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Class Information
Number: 62/81
Name: Refrigeration > Processes > Defrosting or frost inhibiting > By utilizing working fluid of refrigeration producer
Description: Processes accomplished by utilizing a fluid used in the refrigeration process.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7331189 |
Cooling device |
Feb. 19, 2008 |
| 7302803 |
Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigerant unit |
Dec. 4, 2007 |
| 7247254 |
Antifreeze composition and method |
Jul. 24, 2007 |
| 7178346 |
Constant temperature refrigeration system for extensive temperature range application and control method thereof |
Feb. 20, 2007 |
| 7171817 |
Heat exchanger liquid refrigerant defrost system |
Feb. 6, 2007 |
| 7111472 |
Circuit apparatus and configurations for refrigeration systems |
Sep. 26, 2006 |
| 7043938 |
Method of thawing a cryogenic unit |
May. 16, 2006 |
| 6983613 |
High-speed defrost refrigeration system |
Jan. 10, 2006 |
| 6931880 |
Method and arrangement for defrosting a vapor compression system |
Aug. 23, 2005 |
| 6883334 |
Cold plate temperature control method and apparatus |
Apr. 26, 2005 |
| 6854277 |
Quiet ice making apparatus |
Feb. 15, 2005 |
| 6807813 |
Refrigeration defrost system |
Oct. 26, 2004 |
| 6775993 |
High-speed defrost refrigeration system |
Aug. 17, 2004 |
| 6745583 |
Defrosting apparatus of air conditioner and method thereof |
Jun. 8, 2004 |
| 6701729 |
Device and method for operating a refrigeration cycle without evaporator icing |
Mar. 9, 2004 |
| 6666043 |
Dewfall preventing device of refrigerator |
Dec. 23, 2003 |
| 6588221 |
Refrigeration system with dedicated compressor for hot gas defrost |
Jul. 8, 2003 |
| 6321543 |
Method for protecting compressors used in chillers and/or heat pumps |
Nov. 27, 2001 |
| 6286322 |
Hot gas defrost refrigeration system |
Sep. 11, 2001 |
| 6283738 |
Package-type scroll compressor |
Sep. 4, 2001 |
| 6233951 |
Heating, cooling and de-humidification system for buildings |
May. 22, 2001 |
| 6170270 |
Refrigeration system using liquid-to-liquid heat transfer for warm liquid defrost |
Jan. 9, 2001 |
| 6094925 |
Crossover warm liquid defrost refrigeration system |
Aug. 1, 2000 |
| 6012294 |
Air conditioner control method and apparatus of the same |
Jan. 11, 2000 |
| 6000231 |
Reverse liquid defrost apparatus and method |
Dec. 14, 1999 |
| 5941085 |
Refrigerator having an apparatus for defrosting |
Aug. 24, 1999 |
| 5921092 |
Fluid defrost system and method for secondary refrigeration systems |
Jul. 13, 1999 |
| 5904047 |
Air conditioner control apparatus and method therefor |
May. 18, 1999 |
| 5890368 |
Dehumidifier |
Apr. 6, 1999 |
| 5867993 |
Refrigerant reservoir and heat exchanger unit for a refrigerated counter system |
Feb. 9, 1999 |
| 5865033 |
Method and device for cooling gases |
Feb. 2, 1999 |
| 5845502 |
Heat pump having improved defrost system |
Dec. 8, 1998 |
| 5809789 |
Refrigeration module |
Sep. 22, 1998 |
| 5771699 |
Three coil electric heat pump |
Jun. 30, 1998 |
| 5758507 |
Heat pump defrost control |
Jun. 2, 1998 |
| 5755104 |
Heating and cooling systems incorporating thermal storage, and defrost cycles for same |
May. 26, 1998 |
| 5729985 |
Air conditioning apparatus and method for air conditioning |
Mar. 24, 1998 |
| 5727453 |
Apparatus and method for thawing frozen food product |
Mar. 17, 1998 |
| 5727393 |
Multi-stage cooling system for commerical refrigeration |
Mar. 17, 1998 |
| 5715689 |
Evaporator for combination refrigerator/freezer |
Feb. 10, 1998 |
| 5709090 |
Refrigerating system and operating method thereof |
Jan. 20, 1998 |
| 5669222 |
Refrigeration passive defrost system |
Sep. 23, 1997 |
| 5664429 |
Air-conditioning device for electric automobiles |
Sep. 9, 1997 |
| 5553457 |
Cooling device |
Sep. 10, 1996 |
| 5528908 |
Blocked fan detection system for heat pump |
Jun. 25, 1996 |
| 5507154 |
Self-calibrating defrost controller |
Apr. 16, 1996 |
| 5440890 |
Blocked fan detection system for heat pump |
Aug. 15, 1995 |
| 5406805 |
Tandem refrigeration system |
Apr. 18, 1995 |
| 5385028 |
Method of odor elimination on A/C heat pump systems |
Jan. 31, 1995 |
| 5315836 |
Air cooling unit having a hot gas defrost circuit |
May. 31, 1994 |
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