|
| US4014181 | 22 Oct 1975 | 29 Mar 1977 | | Air conditioning methods and apparatus |
| US4110998 | 27 May 1977 | 5 Sep 1978 | | Apparatus for detecting and removing contaminants from a refrigeration system |
| US4261178 | 19 Ene 1979 | 14 Abr 1981 | Robinair Manufacturing Corporation | Environmental protection refrigeration disposal and charging system |
| US4285206 | 5 Feb 1979 | 25 Ago 1981 | Draf Tool Co., Inc. | Automatic refrigerant recovery, purification and recharge apparatus |
| US4363222 | 19 Nov 1980 | 14 Dic 1982 | Robinair Manufacturing Corporation | Environmental protection refrigerant disposal and charging system |
| US4364236 | 1 Dic 1980 | 21 Dic 1982 | Robinair Manufacturing Corporation | Refrigerant recovery and recharging system |
| US4441330 | 29 Jul 1982 | 10 Abr 1984 | Robinair Manufacturing Corporation | Refrigerant recovery and recharging system |
| US4476688 | 18 Feb 1983 | 16 Oct 1984 | | Refrigerant recovery and purification system |
| US4516603 | 29 Jun 1983 | 14 May 1985 | | Control armature inserted in the flow route of a system for transferring pressure media in a gaseous and/or liquid gaseous state |
| US4539817 | 23 Dic 1983 | 10 Sep 1985 | | Refrigerant recovery and charging device |
| US4646527 | 22 Oct 1985 | 3 Mar 1987 | | Refrigerant recovery and purification system |
| US4745772 | 20 Abr 1987 | 24 May 1988 | | Air conditioner auxiliary filter/drier refrigerant and chemical additive transfer device |
| US4766733 | 19 Oct 1987 | 30 Ago 1988 | | Refrigerant reclamation and charging unit |
| US4768347 | 4 Nov 1987 | 6 Sep 1988 | Kent-Moore Corporation | Refrigerant recovery and purification system |
| US4809515 | 4 Abr 1988 | 7 Mar 1989 | | Open cycle cooled refrigerant recovery apparatus |
| US4809520 | 9 Jun 1988 | 7 Mar 1989 | Kent-Moore Corporation | Refrigerant recovery and purification system |
| US4862699 | 29 Sep 1987 | 5 Sep 1989 | | Method and apparatus for recovering, purifying and separating refrigerant from its lubricant |
| US4903499 | 11 Oct 1988 | 27 Feb 1990 | High Frequency Products, Inc. | Refrigerant recovery system |
| US4909042 | 1 Abr 1988 | 20 Mar 1990 | Murray Corporation | Air conditioner charging station with same refrigerant reclaiming and liquid refrigerant return and method |
| US4922973 | 17 Nov 1988 | 8 May 1990 | Coil Matic, Inc. | Collecting vessels for collecting refrigerants from heat exchange systems and methods |
| US4934390 | 15 Dic 1988 | 19 Jun 1990 | Thermo King Corporation | Methods and apparatus for cleaning refrigeration equipment |
| US4938031 | 3 Mar 1989 | 3 Jul 1990 | Kent-Moore Corporation | Refrigerant recovery and purification system |
| US4939905 | 4 Dic 1989 | 10 Jul 1990 | Kent-Moore Corporation | Recovery system for differing refrigerants |
| US4942741 | 3 Jul 1989 | 24 Jul 1990 | | Refrigerant recovery device |
| US4967567 | 1 Abr 1988 | 6 Nov 1990 | Murray Corporation | System and method for diagnosing the operation of air conditioner systems |
| US4981020 | 2 Feb 1990 | 1 Ene 1991 | | Apparatus for recovering refrigerant |
| US4982576 | 10 Dic 1987 | 8 Ene 1991 | Murray Corporation | Air conditioner charging station with same refrigerant return and method |
| US4993461 | 16 Nov 1989 | 19 Feb 1991 | Taisei Kabushiki Kaisha | Chlorofluorocarbon recovery device |
