solid contour. Instead of the previously common practice of using helium, which is expensive and not readily available, as the cooling gas, it is proposed according to the invention to use a gas that contains hydrogen. Hydrogen has a higher thermal conductivity than helium and does not impair the surface of the workpiece, or only to a negligible extent.

IPC Classes  ?

  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma

33.

COOLING GAS FOR THE MANUFACTURING OF METALLIC COMPONENTS BY MEANS OF GENERATIVE PRODUCTION

      
Document Number 03025379
Status Pending
Filing Date 2017-03-22
Open to Public Date 2017-11-30
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Hildebrandt, Bernd
  • Kampffmeyer, Dirk

Abstract

In a method for manufacturing metallic components by means of generative production, a layer of metal powder is selectively melted or sintered by being exposed to an energy beam in an evacuated radiation chamber. When the radiation chamber is subsequently flooded with a cooling gas, the melted or sintered part solidifies to form a solid contour. Instead of the previously common practice of using helium, which is expensive and not readily available, as the cooling gas, it is proposed according to the invention to use a gas that contains hydrogen. Hydrogen has a higher thermal conductivity than helium and does not impair the surface of the workpiece, or only to a negligible extent.

IPC Classes  ?

  • B22F 12/20 - Cooling means
  • B22F 10/28 - Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
  • B22F 10/32 - Process control of the atmosphere, e.g. composition or pressure in a building chamber
  • B22F 10/50 - Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
  • B22F 10/60 - Treatment of workpieces or articles after build-up
  • B22F 3/105 - Sintering only by using electric current, laser radiation or plasma

34.

METHOD FOR TREATING SURFACES BY MEANS OF A BLASTING MEDIUM CONSISTING OF DRY ICE PARTICLES

      
Application Number EP2016067585
Publication Number 2017/017034
Status In Force
Filing Date 2016-07-22
Publication Date 2017-02-02
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Böckler, Thomas
  • Herzog, Friedhelm
  • Donnerhack, Andreas
  • Powell, Steven

Abstract

Surfaces must be partially roughened before being painted and coated. This usually is done by blasting the surface with sand or glass particles. In this type of pre-treatment sand or other blasting medium accumulates and can contaminate the part to be cleaned. In particular in the food, automotive, and medical sectors, entrainment of blasting medium is undesirable. According to the invention, during the treatment of surfaces a blasting material is used which consists of solid carbon dioxide obtained by freezing of liquid carbon dioxide. In this way a residue-free sublimating blasting medium is attained. By comparison with dry ice particles which have been produced by compression of carbon dioxide snow, the blasting medium according to the invention has a significantly higher hardness and ensures a substantially greater mechanical abrasion of the treated surface.

IPC Classes  ?

  • B24C 1/00 - Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
  • B24C 1/06 - Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for producing matt surfaces, e.g. on plastic materials, on glass
  • B24C 3/32 - Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks

35.

METHOD AND DEVICE FOR THE REGULATED TRANSFER OF A GAS INTO A FLUID MEDIUM

      
Application Number EP2016056333
Publication Number 2016/150993
Status In Force
Filing Date 2016-03-23
Publication Date 2016-09-29
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Hermans, Monica
  • Vervalle, Kurt

Abstract

During the metering of liquid carbon dioxide or other liquefied gases into a fluid medium, there is the risk that the liquefied gas already partially evaporates in the feed line and the exact quantity of gas which is fed in per unit time can be determined only with difficulty as a result. According to the invention, a pressure loss is measured continuously at a flow obstacle (5) in the region of the transfer point of the gas into the line (2) which conducts the fluid medium, and is used as a regulating parameter for controlling a regulating valve (6) which is arranged in the feed line (3). As a result, the feed of liquefied gas can be set in a manner which is dependent on a change in the pressure loss and, as a result, errors which are caused by way of the partial evaporation of the liquefied gas in the feed line (3) can be compensated for during the metering of the gas.

IPC Classes  ?

