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Class Information
Number: 236/1B
Name: Automatic temperature and humidity regulation > Miscellaneous > Zone control for heating and cooling medium
Description:
Patents under this class:
Patent Number |
Title Of Patent |
Date Issued |
5725052 |
Dual zone air-conditioning system for motor vehicles with improved air flow rate |
Mar. 10, 1998 |
5715997 |
Air temperature control apparatus for vehicle use |
Feb. 10, 1998 |
5701750 |
Zone demand controlled dual heat pump system and controller therefor |
Dec. 30, 1997 |
5682949 |
Energy management system |
Nov. 4, 1997 |
5642856 |
Air conditioner |
Jul. 1, 1997 |
5622221 |
Integrated zoning circulator with priority controller |
Apr. 22, 1997 |
5557555 |
Circuit for regulating the air conditioning of premises |
Sep. 17, 1996 |
5544697 |
Differential temperature control |
Aug. 13, 1996 |
5501265 |
Fluid flow control for HVAC system with valve position readjustment to equalize conditioning rates in multiple zones |
Mar. 26, 1996 |
5495887 |
Temperature control system and controller therefor |
Mar. 5, 1996 |
5413165 |
Temperature control system for multi-story building |
May. 9, 1995 |
5361984 |
Device for selective climate control in vehicle cabins |
Nov. 8, 1994 |
5344069 |
Air conditioning apparatus for distributing primarily-conditioned air to rooms |
Sep. 6, 1994 |
5325286 |
Micro-computer operated control device for air-conditioning system |
Jun. 28, 1994 |
5303767 |
Control method and system for controlling temperatures |
Apr. 19, 1994 |
5289868 |
Absorption chiller heater and unit-type air conditioning system |
Mar. 1, 1994 |
5249596 |
Residential heating and air conditioning barometric bypass damper |
Oct. 5, 1993 |
5245835 |
Method and apparatus for interior space conditioning with improved zone control |
Sep. 21, 1993 |
5181653 |
Residential heating and air conditioning control system |
Jan. 26, 1993 |
5179524 |
Fan-powered mixing box assembly |
Jan. 12, 1993 |
5161608 |
Air conditioning system for a building |
Nov. 10, 1992 |
5103896 |
Air-conditioning system and operation method thereof |
Apr. 14, 1992 |
5101639 |
Air handling system utilizing direct expansion cooling |
Apr. 7, 1992 |
5076346 |
Air conditioner |
Dec. 31, 1991 |
5039008 |
Air conditioner |
Aug. 13, 1991 |
4928750 |
VaV valve with PWM hot water coil |
May. 29, 1990 |
4909308 |
Changeover valve for a central air conditioning unit |
Mar. 20, 1990 |
4886110 |
HVAC zone control system |
Dec. 12, 1989 |
4884214 |
Thermostat |
Nov. 28, 1989 |
4864274 |
Remote reading thermostat |
Sep. 5, 1989 |
4856710 |
Dual air conditioner for a vehicle |
Aug. 15, 1989 |
4843832 |
Air conditioning system for buildings |
Jul. 4, 1989 |
4843084 |
Thermostat control system |
Jun. 27, 1989 |
4830274 |
Pressure independent VAV valve with pressure dependent backup |
May. 16, 1989 |
4830095 |
Temperature control system for air conditioning system |
May. 16, 1989 |
4829447 |
Bypass controller and bypass system |
May. 9, 1989 |
4819716 |
Advanced zone damper system |
Apr. 11, 1989 |
4805519 |
Control system |
Feb. 21, 1989 |
4716957 |
Duct type multizone air conditioning system |
Jan. 5, 1988 |
4718021 |
Technique for fan cycling to maintain temperature within prescribed limits |
Jan. 5, 1988 |
4703747 |
Excess air control |
Nov. 3, 1987 |
4673029 |
Zoned heating and air conditioning system |
Jun. 16, 1987 |
4646964 |
Temperature control system |
Mar. 3, 1987 |
4630670 |
Variable volume multizone system |
Dec. 23, 1986 |
4630221 |
Zone condition controller and method of using same |
Dec. 16, 1986 |
4616325 |
Zone condition controller and method of using same |
Oct. 7, 1986 |
4615481 |
Air conditioner |
Oct. 7, 1986 |
4574283 |
Data transmission system for use in an air conditioning control apparatus |
Mar. 4, 1986 |
4549601 |
Variable volume multizone system |
Oct. 29, 1985 |
4531573 |
Variable volume multizone unit |
Jul. 30, 1985 |
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