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 29 - Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
Patents for F25B 29 - Combined heating and refrigeration systems, e.g. operating alternately or simultaneously (6,502)
11/1981
11/04/1981EP0039315A1 A single electrical appliance consisting in a refrigerator and a water heater working together
11/03/1981US4297855 Air valve heat pump
11/03/1981US4297854 Air valve heat pump
11/03/1981US4297853 Retractable handle for air valve heat pump
10/1981
10/06/1981US4293323 Comprising a heat exchange element for insertion into a water heater storage tank
10/06/1981US4292814 Heat pump
09/1981
09/29/1981US4291757 Multiple heat pump and heat balancing system for multi-stage material processing
09/29/1981US4291545 Absorption heat pump
09/22/1981US4290275 Heat pump water heater
09/02/1981EP0034588A1 Heat recuperation device for domestic cooler systems
09/01/1981US4286437 Energy saving refrigeration system
08/1981
08/25/1981US4285392 Heating and cooling system
08/25/1981US4285210 Self-contained heating and cooling apparatus
08/25/1981US4285209 Absorption heat pump installation
08/12/1981EP0033530A1 Device for air conditioning rooms and/or utilization of heat using ambient energy
08/04/1981US4282070 Energy conversion method with water recovery
08/04/1981US4281519 Refrigeration circuit heat reclaim method and apparatus
07/1981
07/14/1981US4278502 Chemical recovery apparatus
06/1981
06/30/1981CA1103918A1 Drying plant, particularly for timber
06/30/1981CA1103910A1 Dual temperature thermal energy storage composition for heat pump
06/09/1981US4272389 Absorption heat pump work medium consisting of a solution of a fluorochloroalkane in a substituted amino phosphorus oxide
06/02/1981US4270363 Refrigerating machine including energy conserving heat exchange apparatus
05/1981
05/27/1981EP0029141A2 Heat pump
05/19/1981CA1101231A1 Heat transfer control circuit for a heat pump
05/19/1981CA1101211A1 Swimming pool dehumidifier
04/1981
04/29/1981EP0027604A2 Refrigeration system having two refrigeration circuits
04/28/1981US4263785 Method and system for recovering heat in association with dairy operations
04/22/1981EP0027243A1 Method and apparatus for satisfying heating and cooling demands and control therefor
04/21/1981US4262488 System and method for controlling the discharge temperature of a high pressure stage of a multi-stage centrifugal compression refrigeration unit
04/15/1981EP0026793A1 Heat pump driven by a combustion engine
04/14/1981US4261176 Thermodynamic assembly
04/08/1981EP0026400A2 Method and apparatus for satisfying heating and cooling demands
03/1981
03/10/1981US4254632 Method and apparatus for satisfying heating and cooling demands and control therefor
03/10/1981US4254631 Method and apparatus for satisfying heating and cooling demands and control therefor
03/10/1981US4254630 Heat reclaiming method and apparatus
03/10/1981CA1097089A1 Liquid piston heat-actuated heat pump and method of operating same
03/03/1981US4253312 Apparatus for the recovery of useful heat from refrigeration gases
03/03/1981US4253310 Method and apparatus for air conditioning motor vehicles
03/03/1981US4253309 Heat pump arrangement
02/1981
02/24/1981US4251996 Heat reclaiming method and apparatus
02/19/1981WO1981000447A1 Heat recuperation device for domestic cooler systems
02/10/1981US4249390 Air conditioning system
02/03/1981US4248292 Heat transfer control circuit for a heat pump
01/1981
01/27/1981US4246764 Water and energy conservation system for food serving establishments
01/07/1981EP0020332A1 A method for running a cooling-heating pump
12/1980
12/30/1980CA1092597A1 Process and apparatus for heat exchange between fluids
12/23/1980US4240267 System for vaporizing carbon dioxide utilizing the heat by-product of the refrigeration system as a heat source