  • C02F 1/66 - Treatment of water, waste water, or sewage pH adjustment
  • C02F 1/68 - Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
  • G05D 11/13 - Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
  • B01F 3/04 - Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids

36.

METHOD AND DEVICE FOR PRODUCING SUBCOOLED CARBON DIOXIDE SNOW

      
Application Number EP2015080047
Publication Number 2016/097018
Status In Force
Filing Date 2015-12-16
Publication Date 2016-06-23
Owner
  • MESSER GROUP GMBH (Germany)
  • MESSER FRANCE S.A.S. (France)
Inventor
  • Tebib, Emir
  • Gockel, Frank

Abstract

The invention relates to a method for producing subcooled carbon dioxide snow, wherein liquid carbon dioxide is introduced into an expansion chamber (5) at an expansion nozzle (2), in which expansion chamber the liquid carbon dioxide is expanded, a mixture of carbon dioxide gas and carbon dioxide snow thus being produced, and then the mixture is separated into a phase consisting predominantly of carbon dioxide snow and a phase consisting predominantly of carbon dioxide gas. Said method is characterized in that a vacuum is produced at least in the region of the expansion nozzle (2) by means of a flow in the expansion chamber (5) produced during the expansion of the liquid carbon dioxide, into which vacuum the liquid carbon dioxide is expanded. A finely powdered, subcooled carbon dioxide snow is thereby produced.

IPC Classes  ?

  • F25D 3/12 - Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
  • C01B 31/22 - Solidifying

37.

DEVICE FOR IMPROVING THE VACUUM IN THE HOUSING OF A MACHINE

      
Application Number EP2015072895
Publication Number 2016/055398
Status In Force
Filing Date 2015-10-05
Publication Date 2016-04-14
Owner
  • MESSER INDUSTRIEGASE GMBH (Germany)
  • MESSER GROUP GMBH (Germany)
Inventor
  • Kutz, Thomas
  • Herzog, Friedhelm

Abstract

The invention relates to a device for improving a vacuum in the housing of a machine, in particular a centrifugal-mass energy store, comprising a rotor, for example a shaft (4) having a centrifugal mass (3) arranged thereon, which rotor is supported on at least one superconducting bearing (5) in a contactless manner and is arranged in a vacuum container (2). In order to maintain the operating state of the superconducting bearing, the superconducting bearing (5) is thermally connected to a cold source (8) cooled by a cryogenic medium. According to the invention, the vacuum in the vacuum container (2) is improved by means of an adsorber (20) thermally connected to a cooling apparatus. The cooling of the adsorber (20) occurs preferably by means of evaporated cooling medium from the superconducting bearing (5).

IPC Classes  ?

  • F04B 37/08 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups for evacuating by thermal means by condensing or freezing, e.g. cryogenic pumps
  • F03G 7/08 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching, or like movements, e.g. from the vibrations of a machine
  • F16F 15/315 - Flywheels characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft
  • F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
  • B01D 53/04 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
  • H01F 6/04 - Cooling

38.

DEVICE FOR COOLING A CONSUMER WITH A SUPER-COOLED LIQUID IN A COOLING CIRCUIT

      
Application Number EP2014062881
Publication Number 2015/000708
Status In Force
Filing Date 2014-06-18
Publication Date 2015-01-08
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Herzog, Friedhelm
  • Kutz, Thomas

Abstract

According to the prior art, a super-cooled liquid medium, for example a super-cooled liquid nitrogen, is pumped through a sub-cooler and is thereby cooled by the same medium that evaporates in the vacuum. This super-cooled nitrogen is then used as a coolant for a consumer. If only a small amount of heat is emiited by the consumer to the nitrogen, the liquid medium can be guided in the circuit, in which the sub-cooler is arranged. For compensating volume fluctuations, such a circuit requires a compensation vessel which, however, is very expensive and can furthermore only be operated in the presence of a super-cooled medium when either a part of the medium is heated using external energy, or an inert gas which boils at very low temperatures has to be used as a pressure compensation medium. According to the invention, it is proposed that the supply container for the liquid medium is integrated into the cooling circuit and is used as a compensation vessel. As a result, the use of a separate compensation vessel can be dispensed with.

