| Patents for F25B 13 - Compression machines, plant, or systems, with reversible cycle (6,597) |
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| 01/22/1980 | US4184537 Selective heating and cooling apparatus |
| 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 |
| 01/01/1980 | US4180988 Bi-directional filter-drier for heat pumps |
| 01/01/1980 | CA1068919A Heat pump system selectively operable in a cascade mode and method of operation |
| 01/01/1980 | CA1068918A Heat pump frost control system |
| 01/01/1980 | CA1068917A Apparatus for the recovery of useful heat from refrigeration gases |
| 12/25/1979 | US4179894 Dual source heat pump |
| 12/18/1979 | US4178772 Heat pump system |
| 12/04/1979 | US4177145 Two-way filter-drier for heat pump systems |
| 11/28/1979 | EP0005599A1 Two-way filter-drier |
| 11/13/1979 | US4173865 Auxiliary coil arrangement |
| 11/13/1979 | CA1066073A1 Fuel fired supplementary heater for heat pump |
| 10/23/1979 | US4171622 Heat pump including auxiliary outdoor heat exchanger acting as defroster and sub-cooler |
| 10/23/1979 | US4171621 Freeze protection device in heat pump system |
| 10/02/1979 | US4169554 Solar energy system with heat pump assistance |
| 10/02/1979 | CA1063370A1 Heat pump system |
| 09/18/1979 | US4167965 Integral water-refrigerant-air heat exchange system |
| 08/21/1979 | US4165037 Apparatus and method for combined solar and heat pump heating and cooling system |
| 07/31/1979 | CA1059329A1 Two stage compressor heating |
| 07/10/1979 | CA1057967A2 Air source heat pump with multiple slide rotary screw compressor/expander |
| 07/10/1979 | CA1057966A1 Air source heat pump with multiple slide rotary screw compressor/expander |
| 06/26/1979 | US4158950 Heat pump defrost system |
| 06/12/1979 | US4157649 Multiple compressor heat pump with coordinated defrost |
| 05/22/1979 | CA1054811A1 Heat pump control system |
| 05/16/1979 | EP0001901A1 Air conditioning units with reversible cycle closed-circuit compression refrigeration systems |
| 05/08/1979 | US4153105 Reversible latent heat storage method, and reversible latent heat accumulator |
| 04/17/1979 | US4149389 Heat pump system selectively operable in a cascade mode and method of operation |
| 04/10/1979 | US4148436 Solar augmented heat pump system with automatic staging reciprocating compressor |
| 04/10/1979 | CA1052112A1 Combination motor cooler and storage coil for heat pump |
| 04/10/1979 | CA1052111A1 Combination motor cooler and storage coil for heat pump |
| 04/03/1979 | CA1051680A1 Rotary thermodynamic apparatus and method |
| 03/27/1979 | US4146085 Diagnostic system for heat pump |
| 03/13/1979 | US4143707 Air conditioning apparatus including a heat pump |
| 03/06/1979 | US4142576 Heat pump system with improved heat transfer |
| 02/13/1979 | US4138859 Split heat pump outdoor fan arrangement |
| 02/06/1979 | US4137726 Capacity control system of compressor for heat-pump refrigeration unit |
| 02/06/1979 | US4137725 Compressor control for a reversible heat pump |
| 01/23/1979 | CA1046783A1 Heat pump frost control system |
| 01/02/1979 | CA1045394A1 Heat pump system with improved heat transfer |
| 01/02/1979 | CA1045393A1 Air-conditioning apparatus with booster heat exchanger |
| 12/19/1978 | CA1044476A1 Combined loop heat pump |
| 11/28/1978 | US4127364 Heat pump unit |
| 11/14/1978 | US4125469 Bi-directional filter drier |
| 10/31/1978 | CA1041312A1 Loss heat suppression apparatus and method for heat pump |
| 10/17/1978 | CA1040445A1 Heat pump with high efficiency reversible helical screw rotary compressor |