12/09/1980US4237698 Motor cooling system for refrigeration machine
12/02/1980CA1090599A1 Condenser and hot water system
11/1980
11/11/1980CA1089423A1 Method for operating a heating system for dwelling, working and assembly rooms with heat pumps as heat generating device and a heating system for performing the method
11/04/1980CA1088729A1 Method and apparatus for transferring energy in an absorption system
10/1980
10/29/1980EP0017840A2 Heating and cooling apparatus
10/21/1980US4228661 Method and apparatus for redistributing heat within a room
10/14/1980CA1087410A1 Energy recovery system
10/07/1980US4226606 Waste heat recovery system
10/07/1980US4226089 Waste heat recovery device
09/1980
09/30/1980US4224803 Chemical heat pump
09/30/1980CA1086517A1 Heat pump
09/23/1980US4223537 Air cooled centrifugal water chiller with refrigerant storage means
09/02/1980US4220011 Air cooled centrifugal refrigeration system with water heat recovery
08/1980
08/12/1980US4216659 Thermal system
08/05/1980US4215817 Devices for heating premises by the use of heat pumps and method therefor
08/05/1980US4215551 Environmentally assisted heating and cooling system
08/05/1980CA1082934A1 Thermodynamic installation
07/1980
07/01/1980US4209998 Air source heat pump with displacement doubling through multiple slide rotary screw compressor/expander unit
07/01/1980US4209996 Reciprocating compressor refrigeration system using step expansion and auto staging
06/1980
06/25/1980EP0012204A1 Heat recovery unit
06/17/1980CA1079510A1 Composition, method and apparatus for absorption heating
06/10/1980US4206745 Solar operated chemical heat pump
06/03/1980US4206018 Electrodeposition
06/03/1980US4205532 Apparatus for and method of transferring heat
06/03/1980CA1078633A1 Hydride heat pump
05/1980
05/29/1980WO1980001102A1 A method for running a cooling-heating pump
05/20/1980US4203302 Floor mounted air conditioner
05/14/1980EP0010551A1 Absorption heat pump system
04/1980
04/29/1980US4200144 Hydride heat pump
04/29/1980US4199959 Solid adsorption air conditioning apparatus and method
04/29/1980US4199955 Heat extraction or reclamation apparatus for refrigerating and air conditioning systems
04/29/1980US4199952 Modular solar powered heat pump
04/29/1980CA1076374A1 System for producing refrigeration and a heated liquid and control therefor
04/15/1980US4197715 Heat pump
04/08/1980US4196526 Drying plant, particularly for timber
03/1980
03/18/1980US4193781 Head pressure control for heat reclaim refrigeration systems
03/04/1980US4191023 Fuel fired supplementary heater for heat pump
02/1980
02/12/1980US4187899 Method and apparatus for exchanging heat between fluids
02/12/1980US4187688 Solar powered intermittent cycle heat pump
01/1980
01/23/1980EP0007143A1 Apparatus and method for cycling a material in hydride/dehydride systems
01/15/1980US4183227 Heat pump
01/09/1980EP0006612A2 Vapor generating and recovering apparatus
01/01/1980CA1068917A Apparatus for the recovery of useful heat from refrigeration gases
12/1979
12/25/1979US4179902 Hot water system and condensing unit therefor
12/18/1979US4178987 Moving bed hydride/dehydride systems
12/18/1979US4178769 System for producing refrigeration and a heated liquid and control therefor
12/18/1979CA1068182A1 Hot water system
12/18/1979CA1068119A1 Process and equipment for transforming heat at a relatively low temperature into power or energy
12/12/1979EP0005825A1 Energy conversion method and system
12/11/1979US4177651 Apparatus and method of heating and cooling
12/04/1979US4176525 Combined environmental and refrigeration system
11/1979
11/20/1979CA1066525A2 Coordinated heat pump system
11/13/1979CA1066073A1 Fuel fired supplementary heater for heat pump
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