Patents
Sitemap › F25 - Refrigeration or cooling; Combined heating and refrigeration systems; Heat pump systems; Manufacture or storage of ice; Liquefaction or solidification of gases › F25B - Refrigeration machines, plants, or systems; Combined heating and refrigeration systems; Heat pump systems › F25B 41 - Fluid-circulation arrangements, e.g. for transferring liquid from evaporator to boiler
Patents for F25B 41 - Fluid-circulation arrangements, e.g. for transferring liquid from evaporator to boiler (17,040)
09/1980
09/09/1980US4221237 Refrigeration heat pump changeover valve assembly
07/1980
07/29/1980US4214453 Injector cooler controls
07/29/1980CA1082473A1 Cryogenic device
07/22/1980US4213483 Reversing valve construction and parts therefor and methods of making the same
07/22/1980US4213308 Vortex generator for separating a gaseous and liquid refrigerant
07/15/1980US4212324 Reversing valve construction and method of making the same
06/1980
06/24/1980US4208886 Subcooling valve for split system air conditioning apparatus with remote condensing unit
05/1980
05/13/1980US4202373 Four way valve
05/13/1980US4202182 Multi-tube evaporator for a cooler used in an automobile
04/1980
04/02/1980EP0009145A1 Refrigerant compressor capacity control apparatus
03/1980
03/25/1980CA1074139A1 Integrated controls assembly
03/18/1980US4193270 Refrigeration system with compressor load transfer means
02/1980
02/19/1980US4188975 Reversing valve construction and valve member therefor and methods of making the same
02/12/1980US4187695 Air-conditioning system having recirculating and flow-control means
02/12/1980US4187691 Heat pump bypass valve arrangement
01/1980
01/22/1980US4184661 Disconnectable coupling for a split system air conditioner
01/22/1980US4184342 Variable restrictor for a refrigeration system
01/22/1980US4184341 Suction pressure control system
12/1979
12/25/1979US4179894 Dual source heat pump
12/18/1979US4178768 Internally piloted reversing valve for heat pump
11/1979
11/27/1979US4175402 Capillary plug button
11/14/1979EP0005353A1 Method and apparatus for transporting aquatic food materials under refrigerated conditions
10/1979
10/23/1979CA1064717A1 Portable cooling apparatus
10/16/1979US4171087 Control valve
10/16/1979US4170998 Portable cooling apparatus
10/02/1979US4169361 Method of and apparatus for the generation of cold
09/1979
09/18/1979US4167858 Refrigerant deficiency detecting apparatus
08/1979
08/22/1979EP0003578A2 Refrigerant circuit of a heat pump
08/21/1979USRE30076 Four-way reversing valve with differential area operator
08/21/1979US4165037 Apparatus and method for combined solar and heat pump heating and cooling system
08/07/1979US4163372 Capillary retainer clip
07/1979
07/31/1979US4162566 Method and coupling for severing and rejoining sealed tubing
07/10/1979US4160366 Absorption refrigerating apparatus
07/03/1979US4159735 Plate-fin heat exchanger with controls therefor
06/1979
06/26/1979US4158950 Heat pump defrost system
06/26/1979CA1057071A1 Air cooled centrifugal refrigeration machine with provision to prevent evaporator freezing
06/19/1979US4158437 Thermostatic expansion valve for refrigeration plants
05/1979
05/22/1979CA1054812A1 Refrigeration system subcooling control
04/1979
04/24/1979US4150558 Method for forming a variable restrictor
04/17/1979US4149390 Evaporator
04/03/1979US4147037 High efficiency heat exchange for refrigeration suction line/capillary tube assembly
03/1979
03/20/1979US4144905 Reversing valve construction and method of making the same
03/06/1979CA1049798A1 Hot gas defrost system with dual function liquid line
02/1979
02/20/1979US4139990 Fluid pulsation and transient attenuator
02/13/1979US4139355 Four wave valve for reversible cycle refrigeration system
