Tetra Tech, Inc.

United States of America

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2020 3
2019 2
Before 2019 3
IPC Class
B61L 23/04 - Control, warning or like safety means along the route or between vehicles or vehicle trains for monitoring the mechanical state of the route 2
A62D 3/02 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by biological methods, i.e. processes using enzymes or microorganisms 1
A62D 3/36 - Detoxification by using acid or alkaline reagents 1
B09B 1/00 - Dumping solid waste 1
B09C 1/06 - Reclamation of contaminated soil thermally 1
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Found results for  patents

1.

SYSTEM AND METHOD FOR GENERATING AND INTERPRETING POINT CLOUDS OF A RAIL CORRIDOR ALONG A SURVEY PATH

      
Application Number US2020033374
Publication Number 2020/232431
Status In Force
Filing Date 2020-05-18
Publication Date 2020-11-19
Owner TETRA TECH, INC. (USA)
Inventor Mesher, Darel

Abstract

An autonomous system for generating and interpreting point clouds of a rail corridor along a survey path while moving on a railroad corridor assessment platform. The system includes two rear-facing LiDAR sensors configured to scan along scan planes that intersect but not at all points and wherein neither scan plane intersects a main body of any rail car adjoined to a rear end of the railroad corridor assessment platform. The system also includes a plurality of high-resolution cameras for gathering image data from a rail corridor. The LiDAR sensors and the high-resolution cameras are housed in autonomously controlled and temperature controlled protective enclosures.

IPC Classes  ?

  • G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
  • G01S 17/88 - Lidar systems, specially adapted for specific applications
  • B61L 23/04 - Control, warning or like safety means along the route or between vehicles or vehicle trains for monitoring the mechanical state of the route
  • G01S 17/00 - Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
  • G08G 1/16 - Anti-collision systems

2.

AUTONOMOUS TRACK ASSESSMENT SYSTEM

      
Application Number US2020033449
Publication Number 2020/232443
Status In Force
Filing Date 2020-05-18
Publication Date 2020-11-19
Owner TETRA TECH, INC. (USA)
Inventor Mesher, Darel

Abstract

An autonomous railway track assessment apparatus includes: a railway track assessment platform including a boxcar including an enclosed space formed therein; one or more power sources located on the boxcar; a controller; a first sensor assembly in electronic communication with the controller oriented to capture data from the railway track; an air handling system located on the rail car, the air handling system including an air blower and a heater/chiller; a set of air ducts in fluid communication with the air handling system and the first sensor assembly for supplying heated or cooled blown air from the air from the handling system to the first sensor assembly. Data from the railway track is autonomously collected by the first sensor assembly controlled by the controller and such data is stored on the data storage device.

IPC Classes  ?

  • B61D 17/00 - Construction details of vehicle bodies
  • B61L 25/02 - Indicating or recording positions or identities of vehicles or vehicle trains
  • G01B 11/22 - Measuring arrangements characterised by the use of optical techniques for measuring depth
  • G01N 21/88 - Investigating the presence of flaws, defects or contamination
  • G01N 29/04 - Analysing solids

3.

WIND TURBINE FOUNDATION AND METHOD OF CONSTRUCTING A WIND TURBINE FOUNDATION

      
Application Number US2019054384
Publication Number 2020/072710
Status In Force
Filing Date 2019-10-03
Publication Date 2020-04-09
Owner TETRA TECH, INC. (USA)
Inventor
  • Kemp, Paul
  • Williams, Cory

Abstract

A wind turbine foundation and method for making a wind turbine foundation. The wind turbine foundation preferably includes a core member including a substantially cylindrically- shaped main body, a first outer flange extending out from the main body along an upper section of the core member, and a second outer flange extending out from the main body along a lower section of the core member, and a plurality of radial girders connected to the first outer flange and the second outer flange and radiating out from the core member.

IPC Classes  ?

  • E02D 27/42 - Foundations for poles, masts, or chimneys
  • E02D 27/44 - Foundations for machines, engines, or ordnance
  • E04H 12/22 - Sockets or holders for poles or posts
  • E04H 12/34 - Arrangements for erecting or lowering towers, masts, poles, chimney stacks, or the like
  • F03D 13/20 - Arrangements for mounting or supporting wind motors; Masts or towers for wind motors

4.

