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 47 - Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
Patents for F25B 47 - Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass (3,979)
04/1985
04/30/1985US4513581 Refrigerator cooling and freezing system
04/17/1985EP0137731A2 Method and system of control for a cluthless variable displacement cooling system
03/1985
03/26/1985US4506513 Cold trap
02/1985
02/19/1985US4499739 Control device for refrigeration cycle
12/1984
12/12/1984EP0128108A2 Apparatus and method for defrosting a heat exchanger in a refrigeration circuit
12/11/1984US4487036 Hermetically circulating, absorption type refrigerator
11/1984
11/07/1984EP0124110A2 Defrosting device for several refrigeration plants
10/1984
10/31/1984EP0123638A2 A system for draining liquid refrigerant from a subcooler in a vapor compression refrigeration system
10/31/1984EP0123554A2 Refrigeration unit
10/23/1984CA1176729A1 Defrost control system and display panel
10/09/1984US4476146 Method of pasteurizing an edible frozen congealed in machines provided with gas-compression refrigerating circuit
10/09/1984US4475354 System for draining liquid refrigerant from a subcooler in a vapor compression refrigeration system
10/03/1984EP0120490A2 Defrost control system
10/02/1984US4474026 Refrigerating apparatus
10/02/1984US4474024 Defrost control apparatus and method
09/1984
09/19/1984EP0119024A2 Refrigerator cooling and freezing system
09/18/1984US4471632 Method of controlling refrigeration system for automotive air conditioner
09/11/1984US4470272 Heat exchangers, evaporators condensers
08/1984
08/15/1984EP0115799A1 Method and device for the control of the initiation and termination of the defrosting of a heat pump evaporator
08/07/1984CA1172054A1 Method for producing heat by means of a heat pump using a mixture of fluids as working agents and air as heat source
07/1984
07/24/1984US4461635 Cryopump or heat pump circuit
07/24/1984US4461345 Heat-augmented heat exchanger system
06/1984
06/19/1984CA1169260A1 Gravity defrost
05/1984
05/08/1984CA1166861A1 Refrigerant gas heater system for display cabinets
04/1984
04/10/1984US4441546 Method of operating a heat-augmented heat pump system
03/1984
03/20/1984US4437317 In a refrigeration system
12/1983
12/20/1983US4420943 Method and apparatus for refrigerator defrost
12/13/1983US4420034 Heat-augmented heat exchanger
11/1983
11/29/1983US4417452 Heat pump system defrost control
10/1983
10/25/1983US4411139 Defrost control system and display panel
10/04/1983US4407137 Fast defrost heat exchanger
08/1983
08/16/1983CA1152185A1 Method and apparatus for transport refrigeration system control
08/10/1983EP0085381A2 Wrapped fin heat exchanger circuiting
08/02/1983US4395887 Defrost control system
08/02/1983CA1150959A1 Heat pump system
06/1983
06/28/1983US4389856 Refrigerant gas heater system for display cabinets
06/28/1983US4389851 Method for defrosting a heat exchanger of a refrigeration circuit
04/1983
04/27/1983EP0077414A1 Air temperature conditioning system
04/05/1983CA1143959A1 Heat-augmented heat exchanger
02/1983
02/15/1983US4373350 Heat pump control/defrost circuit
02/15/1983US4373348 Energy saving refrigeration system
01/1983
01/18/1983US4369350 Electric defroster heater mounting arrangement for stacked finned refrigeration evaporator
12/1982
12/28/1982US4365983 Energy saving refrigeration system
12/28/1982US4365480 Process gas treating apparatus
11/1982
11/23/1982US4359877 Heat pump coil circuit
11/23/1982CA1135968A1 Apparatus and method for defrosting a heat exchanger of a refrigeration circuit
11/02/1982US4357236 Automatic addition of a corrosion inhibitor to a coolant system by osmotic pressure
11/02/1982US4356703 Refrigeration defrost control
10/1982
10/27/1982EP0063351A2 Defrost control system and display panel
10/27/1982EP0063178A1 Method of operating a heat pump
10/26/1982CA1134159A1 Refrigeration unit with water cooled condenser
10/12/1982US4353221 Transport refrigeration system
09/1982
09/21/1982US4350020 Process for producing heat by means of a heat pump operated with a fluid mixture as working agent and air as heat source
09/08/1982EP0059330A2 Method of pasteurizing alimentary products in machines provided with gas-compression refrigerating circuits
08/1982
08/31/1982US4346566 Refrigeration system gravity defrost
08/31/1982US4346565 Gravity defrost
08/31/1982CA1130589A1 Energy saving refrigeration system
08/24/1982US4345441 Defroster for the evaporator of a refrigerator
08/10/1982US4343157 Refrigerator
07/1982
07/20/1982CA1128013A1 Automatic addition of a corrosion inhibitor to a coolant system by osmotic pressure
06/1982
06/30/1982EP0055005A2 Cooling device
06/29/1982US4336692 Dual source heat pump
06/22/1982US4335742 Evaporator pressure regulator
06/22/1982US4335580 Refrigeration unit with water cooled condenser
06/10/1982WO1982001935A1 A method and equipment for defrosting the vaporiser of compressor refrigeration machinery
06/01/1982US4332141 Defrost control system for refrigeration system
06/01/1982US4332137 Heat exchange apparatus and method having two refrigeration circuits
05/1982
05/11/1982US4328680 Heat pump defrost control apparatus
05/04/1982US4327558 Unloadable transport refrigeration unit control
04/1982
04/27/1982US4326868 Refrigeration system utilizing a gaseous refrigerant bypass
04/20/1982US4325224 Method and apparatus for transport refrigeration system control
04/13/1982US4324106 Refrigeration system
04/06/1982CA1121168A1 Refrigeration circuit defrost system, method and components
04/06/1982CA1121167A1 Heat exchanger apparatus and method having two refrigeration circuits
03/1982
03/09/1982US4318277 Non-reverse hot gas defrost system
02/1982
02/23/1982US4316365 Defrost control system for refrigeration system
02/23/1982CA1118870A1 Heat pump control system
02/09/1982CA1118073A1 Defrosting control system
02/02/1982US4313313 Apparatus and method for defrosting a heat exchanger of a refrigeration circuit
01/1982
01/19/1982US4311192 Heat-augmented heat exchanger
01/19/1982US4311191 Heat-augmented heat exchanger
01/19/1982US4311024 Hermetically circulating, absorption type refrigerator
12/1981
12/29/1981US4308042 Heat pump with freeze-up prevention
12/15/1981US4305417 Rotationally indexing valve
12/01/1981US4302947 Heat pump system defrost control
12/01/1981US4302945 Method for defrosting a refrigeration system
10/1981
10/20/1981US4295344 Refrigeration unit with water
09/1981
09/01/1981US4286437 Energy saving refrigeration system
09/01/1981US4286435 Hot gas defrost system
08/1981
08/25/1981US4285210 Self-contained heating and cooling apparatus
08/25/1981US4285205 Refrigerant sub-cooling
07/1981
07/21/1981US4279129 Hot gas defrost system
07/15/1981EP0031946A2 System for heat pump defrost control
07/15/1981EP0031945A2 Heat pump defrost control
07/07/1981US4276755 Gas defrost system including heat exchange
04/1981
04/29/1981EP0027754A2 Heat exchange unit using a refrigerating fluid provided with a defrosting system
04/29/1981EP0027604A2 Refrigeration system having two refrigeration circuits
04/28/1981US4263962 Heat pump control system
04/28/1981CA1099934A1 Heat pump system
04/21/1981US4262496 Refrigeration circuit defrost system, method and components
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