IPC Classes  ?

  • F17C 7/04 - Discharging liquefied gases with change of state, e.g. vaporisation
  • F25B 19/00 - Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour

39.

DEVICE FOR COOLING A CONSUMER WITH A SUPER-COOLED LIQUID IN A COOLING CIRCUIT

      
Document Number 02917035
Status In Force
Filing Date 2014-06-18
Open to Public Date 2015-01-08
Grant Date 2021-04-06
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Herzog, Friedhelm
  • Kutz, Thomas

Abstract

According to the prior art, a super-cooled liquid medium, for example a super-cooled liquid nitrogen, is pumped through a sub-cooler and is thereby cooled by the same medium that evaporates in the vacuum. This super-cooled nitrogen is then used as a coolant for a consumer. If only a small amount of heat is emiited by the consumer to the nitrogen, the liquid medium can be guided in the circuit, in which the sub-cooler is arranged. For compensating volume fluctuations, such a circuit requires a compensation vessel which, however, is very expensive and can furthermore only be operated in the presence of a super-cooled medium when either a part of the medium is heated using external energy, or an inert gas which boils at very low temperatures has to be used as a pressure compensation medium. According to the invention, it is proposed that the supply container for the liquid medium is integrated into the cooling circuit and is used as a compensation vessel. As a result, the use of a separate compensation vessel can be dispensed with.

IPC Classes  ?

  • F17C 7/04 - Discharging liquefied gases with change of state, e.g. vaporisation
  • F25B 19/00 - Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour

40.

PROCESS AND PRODUCTION PLANT FOR PREPARING NITRIC ACID

      
Application Number EP2014000333
Publication Number 2014/121938
Status In Force
Filing Date 2014-02-07
Publication Date 2014-08-14
Owner
  • MESSER GROUP GMBH (Germany)
  • Messer Austria GmbH (Austria)
Inventor
  • Bachleitner, Walter
  • Berger, Thomas
  • Rohovec, Joachim

Abstract

In a process for preparing nitric acid, nitrogen oxides are first generated in an ammonia combustion plant (2), and these are then supplied to at least one absorption tower (4, 5). In the absorption tower (4, 5), the nitrogen oxides are contacted in the water and oxygen, with at least partial reaction of the nitrogen-containing gas mixture with the water and the oxygen to form an aqueous nitric acid-containing solution which collects at the base of the absorption tower (4, 5) and is subsequently compressed and introduced via a riser line (12, 14, 21) back into the absorption tower (4, 5). In order to minimize the concentration of nitrogen oxides in the offgas from such a plant, it is proposed in accordance with the invention that oxygen be introduced in liquid form or gaseous form into a region of the riser line (12, 14, 21) that is lower in a geodetic sense. This promotes the dissolution of the oxygen and the reaction of the oxygen with likewise dissolved nitrogen oxides to give nitric acid.

IPC Classes  ?

  • C01B 21/26 - Preparation by catalytic oxidation of ammonia
  • C01B 21/40 - Preparation by absorption of oxides of nitrogen

41.

METHOD AND DEVICE FOR COOLING OBJECTS

      
Application Number EP2013066402
Publication Number 2014/026873
Status In Force
Filing Date 2013-08-05
Publication Date 2014-02-20
Owner
  • MESSER GROUP GMBH (Germany)
  • MESSER INDUSTRIEGASE GMBH (Germany)
Inventor
  • Herzog, Friedhelm
  • Kutz, Thomas

Abstract

The invention relates to a method for cooling objects, in which a cooling medium is supplied from a first storage container (3) via a first cooling medium line (5) to an object (2) to be cooled, is brought into thermal contact with the latter and is then discharged via a second cooling medium line (16), which is characterised according to the invention in that after thermal contact with the object (2) the cooling medium is supplied via the second cooling medium line (16) to a second storage container (17) and stored there until a predefined level is reached in the first or second storage container (3, 17). The cooling medium is then supplied from the second storage container (17) to the object (2) for the purpose of cooling and brought into thermal contact with the latter, and then fed back into the first storage container (3), whereupon it is available again for cooling the object. Because the cooling medium is conducted in alternating directions between the two storage containers (3, 17), the same flow paths can at least partially be used in both flow directions. The invention is in particular suited to cooling superconductive cables.