| 09/12/1978 | US4112705 Fuel fired supplementary heater for heat pump |
| 09/12/1978 | CA1038178A1 Movable expansion valve |
| 08/15/1978 | US4106308 Heating and cooling system with capillary control means |
| 08/15/1978 | US4106307 Reverse-flow air conditioner |
| 08/15/1978 | CA1036376A1 Reversible latent heat storage method, and reversible latent heat accumulator |
| 08/08/1978 | US4105064 Two stage compressor heating |
| 08/08/1978 | US4104890 Air conditioning apparatus |
| 08/01/1978 | US4104044 Bidirectional flow filter-drier assembly |
| 07/25/1978 | US4102391 Heat pump frost control system |
| 07/25/1978 | US4102390 Control system for heat pump and furnace combination |
| 07/25/1978 | US4102389 Heat pump control system |
| 07/18/1978 | US4100763 Multi-source heat pump HVAC system |
| 07/18/1978 | US4100762 Integrated controls assembly |
| 07/04/1978 | US4098092 Heating system with water heater recovery |
| 06/13/1978 | US4094165 Loss heat suppression apparatus and method for heat pump |
| 05/30/1978 | US4091863 Reversible latent heat storage method, and reversible latent heat accumulator |
| 04/25/1978 | US4086072 Air source heat pump with multiple slide rotary screw compressor/expander |
| 01/03/1978 | US4066118 Air conditioning system |
| 01/03/1978 | US4065938 Air-conditioning apparatus with booster heat exchanger |
| 11/22/1977 | US4058988 Heat pump system with high efficiency reversible helical screw rotary compressor |
| 11/15/1977 | US4057977 Reverse cycle heat pump circuit |
| 11/15/1977 | US4057976 Heat exchanger |
| 11/15/1977 | US4057975 Heat pump system |
| 11/01/1977 | US4055964 Heat pump system |
| 11/01/1977 | US4055963 Heating system |
| 10/25/1977 | US4055056 Reversible refrigerant system and four-way reversing valve therefor or the like |
| 09/06/1977 | US4045977 Self operating excess refrigerant storage system for a heat pump |
| 09/06/1977 | US4045975 Combination motor cooler and storage coil for heat pump |
| 09/06/1977 | US4045974 Combination motor cooler and storage coil for heat pump |
| 08/16/1977 | US4042012 Heat pump system with improved heat transfer |
| 06/21/1977 | US4030315 Reverse cycle heat pump |
| 06/21/1977 | US4030312 Heat pumps with solar heat source |
| 06/14/1977 | US4029580 Bidirectional flow filter-drier |
| 06/07/1977 | US4027497 Freeze-up prevention device for a heat pump |
| 05/31/1977 | US4026299 Cooling and heating apparatus |
| 05/24/1977 | US4024722 Heat pump frost control system |
| 04/26/1977 | US4019338 Heating and cooling system |
| 04/12/1977 | US4017286 Heat pump suction line vent |
| 03/22/1977 | US4012920 Heating and cooling system with heat pump and storage |
| 12/07/1976 | US3995809 Arrangement for air-conditioning of one or more rooms |
| 11/23/1976 | US3993121 Heat pump conversion system for electric furnace |
| 11/23/1976 | US3992898 Movable expansion valve |
| 09/07/1976 | US3978684 Refrigeration system |
| 08/31/1976 | US3977210 Heat exchanger applicable more particularly to compressor heat pumps |
| 08/03/1976 | US3972347 Reversible refrigerant system and four-way reversing valve therefor or the like |
| 06/29/1976 | US3965696 Crop drying (food preserving) apparatus |
| 06/29/1976 | US3965694 Method and device for thermally air-conditioning a room, a vat or the like |
| 04/27/1976 | US3952537 Reversing valve means for use with a reversible refrigerating cycle system |
| 04/20/1976 | US3950962 System for defrosting in a heat pump |
| 02/17/1976 | US3938352 Water to air heat pump employing an energy and condensate conservation system |
| 02/17/1976 | US3938349 Refrigerating apparatus with superheat control |