APPARATUS AND METHOD FOR CALCULATING WOODEN CROSSTIE PLATE CUT MEASUREMENTS AND RAIL SEAT ABRASION MEASUREMENTS BASED ON RAIL HEAD HEIGHT

      
Application Number IB2018058574
Publication Number 2019/229513
Status In Force
Filing Date 2018-11-01
Publication Date 2019-12-05
Owner TETRA TECH, INC. (USA)
Inventor Mesher, Darel

Abstract

A system and method for inspecting a railway track. The system preferably includes: a processor; at least one sensor oriented to capture data of the railway track; a data storage device in electronic communication with the processor; and computer executable instructions stored on a computer readable storage medium in communication with the processor operable to: determine an elevation of a surface of a rail head of a rail located on the railway track based on a distance to the rail head from the at least one sensor, determine an elevation of a surface of a crosstie of the railway track based on a distance to a top surface of the crosstie from the at least one sensor, estimate a total rail height and underlying rail support, and calculate a crosstie wear value based on the determined rail head surface elevation, crosstie surface elevation, and estimated total rail height and underlying rail support.

IPC Classes  ?

  • B61L 23/04 - Control, warning or like safety means along the route or between vehicles or vehicle trains for monitoring the mechanical state of the route
  • G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness

5.

VERTICAL MANHOLE APPARATUS AND METHOD FOR PROVIDING ACCESS TO LEACHATE COLLECTION PIPES IN A LANDFILL

      
Application Number US2018056246
Publication Number 2019/079421
Status In Force
Filing Date 2018-10-17
Publication Date 2019-04-25
Owner TETRA TECH, INC. (USA)
Inventor
  • Torresani, Mark
  • Kneser, Kyle

Abstract

A vertical manhole apparatus for use in a waste facility to provide access to one or more leachate collection pipe access points. The vertical manhole is stabilized using stabilizing features extending out from a vertical pipe of the vertical manhole apparatus. The vertical pipe is formed by a plurality of pipe segments, and the stabilizing features include deadman anchors connected to first ends of cables. The apparatus further comprises a tension control system connected to the second ends of the cables, wherein the tension control system controls the tension of the cables by increasing or decreasing the tension between the tension control system and deadman anchors.

IPC Classes  ?

6.

BROKEN WHEEL DETECTION SYSTEM

      
Application Number US2018019138
Publication Number 2018/156703
Status In Force
Filing Date 2018-02-22
Publication Date 2018-08-30
Owner TETRA TECH, INC. (USA)
Inventor Mesher, Darel

Abstract

A broken wheel detection system for detecting broken wheels on rail vehicles even when such vehicles are moving at a high rate of speed.

IPC Classes  ?

  • G06T 7/62 - Analysis of geometric attributes of area, perimeter, diameter or volume
  • G01M 17/013 - Wheels
  • G01B 11/245 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
  • G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object
  • B61K 9/12 - Measuring or surveying wheel-rims

7.

A SITE REMEDIATION SYSTEM AND A METHOD OF REMEDIATING A SITE

      
Application Number US2016022623
Publication Number 2016/149353
Status In Force
Filing Date 2016-03-16
Publication Date 2016-09-22
Owner TETRA TECH, INC. (USA)
Inventor
  • Labbett, Andrew
  • Blackam, Michael
  • Cheong, Yik

Abstract

A site remediation system for remediating a site including a liquid recirculation mechanism for taking liquid to be remediated from the site, heating the liquid along the liquid recirculation mechanism, optionally treating the liquid using a bioremediation mechanism, and then retuming the liquid to the site at an elevated temperature.

IPC Classes  ?

  • A62D 3/02 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by biological methods, i.e. processes using enzymes or microorganisms
  • B09C 1/06 - Reclamation of contaminated soil thermally
  • B09C 1/08 - Reclamation of contaminated soil chemically

8.

METHOD OF CHEMICAL TREATMENT OF SOILS CONTAINING NITROAROMATIC COMPOUNDS

      
Application Number US2009049282
Publication Number 2010/002907
Status In Force
Filing Date 2009-06-30
Publication Date 2010-01-07
Owner TETRA TECH, INC. (USA)
Inventor
  • Britto, Ronald
  • Patel, Madhukant
  • Spangberg, Mikael, L.
  • Arnseth, Richard, W.
  • Bogle, Franklin, R.

Abstract

A method for remediating hazardous materials susceptible to nucleophillic attack is disclosed wherein sodium hydroxide is applied to a treatment zone in situ for raising the pH of the treatment zone to at least about 12.5 so that alkaline hydrolysis effectively breaks down the hazardous substance by replacing a leaving group with a nucleophile. The method is well suited for in situ use in the vadose zone to treat contaminated soil and groundwater.

IPC Classes  ?

  • A62D 3/36 - Detoxification by using acid or alkaline reagents