IPC Classes  ?

  • F25D 3/10 - Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
  • F25B 19/00 - Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour

42.

DEVICE AND METHOD FOR CHANGING THE TEMPERATURE OF OBJECTS

      
Application Number EP2013062212
Publication Number 2013/186287
Status In Force
Filing Date 2013-06-13
Publication Date 2013-12-19
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Herzog, Friedhelm
  • Böckler, Thomas
  • Hertrampf, Joachim

Abstract

According to the invention, in a device for controlling the temperature of an object by means of a heat-transfer medium conducted in a line network, the line network is connected to an inlet and an outlet of the object and comprises a pumping apparatus for pumping the heat-transfer medium, a heating apparatus and a cooling apparatus for heating and cooling the heat-transfer medium, and a first heat accumulator and a second heat accumulator, wherein the second heat accumulator is held at a lower operating temperature than the first heat accumulator during the operation of the device. During the operation of the device, the heat stored in the heat accumulators can be used in both the cooling and the heating of the object by appropriately switching the line network. At the same time, the heat (cold) retained during cooling (heating) can be temporarily stored in the corresponding heat accumulator and applied to a later use.

IPC Classes  ?

  • B29C 35/00 - Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor

43.

Gourmet

      
Application Number 1085131
Status Registered
Filing Date 2011-03-18
Registration Date 2011-03-18
Owner MESSER GROUP GmbH (Germany)
NICE Classes  ? 01 - Chemical and biological materials for industrial, scientific and agricultural use

Goods & Services

Chemicals used in industry, namely food gases, in particular oxygen, nitrogen, carbon dioxide, dinitrogen monoxide, sulphur dioxide, hydrogen, in gaseous, liquid or solid form, for use as additives or processing aids in the food industry, in particular for refrigerating, freezing, preserving and treating foodstuffs.

44.

METHOD AND DEVICE FOR TREATING ABRASIVE SLURRIES CONTAINING SI/SIC

      
Application Number EP2010067945
Publication Number 2011/064170
Status In Force
Filing Date 2010-11-22
Publication Date 2011-06-03
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Coenen, Wolfgang
  • Berger, Thomas
  • Gockel, Frank

Abstract

The invention relates to reclaiming silicon and/or silicon carbide from siliceous abrasive slurries, wherein the abrasive slurries are first subjected to a method for high-pressure extraction by means of liquid or supercritical carbon dioxide, wherein components comprising oil and polyethylene are dissolved in carbon dioxide. The resulting intermediate product containing Si/SiC and in powder form is subjected under vacuum or inert gas atmosphere to a separating process (16) for separating into a fraction comprising silicon carbide and a fraction comprising silicon. Said separating process (16) preferably consists of separating in a fine screen, a sieve, or a cyclone (16). In particular high-purity silicon can be reclaimed by means of the method according to the invention.

IPC Classes  ?

  • B28D 5/00 - Fine working of gems, jewels, crystals, e.g. of semiconductor material; Apparatus therefor

45.

METHOD AND DEVICE FOR PRODUCING SOLID CARBON DIOXIDE PARTICLES

      
Application Number EP2010063126
Publication Number 2011/029825
Status In Force
Filing Date 2010-09-07
Publication Date 2011-03-17
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Böckler, Thomas
  • Herzog, Friedhelm
  • Hertrampf, Joachim

Abstract

The invention relates to a method for producing solid carbon dioxide particles, wherein liquid carbon dioxide is brought into thermal contact with a coolant in a heat exchanger and is cooled to a temperature just above the solidification temperature thereof. The cooled liquid carbon dioxide is subsequently guided in a nozzle assembly cooled by contact with a coolant, in which it is cooled further by thermal contact with said nozzle assembly before it escapes from an opening of said assembly. Said thus produced cold-solidified carbon dioxide particles have a higher resistance than the conventionally produced CO2-particles.