02/13/1979US4138879 Sightless bubble detector
01/1979
01/30/1979US4136528 Refrigeration system subcooling control
01/23/1979CA1046784A1 Compressor refrigeration plant
01/09/1979US4133186 Combined electrical cut-off and relief valve
12/1978
12/26/1978US4131128 Control valve
12/19/1978US4129995 Evaporation pressure control device
12/19/1978CA1044592A1 Refrigeration process, in particular for liquefying a gas
12/12/1978US4129012 Heat transfer method and apparatus
12/12/1978CA1044031A1 Oil pump for motor compressor
11/1978
11/28/1978CA1043117A1 Multiple stage expansion valve for an automative air conditioning system
11/28/1978CA1043116A1 Compressor refrigeration plant
11/21/1978US4126156 Fluid pulsation and transient attenuator
11/21/1978US4126016 Vacuum interconnect for heating and cooling unit
11/14/1978US4124995 Expansion device
11/07/1978US4123919 Refrigeration feed system
11/07/1978CA1041782A1 Control means for refrigeration systems
09/1978
09/19/1978US4114397 Evaporator
09/12/1978US4112974 Reversing valve
09/12/1978US4112704 Pilot valve-type evaporating pressure-regulating valve used in refrigerators
09/12/1978US4112703 Refrigeration control system
09/12/1978CA1038178A1 Movable expansion valve
08/1978
08/15/1978US4106691 Valve arrangement for refrigeration plants
08/15/1978US4106308 Heating and cooling system with capillary control means
08/01/1978US4103510 Portable cooling chest operatively attachable to an automobile air conditioning system
07/1978
07/25/1978US4102151 Hot gas defrost system with dual function liquid line
07/18/1978US4100935 Check valve for heat pump systems
07/18/1978US4100762 Integrated controls assembly
06/1978
06/27/1978US4096993 Compensated control valve
06/27/1978US4096708 Compressor refrigeration plant
06/27/1978US4096706 Free condensing liquid retro-pumping refrigerator system and method
06/20/1978US4095742 Balanced single port thermostatic expansion valve
06/13/1978US4094168 Ice making refrigeration system
05/1978
05/02/1978US4086782 Noise reduction arrangement for a compressor type refrigerator
04/1978
04/18/1978US4084388 Refrigeration control system for optimum demand operation
04/11/1978US4083196 Compressor refrigeration plant
04/11/1978US4083195 Refrigerating and defrosting system with dual function liquid line
04/04/1978US4081971 Air cooled centrifugal refrigeration machine with provision to prevent evaporator freezing
03/1978
03/21/1978US4079886 Double ported expansion valve
01/1978
01/24/1978US4069687 Refrigeration evaporative booster combination
01/24/1978US4069686 Coupling for use in servicing air conditioning systems
01/17/1978US4068494 Power saving capacity control for air cooled condensers
01/10/1978US4067203 Control system for maximizing the efficiency of an evaporator coil
01/03/1978US4065939 Combination valve
12/1977
12/27/1977US4064826 Refrigerant liquid indicator
11/1977
11/29/1977US4059968 Refrigeration system
11/08/1977US4057074 Bidirectional piston valve
10/1977
10/25/1977US4055056 Reversible refrigerant system and four-way reversing valve therefor or the like
06/1977
06/28/1977US4032070 Thermostatic expansion valve for refrigeration installations
06/28/1977US4031745 Method of forming constriction in tubing
06/07/1977US4027700 Reversing valve construction
06/07/1977US4027496 Dual liquid delivery and separation apparatus and process
05/1977
05/31/1977US4026347 Method and apparatus for the alternate heating and cooling of a heat exchanger of a heating and cooling system
05/31/1977US4026320 Valve assembly for panel mounting
05/31/1977US4026122 Refrigeration system
05/17/1977US4023377 Defrosting system in a compression refrigerator
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