| US4996848 | 28 Sep 1989 | 5 Mar 1991 | Whirlpool Corporation | Method and apparatus for recovering refrigerants from home refrigeration systems |
| US4998416 | 14 Oct 1988 | 12 Mar 1991 | | Refrigerant reclaim method and apparatus |
| US5020331 | 9 Feb 1990 | 4 Jun 1991 | National Refrigeration Products, Inc. | Refrigerant reclamation system |
| US5022230 | 31 May 1990 | 11 Jun 1991 | | Method and apparatus for reclaiming a refrigerant |
| US5024061 | 12 Dic 1989 | 18 Jun 1991 | Terrestrial Engineering Corporation | Recovery processing and storage unit |
| US5025633 | 31 Jul 1990 | 25 Jun 1991 | | CFC recycling system |
| US5038578 | 24 May 1990 | 13 Ago 1991 | Kent-Moore Corporation | Refrigerant recovery and purification system |
| US5046320 | 9 Feb 1990 | 10 Sep 1991 | National Refrigeration Products | Liquid refrigerant transfer method and system |
| US5050388 | 4 Jun 1990 | 24 Sep 1991 | American Patent Group | Reclaiming of refrigerant fluids to make same suitable for reuse |
| US5058631 | 16 Ago 1989 | 22 Oct 1991 | Ashland Oil, Inc. | Flexible gas salvage containers and process for use |
| US5067325 | 24 Jul 1990 | 26 Nov 1991 | Clas Ove Olsson | Method and arrangement for pumping refrigerants |
| US5067514 | 24 Ago 1990 | 26 Nov 1991 | | Apparatus for tapping a fluid through a wall |
| US5072594 | 5 Oct 1990 | 17 Dic 1991 | | Method and apparatus for passive refrigerant retrieval and storage |
| US5088291 | 18 Ene 1991 | 18 Feb 1992 | Squires Enterprises | Apparatus for passive refrigerant retrieval and storage |
| US5088526 | 7 Dic 1989 | 18 Feb 1992 | | Method for disposal of aerosol spray containers |
| US5090211 | 12 Mar 1990 | 25 Feb 1992 | ReKlame, Inc. | Refrigerant recovery and recycling system |
| US5123259 | 17 Dic 1990 | 23 Jun 1992 | B M, Inc. | Refrigerant recovery system |
| US5138847 | 27 Jul 1990 | 18 Ago 1992 | Ozone Saver Industries | Refrigerant recovery and processing apparatus and methods |
| US5146760 | 17 Jun 1991 | 15 Sep 1992 | Carrier Corporation | Method and apparatus for compressor protection in a refrigerant recovery system |
| US5146761 | 17 Jun 1991 | 15 Sep 1992 | Carrier Corporation | Method and apparatus for recovering refrigerant |
| US5157936 | 25 Jul 1991 | 27 Oct 1992 | | Method and apparatus for reclaiming refrigerant |
| US5163462 | 22 Ago 1991 | 17 Nov 1992 | | Apparatus for tapping a fluid through a wall |
| US5167126 | 12 Dic 1990 | 1 Dic 1992 | CJS Enterprises, Inc. | Refrigerant recovery and recycling assembly |
| US5168721 | 28 Mar 1991 | 8 Dic 1992 | K-Whit Tools, Inc. | Refrigerant recovery device |
| US5170632 | 26 Nov 1990 | 15 Dic 1992 | National Refrigeration Products | Transportable refrigerant transfer unit and methods of using the same |
| US5176187 | 18 Oct 1990 | 5 Ene 1993 | Ashland Oil, Inc. | Flexible gas salvage containers and process for use |
| US5186017 | 22 Jun 1992 | 16 Feb 1993 | K-Whit Tools, Inc. | Refrigerant recovery device |
| US5189882 | 27 Ene 1992 | 2 Mar 1993 | B M, Inc. | Refrigerant recovery method |
| US5214927 | 13 Mar 1992 | 1 Jun 1993 | | Method and apparatus for passive refrigerant and storage |
| US5222369 | 31 Dic 1991 | 29 Jun 1993 | K-Whit Tools, Inc. | Refrigerant recovery device with vacuum operated check valve |