IPC Classes  ?

46.

PROCESS AND APPARATUS FOR THE ELECTROLYSIS OF AN AQUEOUS SOLUTION OF HYDROGEN CHLORIDE OR ALKALI CHLORIDE IN AN ELECTROLYTIC CELL

      
Application Number EP2010003253
Publication Number 2010/139425
Status In Force
Filing Date 2010-05-28
Publication Date 2010-12-09
Owner
  • MESSER GROUP GMBH (Germany)
  • MESSER AUSTRIA GMBH (Austria)
  • BAYER MATERIAL SCIENCE AG (Germany)
Inventor
  • Bachleitner, Walter
  • Erdmann, Christoph
  • Rohovec, Joachim
  • Bulan, Andreas
  • Weis, Mathias

Abstract

In a process for chlorine-alkali electrolysis, use is made of an oxygen depletion cathode. The process is run with a high excess of oxygen. The oxygen needed for this is provided for a device of the gas separation, for example a VPSA plant or an air fractionation plant. The large quantities of oxygen produced lead to considerable costs of the process. According to the invention, the oxygen-rich atmosphere remaining after passing through the process is fed back into the device for gas separation as input gas. The device the gas separation is therefore operated with an oxygen-rich input gas and therefore produces a larger quantity of oxygen-rich gas, which in turn is fed to the oxygen depletion cathode. As a result of the circulation of the gas, the economy of the overall process is increased considerably.

IPC Classes  ?

  • C25B 1/26 - Chlorine; Compounds thereof
  • C25B 1/46 - Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
  • C25B 15/08 - Supplying or removing reactants or electrolytes; Regeneration of electrolytes

47.

PROTECTIVE GAS MIXTURE FOR ARC WELDING OF ALUMINUM AND ALLOYS THEREOF

      
Application Number EP2009054059
Publication Number 2009/127545
Status In Force
Filing Date 2009-04-06
Publication Date 2009-10-22
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Hildebrandt, Bernd
  • Wankum, Achim
  • Wolters, Michael

Abstract

The protective gas according to the invention for MIG/WIG welding of aluminum comprises a quaternary mixture of argon, helium, nitrogen and dinitrogen oxide, wherein the fraction of dinitrogen oxide is up to 70 vpm, preferably 50 to 70 vpm and wherein the nitrogen fraction is between 250 and 1000 vpm, but increases within these limits as the helium fraction increases. A good welding result is accomplished through the gas mixture according to the invention and the situation with regard to environmental and work safety is substantially improved.

IPC Classes  ?

  • B23K 35/38 - Selection of media, e.g. special atmospheres for surrounding the working area
  • B23K 9/16 - Arc welding or cutting making use of shielding gas
  • B23K 103/10 - Aluminium or alloys thereof

48.

APPARATUS AND METHOD FOR REMOVING GAS FROM A CONTAINER

      
Application Number EP2009052260
Publication Number 2009/109505
Status In Force
Filing Date 2009-02-26
Publication Date 2009-09-11
Owner MESSER GROUP GMBH (Germany)
Inventor Grohmann, Paul

Abstract

The invention relates to a method and an apparatus for removing gas from a container in which the gas is stored in the liquid phase. For the removal of the gas, the most commonly used methods today include air vaporizers, wherein the danger of icing exists, however. According to the invention, the gas in the fluid state comes to an evaporation heat exchanger in which the gas is vaporized with a heat exchange medium. Also, the gas, which is at least partially vaporized in the evaporation heat exchanger is used to evaporate the fluid gas after further heating in a second heat exchanger or a heating device. The fluidized gas thus no longer comes into thermal contact, or only partially so, with ambient air. The risk of icing of the evaporation heat exchanger is thus significantly reduced.

