Patents for F25B 49 - Arrangement or mounting of control or safety devices (13,159) |
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01/20/1981 | CA1093849A1 Energy conservation system having improved means for controlling receiver pressure |
01/13/1981 | CA1093329A1 Multiple compressor heat pump with coordinated design |
01/07/1981 | EP0020332A1 A method for running a cooling-heating pump |
01/06/1981 | US4242879 Control system for a refrigerating apparatus operable electrically or by gas |
01/06/1981 | CA1093182A1 Refrigeration control system |
12/30/1980 | CA1092685A1 Control apparatus for two-speed single phase compressor |
12/23/1980 | US4240265 Mist spray apparatus for air conditioner condenser |
12/16/1980 | US4238933 Energy conserving vapor compression air conditioning system |
12/16/1980 | CA1091786A1 Air conditioning unit control |
12/02/1980 | US4236380 Control system for automatic delayed operation of a gas operated absorption refrigerator |
12/02/1980 | US4236379 Heat pump compressor crankcase low differential temperature detection and control system |
11/26/1980 | EP0019124A1 Heat pump and process for operating the same |
11/25/1980 | CA1090307A1 Control for a combination furnace and heat pump system |
11/18/1980 | US4233818 Heat exchange interface apparatus |
11/11/1980 | US4232530 Heat pump system compressor start fault detector |
11/04/1980 | US4231229 Energy conservation system having improved means for controlling receiver pressure |
10/28/1980 | US4230470 Air conditioning system |
10/21/1980 | US4228846 Control apparatus for a two-speed heat pump |
10/14/1980 | US4227862 Solid state compressor control system |
10/14/1980 | US4227380 Single casing, multiple duty valve |
10/07/1980 | US4226604 Method and apparatus for preventing overheating of the superheated vapors in a solar heating system using a refrigerant |
10/07/1980 | CA1087278A1 Control system for refrigeration apparatus |
09/16/1980 | CA1085636A1 Capillary retainer clip |
09/09/1980 | US4221116 Temperature compensated control for air conditioning system or heat pump |
09/02/1980 | US4220013 Pressure compensated control for air conditioning system or heat pump |
09/02/1980 | US4220011 Air cooled centrifugal refrigeration system with water heat recovery |
09/02/1980 | US4220010 Loss of refrigerant and/or high discharge temperature protection for heat pumps |
08/26/1980 | US4218890 Vapor compression cycle device with multi-component working fluid mixture and improved condensing heat exchanger |
08/19/1980 | US4217763 Asynchronous motor-driven machine having variable torque demand, such as household refrigerator compressors |
08/19/1980 | US4217760 Vapor compression cycle device with multi-component working fluid mixture and method of modulating its capacity |
07/29/1980 | US4214453 Injector cooler controls |
07/22/1980 | US4213306 Method and apparatus for increasing air conditioner efficiency |
07/08/1980 | US4211089 Heat pump wrong operational mode detector and control system |
07/01/1980 | US4209997 Accumulator cycling switch |
07/01/1980 | US4209996 Reciprocating compressor refrigeration system using step expansion and auto staging |
05/29/1980 | WO1980001102A1 A method for running a cooling-heating pump |
05/13/1980 | US4202181 Fuel conservation controller for heating and refrigeration apparatus |
05/06/1980 | US4201061 Automatic chilled water setpoint temperature control |
04/29/1980 | CA1076557A1 Method and apparatus for controlling heat pumps |
04/29/1980 | CA1076374A1 System for producing refrigeration and a heated liquid and control therefor |
04/08/1980 | US4196596 Liquid trap for freeze-up protection on air cooled centrifugal chiller |
04/02/1980 | EP0009145A1 Refrigerant compressor capacity control apparatus |
03/20/1980 | WO1980000491A1 Device for a heating or cooling unit |
03/18/1980 | US4193781 Head pressure control for heat reclaim refrigeration systems |
03/18/1980 | US4193270 Refrigeration system with compressor load transfer means |
