| Patent | Date |
|---|
Control scheme for multiple operating parameters in economized refrigerant system
Grant 7,997,091 - Lifson , et al. August 16, 2 | 2011-08-16 |
Automated drive for fan and refrigerant system
Grant 7,854,136 - Taras , et al. December 21, 2 | 2010-12-21 |
Valve for preventing unpowered reverse run at shutdown
Grant 7,197,890 - Taras , et al. April 3, 2 | 2007-04-03 |
Automated drive for fan and refrigerant system
App 20070033957 - Taras; Michael F. ; et al. | 2007-02-15 |
Flash tank for heat pump in heating and cooling modes of operation
Grant 7,137,270 - Lifson , et al. November 21, 2 | 2006-11-21 |
Fluid diode expansion device for heat pumps
Grant 7,114,348 - Lifson , et al. October 3, 2 | 2006-10-03 |
Refrigerant subcooling by condensate
Grant 7,013,658 - Dobmeier , et al. March 21, 2 | 2006-03-21 |
Valve for preventing unpowered reverse run at shutdown
App 20060056989 - Taras; Michael F. ; et al. | 2006-03-16 |
Refrigerant system with controlled refrigerant charge amount
Grant 7,010,927 - Lifson , et al. March 14, 2 | 2006-03-14 |
Fluid diode expansion device for heat pumps
App 20060048537 - Lifson; Alexander ; et al. | 2006-03-09 |
Dual economizer heat exchangers for heat pump
Grant 7,000,423 - Lifson , et al. February 21, 2 | 2006-02-21 |
Refrigerant system pressure control for storage and transportation
Grant 6,996,998 - Lifson , et al. February 14, 2 | 2006-02-14 |
Flash tank for heat pump in heating and cooling modes of operation
App 20060010899 - Lifson; Alexander ; et al. | 2006-01-19 |
Monitoring refrigerant charge
Grant 6,981,384 - Dobmeier , et al. January 3, 2 | 2006-01-03 |
Control of multi-circuit economized system
Grant 6,966,193 - Dobmeier , et al. November 22, 2 | 2005-11-22 |
Expansion device with low refrigerant charge monitoring
Grant 6,964,173 - Dobmeier , et al. November 15, 2 | 2005-11-15 |
Control scheme for multiple operating parameters in economized refrigerant system
App 20050235689 - Lifson, Alexander ; et al. | 2005-10-27 |
Refrigerant cycle with tandem economized and conventional compressors
Grant 6,955,058 - Taras , et al. October 18, 2 | 2005-10-18 |
Control scheme and method for dehumidification systems at low ambient conditions
Grant 6,955,057 - Taras , et al. October 18, 2 | 2005-10-18 |
Monitoring refrigerant charge
App 20050204756 - Dobmeier, Thomas J. ; et al. | 2005-09-22 |
Tandem compressors with economized operation
Grant 6,928,828 - Taras , et al. August 16, 2 | 2005-08-16 |
Control of multi-circuit economized system
App 20050172663 - Dobmeier, Thomas J. ; et al. | 2005-08-11 |
Oil return control in refrigerant system
Grant 6,925,822 - Lifson , et al. August 9, 2 | 2005-08-09 |
Refrigerant Cycle With Tandem Economized And Conventional Compressors
App 20050166617 - Taras, Michael F. ; et al. | 2005-08-04 |
Refrigerant subcooling by condensate
App 20050166614 - Dobmeier, Thomas J. ; et al. | 2005-08-04 |
Tandem Compressors With Economized Operation
App 20050160761 - Taras, Michael F. ; et al. | 2005-07-28 |
Refrigerant system pressure control for storage and transportation
App 20050132728 - Lifson, Alexander ; et al. | 2005-06-23 |
Loss of refrigerant charge and expansion valve malfunction detection
App 20050126190 - Lifson, Alexander ; et al. | 2005-06-16 |
Oil return control in refrigerant system
App 20050126193 - Lifson, Alexander ; et al. | 2005-06-16 |
Multiple refrigerant circuits with single economizer heat exchanger
Grant 6,895,781 - Dobmeier , et al. May 24, 2 | 2005-05-24 |
Combined expansion device and four-way reversing valve in economized heat pumps
Grant 6,892,553 - Lifson , et al. May 17, 2 | 2005-05-17 |
Refrigerant system with controlled refrigerant charge amount
App 20050097904 - Lifson, Alexander ; et al. | 2005-05-12 |
Dual economizer heat exchangers for heat pump
App 20050086969 - Lifson, Alexander ; et al. | 2005-04-28 |
Combined Expansion Device And Four-way Reversing Valve In Economized Heat Pumps
App 20050086970 - Lifson, Alexander ; et al. | 2005-04-28 |
Expansion device with low refrigerant charge monitoring
App 20050086951 - Dobmeier, Thomas J. ; et al. | 2005-04-28 |
Multiple Refrigerant Circuits With Single Economizer Heat Exchanger
App 20050086975 - Dobmeier, Thomas J. ; et al. | 2005-04-28 |
Control of air conditioning system with limited number of discrete inputs
App 20050011207 - Porter, Kevin J. ; et al. | 2005-01-20 |
Humidity control utilizing heat pump concept
App 20040261429 - Dobmeier, Thomas J. ; et al. | 2004-12-30 |
Control scheme and method for dehumidification systems at low ambient conditions
App 20040261436 - Taras, Michael F. ; et al. | 2004-12-30 |
Dual reversing valves for economized heat pump
Grant 6,817,205 - Lifson , et al. November 16, 2 | 2004-11-16 |
Humidity control method and scheme for vapor compression system with multiple circuits
Grant 6,705,093 - Taras , et al. March 16, 2 | 2004-03-16 |
Humidity control and efficiency enhancement in vapor compression system
Grant 6,701,723 - Dobmeier , et al. March 9, 2 | 2004-03-09 |
System and method for multi-stage dehumidification
Grant 6,694,756 - Taras , et al. February 24, 2 | 2004-02-24 |
Humidity and temperature control in vapor compression system
Grant 6,672,087 - Taras , et al. January 6, 2 | 2004-01-06 |
Performance enhancement of vapor compression system
Grant 6,658,867 - Taras , et al. December 9, 2 | 2003-12-09 |
Test for the automated detection of leaks between high and low pressure sides of a refrigeration system
Grant 6,205,798 - Porter , et al. March 27, 2 | 2001-03-27 |
Control algorithm for maintenance of discharge pressure
Grant 6,170,277 - Porter , et al. January 9, 2 | 2001-01-09 |
Adaptive pretrip selection
Grant 6,067,805 - Porter , et al. May 30, 2 | 2000-05-30 |
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