Reversible Refrigerating Systems
|
patent
|
March 1961 |
Water to Air Heat Pump Utilizing Heat Recovery Water Heating
|
patent
|
November 1975 |
Water to air heat pump employing an energy and condensate conservation system
|
patent
|
February 1976 |
Heat reclaim for refrigeration systems
|
patent
|
November 1976 |
Compact heating and cooling system
|
patent
|
February 1978 |
Heating system with water heater recovery
|
patent
|
July 1978 |
System for producing refrigeration and a heated liquid and control therefor
|
patent
|
January 1979 |
Apparatus and method for combined solar and heat pump heating and cooling system
|
patent
|
August 1979 |
Dual source heat pump
|
patent
|
December 1979 |
Energy conserving vapor compression air conditioning system
|
patent
|
December 1980 |
Heat pump system
|
patent
|
December 1980 |
Air conditioning system
|
patent
|
February 1981 |
Refrigeration circuit for heat pump water heater and control therefor
|
patent
|
November 1981 |
Heat pump water heater circuit
|
patent
|
August 1983 |
Reversible cycle heating and cooling system
|
patent
|
October 1983 |
Combination refrigerant circuit and hot water preheater
|
patent
|
January 1985 |
Reversible cycle heating and cooling system
|
patent
|
January 1985 |
Heat pump refrigeration circuit with liquid heating capability
|
patent
|
July 1985 |
Reversible cycle heating and cooling system
|
patent
|
November 1985 |
Integrated heat pump water heater
|
patent
|
July 1986 |
Residential heating, cooling and energy management system
|
patent
|
February 1987 |
Hot water heating and defrost in a heat pump circuit
|
patent
|
March 1987 |
Triple integrated heat pump system
|
patent
|
March 1987 |
Three function heat pump system
|
patent
|
September 1987 |
Refrigeration cycle apparatus
|
patent
|
August 1988 |
Heat pump system with hot water defrost
|
patent
|
August 1988 |
Updraft integrated heat pump
|
patent
|
October 1988 |
Air conditioner with heat regeneration cycle
|
patent
|
January 1989 |
Refrigerator with cold accumulation system
|
patent
|
June 1989 |
Three function heat pump system with one way receiver
|
patent
|
January 1990 |
Combined heat pump and domestic water heating circuit
|
patent
|
May 1990 |
Optimal control system for refrigeration-coupled thermal energy storage
|
patent
|
July 1990 |
Refrigeration plant and method of controlling a refrigeration plant
|
patent
|
October 1990 |
Apparatus and method for low refrigerant detection
|
patent
|
September 1991 |
Ground source air conditioning system comprising a conduit array for de-icing a nearby surface
|
patent
|
January 1992 |
Automatic refrigerant charge variation means
|
patent
|
August 1992 |
Air conditioning system with thermal storage cycle control
|
patent
|
November 1992 |
Add on heat pump swimming pool heater control
|
patent
|
February 1993 |
Combined multi-modal air conditioning apparatus and negative energy storage system
|
patent
|
May 1993 |
Refrigerant handling system with auxiliary condenser flow control
|
patent
|
November 1993 |
Apparatus for controlling space heating and/or space cooling and water heating
|
patent
|
December 1993 |
Refrigerant management control and method for a thermal energy storage system
|
patent
|
May 1994 |
Ground source heat pump system comprising modular subterranean heat exchange units with concentric conduits
|
patent
|
August 1994 |
Ground source heat pump system comprising modular subterranean heat exchange units with multiple parallel secondary conduits
|
patent
|
December 1994 |
Multi-function self-contained heat pump system with microprocessor control
|
patent
|
November 1995 |
Air conditioning system with thermal energy storage and load leveling capacity
|
patent
|
November 1995 |
Ground source heat pump system comprising modular subterranean heat exchange units with multiple parallel secondary conduits
|
patent
|
December 1995 |
Convertible air conditioning unit usable as water heater
|
patent
|
March 1996 |
Subterranean heat exchange units comprising multiple secondary conduits and multi-tiered inlet and outlet manifolds
|
patent
|
July 1996 |
Variable capacity staged cooling direct expansion geothermal heat pump
|
patent
|
October 1996 |
Ground source heat pump system
|
patent
|
July 1997 |
Heat pump with liquid refrigerant reservoir
|
patent
|
August 1997 |
Refrigerant charge variation mechanism
|
patent
|
July 1998 |
Heat transfer system
|
patent
|
September 1998 |
Heat exchanger for heat transfer system
|
patent
|
May 1999 |
Heat pump energy management system
|
patent
|
July 2000 |
Heat transfer system
|
patent
|
July 2001 |
Hot gas defrost refrigeration system
|
patent
|
September 2001 |
Multipurpose air conditioning apparatus
|
patent
|
May 2002 |
Heat pump with supplemental heat source
|
patent
|
September 2003 |
Adaptive auxiliary condensing device and method
|
patent
|
March 2005 |
Refrigerant circuit and heat pump type hot water supply apparatus
|
patent
|
March 2007 |
Water-cooled air conditioning system using condenser water regeneration for precise air reheat in dehumidifying mode
|
patent
|
March 2011 |
Refrigerant charge control in a heat pump system with water heater
|
patent
|
November 2011 |
Heat pump apparatus
|
patent-application
|
September 2004 |
Absorption-type air conditioner system
|
patent-application
|
January 2005 |
Water condenser
|
patent-application
|
May 2006 |
Water-Cooled Air Conditioning System Using Condenser Water Regeneration for Precise Air Reheat in Dehumidifying Mode
|
patent-application
|
October 2006 |
Freezer apparatus
|
patent-application
|
January 2007 |
Thermal superconductor refrigeration system
|
patent-application
|
September 2007 |
Method and Apparatus for Monitoring and Refrigerant-Cycle Systems
|
patent-application
|
January 2008 |
Heat Pump with Accumulator at Boost Compressor Output
|
patent-application
|
February 2008 |
Heat Pump System with Auxiliary Water Heating
|
patent-application
|
August 2008 |
Refrigerant System With Water Heating
|
patent-application
|
August 2008 |
System for controlled fluid heating using air conditioning waste heat
|
patent-application
|
October 2008 |
Refrigeration Monitoring System and Method
|
patent-application
|
December 2008 |
Refrigerant Charge Control in a Heat Pump System With Water Heater
|
patent-application
|
January 2009 |
Heat pump system having auxiliary water heating and heat exchanger bypass
|
patent-application
|
February 2009 |
Transport refrigeration system
|
patent-application
|
March 2010 |
Cascading Air-Source Heat Pump
|
patent-application
|
April 2010 |
Air Conditioning/Ventilating System
|
patent-application
|
May 2011 |
Hot Water Supply Apparatus Associated with Heat Pump
|
patent-application
|
December 2011 |
Integrated Heat Pump and Water Heating Circuit
|
patent-application
|
May 2014 |