03/18/1980 | US4193269 Apparatus for supplying a cooling liquid to a condenser of a refrigeration unit |
03/04/1980 | US4191027 Apparatus for cooling brine |
03/04/1980 | US4191024 Defrosting method and cooling apparatus in a refrigeration system |
02/26/1980 | US4190105 Heat exchange tube |
02/26/1980 | US4189929 Air conditioning and dehumidification system |
01/22/1980 | US4184341 Suction pressure control system |
01/22/1980 | CA1070129A1 Variable capacity multiple compressor refrigeration system |
01/15/1980 | US4183466 Thermally actuated phase change operated control valve for heat pump systems |
01/08/1980 | US4182133 Humidity control for a refrigeration system |
01/08/1980 | CA1069604A1 Switching device |
01/01/1980 | US4180986 Refrigeration system on/off cycle |
01/01/1980 | CA1068920A Head pressure control system for refrigeration apparatus |
12/25/1979 | US4179899 Refrigerating system |
12/25/1979 | US4179898 Vapor compression cycle device with multi-component working fluid mixture and method of modulating its capacity |
12/18/1979 | US4178988 Control for a combination furnace and heat pump system |
12/18/1979 | US4178771 Compressor refrigerator |
12/18/1979 | US4178769 System for producing refrigeration and a heated liquid and control therefor |
12/18/1979 | CA1068380A1 Heat pump system with multi-stage centrifugal compressors |
12/11/1979 | US4177649 Surge suppression apparatus for compressor-driven system |
11/20/1979 | CA1066525A2 Coordinated heat pump system |
09/18/1979 | US4167858 Refrigerant deficiency detecting apparatus |
08/28/1979 | US4165619 Method of controlling a heat pump, and a heat pump device adapted to operate in accordance with said method |
08/22/1979 | EP0003578A2 Refrigerant circuit of a heat pump |
08/14/1979 | US4164128 Absorption refrigeration system and control |
07/31/1979 | CA1059329A1 Two stage compressor heating |
07/17/1979 | US4161106 Apparatus and method for determining energy waste in refrigeration units |
06/26/1979 | CA1057069A1 Method and apparatus for making and holding ice in an artificial ice rink |
06/12/1979 | US4157649 Multiple compressor heat pump with coordinated defrost |
05/22/1979 | CA1054812A1 Refrigeration system subcooling control |
05/22/1979 | CA1054811A1 Heat pump control system |
05/08/1979 | US4152902 Control for refrigeration compressors |
05/01/1979 | US4151724 Pressurized refrigerant feed with recirculation for compound compression refrigeration systems |
04/17/1979 | CA1052633A1 Freeze/thaw indicator |
04/03/1979 | US4147203 Method and apparatus for controlling the heating and cooling function of a heat pump system |
03/27/1979 | US4146085 Diagnostic system for heat pump |
03/06/1979 | US4142375 Control apparatus for air conditioning unit |
02/27/1979 | CA1049275A1 Refrigeration system |
02/20/1979 | CA1048802A1 Heat reclaim unit |
02/13/1979 | US4138857 Cooling system bracket assembly for automotive vehicles |
02/13/1979 | US4138856 Leak detector device |
02/06/1979 | US4137725 Compressor control for a reversible heat pump |
01/30/1979 | US4137057 Refrigerating systems with multiple evaporator fan and step control therefor |
01/30/1979 | US4136528 Refrigeration system subcooling control |
01/23/1979 | CA1046784A1 Compressor refrigeration plant |
01/16/1979 | US4134274 System for producing refrigeration and a heated liquid and control therefor |
01/09/1979 | US4133186 Combined electrical cut-off and relief valve |
01/09/1979 | US4133185 Automatic air circulation control |
01/02/1979 | US4132086 Temperature control system for refrigeration apparatus |
01/02/1979 | US4132085 Control apparatus including an electronic timer |
11/28/1978 | CA1043116A1 Compressor refrigeration plant |
11/28/1978 | CA1043102A1 Air conditioning system for a railway vehicle |
11/07/1978 | US4123914 Energy saving change of phase refrigeration system |
10/17/1978 | US4120173 Head pressure control system for refrigeration apparatus |
10/10/1978 | CA1040287A1 Refrigeration system and control therefor |
09/12/1978 | US4112703 Refrigeration control system |