| US5226300 | 17 Ago 1992 | 13 Jul 1993 | Ozone Environmental Industries, Inc. | Refrigerant recycling apparatus, method and system |
| US5231841 | 19 Dic 1991 | 3 Ago 1993 | | Refrigerant charging system and control system therefor |
| US5235821 | 31 Dic 1992 | 17 Ago 1993 | Micropump Corporation | Method and apparatus for refrigerant recovery |
| US5247802 | 10 Oct 1991 | 28 Sep 1993 | National Refrigeration Products | Method for recovering refrigerant |
| US5282366 | 14 Abr 1992 | 1 Feb 1994 | National Refrigeration Products, Inc. | Transportable refrigerant transfer unit and methods of using the same |
| US5293756 | 26 Feb 1991 | 15 Mar 1994 | Whirlpool Corporation | Method and apparatus for recovering refrigerants from home refrigeration systems |
| US5303559 | 2 Abr 1993 | 19 Abr 1994 | Micropump Corporation | Method and apparatus for refrigerant recovery |
| US5317903 | 26 Jul 1993 | 7 Jun 1994 | K-Whit Tools, Inc. | Refrigerant charging system controlled by charging pressure change rate |
| US5335511 | 9 Sep 1993 | 9 Ago 1994 | | Refrigerant release prevention system |
| US5335512 | 7 Dic 1992 | 9 Ago 1994 | K-Whit Tools, Inc. | Refrigerant recovery device |
| US5367888 | 29 Dic 1992 | 29 Nov 1994 | Environmental Products Amalgamated Pty. Ltd. | Apparatus for servicing refrigeration systems |
| US5392610 | 2 Dic 1993 | 28 Feb 1995 | Whirlpool Corporation | Method and apparatus for recovering refrigerants from home refrigeration systems |
| US5408840 | 5 Abr 1994 | 25 Abr 1995 | | Refrigerant overpressure release recovery system with compressor auto shutdown |
| US5442930 | 22 Oct 1993 | 22 Ago 1995 | | One step refrigerant recover/recycle and reclaim unit |
| US5481883 | 20 Oct 1994 | 9 Ene 1996 | | Method and apparatus for reduction of refrigerant gases escaping from refrigeration systems |
| US5533359 | 6 Abr 1994 | 9 Jul 1996 | Environmental Products Amalgamated Pty. Ltd. | Apparatus for servicing refrigeration systems |
| US5606862 | 18 Ene 1996 | 4 Mar 1997 | National Refrigeration Products | Combined refrigerant recovery, evacuation and recharging apparatus and method |
| US5678415 | 18 Ene 1996 | 21 Oct 1997 | National Refrigeration Products | Refrigerant recovery apparatus |
| US5685161 | 25 Ene 1996 | 11 Nov 1997 | National Refrigeration Products | Refrigerant recovery and recycling apparatus |
| US5758506 | 3 Jul 1996 | 2 Jun 1998 | White Industries, LLC | Method and apparatus for servicing automotive refrigeration systems |
| US5761924 | 18 Ene 1996 | 9 Jun 1998 | National Refrigeration Products | Refrigerant recycling apparatus and method |
| US6408637 | 1 Nov 1999 | 25 Jun 2002 | Century Mfg. Co. | Apparatus and method for recovering and recycling refrigerant |
| US6619065 | 1 Nov 2002 | 16 Sep 2003 | | Heating ventilating and air conditioning worker's servicing cart |
| US7073346 | 19 Ago 2004 | 11 Jul 2006 | Ritchie Engineering Company, Inc. | Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor |
| US7159412 | 15 Dic 2004 | 9 Ene 2007 | Ritchie Engineering Company, Inc. | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus |
| US7310965 | 6 Oct 2005 | 25 Dic 2007 | Ritchie Engineering Company, Inc. | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus |
| US7428822 | 10 Jul 2006 | 30 Sep 2008 | Ritchie Engineering Company, Inc. | Vacuum sensor |
