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2023
|
P/S
|
Electronic controller for HVAC units |
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2022
|
P/S
|
Electronic controllers for HVAC systems |
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2020
|
P/S
|
Heat exchangers. |
|
|
P/S
|
Air to air plate energy recovery systems, comprised of heat sink modules, damper modules, control... |
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2018
|
Invention
|
Diffuser patterning. An air diffuser includes a mask plate spaced upstream from an orifice plate ... |
|
2017
|
P/S
|
Electronic controller for HVAC units, the foregoing not for security purposes |
|
|
P/S
|
Electronic controller for HVAC units |
|
2014
|
Invention
|
Constant total orifice area damper. A sliding plate air damper allows control over air flow with ... |
|
2008
|
Invention
|
Air handling unit using multiple fans. An air handling unit for supplying air to a building inclu... |
|
|
Invention
|
Air handling unit using multiple fans.
An air handling unit for supplying air to a building incl... |
|
2007
|
Invention
|
Gas diffusion device. A gas diffusion device used in conjunction with a flow of gas from a condui... |
|
2004
|
Invention
|
Variable volumetric flow heat exchanger for an air-to-air heat recovery system. A variable volume... |
|
2002
|
Invention
|
Unit ventilator. A unit ventilator is disclosed wherein, in order to facilitate service and repai... |
|
|
Invention
|
Venturi type air distribution system. An air handling system for a building having a ceiling and ... |
|
|
Invention
|
Air handling unit with supply and exhaust fans. An air handling apparatus for blending outside an... |
|
2001
|
Invention
|
Air-to-air heat recovery system. An air-to-air heat recovery system for use with a building venti... |
|
|
Invention
|
Air inlet and outlet silencer structures for turbine. Both air duct inlet silencers and air duct ... |
|
|
Invention
|
Sound attenuating inlet silencer for air supplying fan. An air duct silencer can be used at the i... |
|
|
Invention
|
Column fan unit. An air handling system for use in a building is used in combination with an elev... |
|
|
Invention
|
Air mixing device having series of parallel airflow passages. An air mixer for an air distributio... |
|
2000
|
P/S
|
Air volume control sold as a unit for an air handling system of a commercial, industrial or insti... |
|
|
Invention
|
Venturi type air distribution system. An air handling system for an enclosed space in a building ... |
|
1999
|
Invention
|
High efficiency air mixer using jet streams. A mixer for first and second fluids, e.g. fresh air ... |
|
|
Invention
|
High efficiency air mixer. An air mixer for an air distribution system for a building includes a ... |
|
1998
|
Invention
|
Centrifugal fan unit with vertical rotation axis. A centrifugal fan system for a building, includ... |
|
|
Invention
|
Centrifugal fan unit with vertical rotation axis. A centrifugal fan system for a building include... |
|
1997
|
Invention
|
Fan system with variable air volume control. A centrifugal fan apparatus for installation in an a... |
|
1996
|
Invention
|
Fan for air handling system. A fan unit for a building's air handling system comprising a support... |
|
|
Invention
|
Air handling structure for fan inlet and outlet. Combined air duct apparatus and silencer for att... |
|
1994
|
Invention
|
Air handling structure for pan inlet and outlet. Combined air duct apparatus and silencer for att... |
|
1989
|
P/S
|
Gas fired air heating equipment and ventilating equipment.
Gas fired heating equipment and heat t... |
|
1987
|
P/S
|
GAS FIRED HEATERS; VENTILATORS; FURNACES; AIR SUPPLY AND EXHAUST FANS AND BLOWERS; AIR CURTAINS; ... |
|
1986
|
P/S
|
GAS FIRED AIR HEATERS AND VENTILATORS; GAS FIRED HEATERS AND FURNACES, AIR SUPPLY AND EXHAUST FAN... |
|
1976
|
Invention
|
Radiating or absorbing heat exchange panel. A heat exchanger in the form of a heat radiating or a... |
|
1972
|
P/S
|
Gas fired air heating equipment, namely heaters and furnaces and ventilating equipment, namely ai... |