IPC Classes  ?

  • F25B 19/00 - Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour

49.

WELDING TORCH FOR GAS-SHIELDED WELDING

      
Application Number EP2007062254
Publication Number 2008/064995
Status In Force
Filing Date 2007-11-13
Publication Date 2008-06-05
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Hildebrandt, Bernd
  • Wankum, Achim

Abstract

The feeding of shielding gas to the torch in MIG, MAG and TIG welding takes place by means of a separate supply line, the control of the stream of shielding gas taking place by means of a solenoid valve. This solenoid valve is generally in the so-called wire feed box. Between the wire feed box and the nozzle assembly of the torch there is generally a gas supply line a few metres long, in which foreign matter such as air or moisture accumulates during breaks in work and impairs the welding result when materials that are particularly sensitive to gas are used, in particular aluminium or aluminium alloys. The invention proposes a novel welding torch for gas-shielded welding, in which a shielding gas line (19) with a built-in shut-off valve (20, 35) is arranged in the nozzle assembly (5, 30) or in the torch barrel (4). The shut-off valve is preferably a nonreturn valve or a pressure-maintaining valve, with which a predetermined positive pressure of shielding gas with respect to the surrounding atmosphere is ensured in the shielding gas supply line. The flow shut-off device directly ahead of the gas outlet on the nozzle assembly reliably avoids the concentration of foreign matter inside the shielding gas supply line.

IPC Classes  ?

  • B23K 9/16 - Arc welding or cutting making use of shielding gas
  • B23K 9/173 - Arc welding or cutting making use of shielding gas and of consumable electrode
  • B23K 9/29 - Supporting devices adapted for making use of shielding means

50.

METHOD AND DEVICE FOR THE PRODUCTION OF CHILLED FRESH CONCRETE

      
Application Number EP2007060251
Publication Number 2008/040674
Status In Force
Filing Date 2007-09-27
Publication Date 2008-04-10
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Tauchmann, Jens
  • Hatz, Gottfried
  • Dietrich, Oliver

Abstract

A necessary part of the production of fresh concrete is to cool the cement or other mixing material mixed with the fresh concrete. According to a known method, said cooling is accomplished, for example, by feeding liquid nitrogen through a feed line to the pneumatic cement feed. The liquid nitrogen evaporates immediately upon contact with the cement. The associated increase in pressure leads to a short-term break in the conveyance of cement. As a result, periodic blow-off of dust occurs through the exhaust unit of the silo, which leads to placing a burden on workers and the environment. According to the invention, it is suggested to arrange a second feed line, parallel to the existing feed line between the supply silo and scale or mixing unit, wherein at least part of the flow of each mixing material is diverted and fed through a cooling unit. In the cooling unit, the mixing material contacts a cooling material which is removed from the cooling unit at the end of the cooling process. For the cooling process, a cryogenic cooling material, for example nitrogen or carbon dioxide, is preferably used. The cooling unit is preferably a fluidized screw cooler or a fluidized bed reactor. The invention allows an exact dosing and temperature target for the cooled mixing material.

IPC Classes  ?

  • B28C 7/00 - Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
  • C04B 40/06 - Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers

51.

METHOD AND DEVICE FOR OBTAINING INERT GAS

      
Application Number EP2007057574
Publication Number 2008/017583
Status In Force
Filing Date 2007-07-23
Publication Date 2008-02-14
Owner MESSER GROUP GmbH (Germany)
Inventor
  • Herzog, Friedhelm
  • Rohovec, Joachim

Abstract

Obtaining inert gas by means of decomposition of air involves great efforts and low yields due to the low inert gas content of air. According to the invention the production of inert gas from a gas mixture is improved in that a process step for the enriching of the gas flow intended for decomposition, the gas flow having a partial gas flow containing inert gas, is introduced to the decomposition of the gas. The partial gas flow can be, for example, a process gas rich in inert gas, or a gas that has been charged with inert gas during the course of a process. By means of the invention the inert gas content is increased in a gas flow supplied to an air decomposition system, thus improving the yield of inert gases during air decomposition.

