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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 |
| 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 |
| 4830095 |
Temperature control system for air conditioning system |
May. 16, 1989 |
| 4830274 |
Pressure independent VAV valve with pressure dependent backup |
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 |
| 4718021 |
Technique for fan cycling to maintain temperature within prescribed limits |
Jan. 5, 1988 |
| 4716957 |
Duct type multizone air conditioning system |
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 |
| 4615481 |
Air conditioner |
Oct. 7, 1986 |
| 4616325 |
Zone condition controller and method of using same |
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 |
| 4518116 |
Automatic damper operator |
May. 21, 1985 |
| 4495986 |
Method of operating a variable volume multizone air conditioning unit |
Jan. 29, 1985 |
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