IPC Classes  ?

  • F01K 23/06 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
  • F25J 3/02 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
  • F25J 3/04 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air

52.

METHOD AND DEVICE FOR PRETREATING FUELS

      
Application Number EP2007057571
Publication Number 2008/017582
Status In Force
Filing Date 2007-07-23
Publication Date 2008-02-14
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Rohovec, Joachim
  • Herzog, Friedhelm

Abstract

In order to improve the combustibility and the calorific value of fuels, these fuels are subjected to different pretreatment methods. In order to improve the cost-effectiveness of the pretreatment of fuels, it is proposed to remove noncombustible, gaseous constituents from the fuels and to convey said constituents in a gas stream to a further use. In particular the gas stream is subjected to a gas-splitting method through which gas constituents extracted from the fuel can be presented in pure form.

IPC Classes  ?

  • C10L 3/10 - Working-up natural gas or synthetic natural gas
  • C10L 9/08 - Treating solid fuels to improve their combustion by heat treatment, e.g. calcining
  • C10G 31/06 - Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for by heating, cooling, or pressure treatment
  • B01D 53/22 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
  • F25J 3/04 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air

53.

POLLUTANT-REDUCING PROTECTIVE GAS MIXTURE FOR THE MAG WELDING OF UNALLOYED OR LOW-ALLOYED STEELS

      
Application Number EP2006066240
Publication Number 2007/033916
Status In Force
Filing Date 2006-09-11
Publication Date 2007-03-29
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Hildebrandt, Bernd
  • Wankum, Achim

Abstract

In welding processes, harmful substances, such as for example nitrogen oxides, ozone, dusts and the like, occur on a considerable scale. In order to comply with occupational health and accident prevention regulations, sophisticated equipment such as ventilation and extraction devices have to be used. The use of a protective gas for the MAG welding of unalloyed steels with an active gas component of 1 to 8% carbon dioxide and/or 0.3 to 4% oxygen significantly reduces the occurrence of pollutants while maintaining approximately the same good welding result.

IPC Classes  ?

  • B23K 35/38 - Selection of media, e.g. special atmospheres for surrounding the working area
  • B23K 9/16 - Arc welding or cutting making use of shielding gas
  • B23K 9/173 - Arc welding or cutting making use of shielding gas and of consumable electrode

54.

DEVICE AND METHOD FOR SURFACE COOLING OF OBJECTS

      
Application Number EP2006064608
Publication Number 2007/012636
Status In Force
Filing Date 2006-07-25
Publication Date 2007-02-01
Owner MESSER GROUP GMBH (Germany)
Inventor De Cneudt, Peter

Abstract

According to the invention, a diffuser (11) is arranged after an expansion nozzle (2), which reduces the flow speed of a flow of carbon dioxide gas and carbon dioxide snow to a value at which the carbon dioxide snow falls evenly on the product (15). Said diffuser (11) may, for example, be a tube of cylindrical or conical shape with gas-permeable walls. The occurrence of turbulent flow is effectively prevented by application of said device.

IPC Classes  ?

  • F25D 3/12 - Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow

55.

METHOD AND DEVICE FOR FILLING PRESSURE VESSELS WITH NON-LIQUEFIED GASES OR GAS MIXTURES

      
Application Number EP2006050166
Publication Number 2006/082122
Status In Force
Filing Date 2006-01-11
Publication Date 2006-08-10
Owner MESSER GROUP GMBH (Germany)
Inventor
  • Grabhorn, Herrmann
  • Herzog, Friedhelm

Abstract

In order to be able to achieve high pressures, pressure vessels are filled according to the principle of 'cold filling', i.e. the filler gas is filled into the pressure vessel in a cold state. Once the pressure vessel is filled and the gas is heated to ambient pressure, the pressure in the pressure vessels multiplies several times. A problem that often occurs is that during filling the filler gas or a component of the filler gas mixture freezes out, thereby resulting in a malfunction of the filling device. For this purpose, the filler gas is transported to the pressure vessel to be charged in a cold yet gaseous state. The filler gas is supplied to a heat exchanger in a liquefied state and is then evaporated. The evaporated filler gas or the gas component are returned to the heat exchanger, where it thermally contacts the still liquid filler gas and is cooled to at least approximately the temperature of the liquid filler gas. The gas treated in this manner is very cold but at the same time available in a gaseous state of matter.

IPC Classes  ?

  • F17C 5/06 - Methods or apparatus for filling pressure vessels with liquefied, solidified, or compressed gases for filling with compressed gases
  • F17C 9/02 - Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
  • F17C 13/02 - Special adaptations of indicating, measuring, or monitoring equipment

56.

FUEL-OXYGEN BURNER AND METHOD FOR THE OPERATION THEREOF

      
Application Number EP2005007549
Publication Number 2006/005577
Status In Force
Filing Date 2005-07-12
Publication Date 2006-01-19
Owner
  • MESSER GROUP GMBH (Germany)
  • AIR LIQUIDE DEUTSCHLAND GMBH (Germany)
  • L'AIR LIQUIDE SOCIETE ANONYME A DIRECTOIRE ET CONSEIL DE SURVEILLANCE POUR L'ETUDE ET L'EXPLOITATION (France)
Inventor
  • Adendorff, Martin, William
  • Franke, Heinz
  • Köder, Horst

Abstract

Disclosed is a fuel-oxygen burner that is used for combustion processes producing low amounts of harmful substances (NOx) in the high temperature range. Said fuel-oxygen burner comprises a burner body (3) that is disposed in a main burner block (1) encompassing an additional burner block (2) and is provided with at least one fuel conduit (4) extending into a mixing chamber (10) of the additional burner block (2) as well as oxygen conduits (5) which are guided through the additional burner block (2) and extend into a combustion chamber (11) of the main burner block (1). The inventive fuel-oxygen burner is characterized in that the central axis of the fuel conduit (4) is located on the central axis of the main burner block (1) while the oxygen nozzles (8) are disposed in a partial circle around the central fuel conduit (4). Said fuel-oxygen burner is particularly suitable for the economical and ecologically friendly operation of industrial furnaces, above all melting furnaces, and most advantageously ash furnaces.

IPC Classes  ?

  • F23D 14/32 - Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
  • F23D 14/22 - Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
  • F23M 5/02 - Casings; Linings; Walls characterised by the shape of the bricks or blocks used

57.

RESPIMESSER

      
Application Number 867951
Status Registered
Filing Date 2005-10-17
Registration Date 2005-10-17
Owner Messer Group GmbH (Germany)
NICE Classes  ?
  • 05 - Pharmaceutical, veterinary and sanitary products
  • 10 - Medical apparatus and instruments

Goods & Services

Gases for medical purposes. Surgical, dental and veterinary instruments.

58.

VARIOMIX

      
Application Number 539802
Status Registered
Filing Date 1989-07-06
Registration Date 1989-07-06
Owner MESSER GROUP GMBH (Germany)
NICE Classes  ? 11 - Environmental control apparatus

Goods & Services

Apparatus for refrigerating.

59.

VARIOKUT

      
Application Number 536228
Status Registered
Filing Date 1989-04-08
Registration Date 1989-04-08
Owner Messer Group GmbH (Germany)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Dosage dispensers and parts thereof.

60.

OXISOLV

      
Application Number 519959
Status Registered
Filing Date 1987-12-16
Registration Date 1987-12-16
Owner MESSER GROUP GMBH (Germany)
NICE Classes  ?
  • 09 - Scientific and electric apparatus and instruments
  • 11 - Environmental control apparatus

Goods & Services

Measuring, regulating and dosing apparatus. Apparatus for gas regulating.