Patents for F25B 45 - Arrangements for charging or discharging refrigerant (2,920)
07/2001
07/03/2001US6253810 Apparatus for detecting leaks in a pressurized air conditioning or refrigeration system
06/2001
06/19/2001US6247325 Apparatus for servicing refrigeration systems
06/13/2001EP1106940A2 Air conditioner
06/12/2001US6244055 Refrigerant recovery and recycling system
06/07/2001WO2001040719A1 An improvement in a refrigeration circuit
06/07/2001DE19958437A1 Evacuation of refrigeration circuits during the manufacture of domestic refrigerators is accelerated by the addition of a getter material to absorb air prior to filling with refrigerant
06/05/2001US6240738 Refrigerant relief device for vehicle air conditioner
05/2001
05/22/2001US6233961 Refrigerator and method of filling it with coolant
05/22/2001US6233950 Device and process for injecting a refrigerant into a product mixer
05/09/2001EP1098129A1 Stem cap for air conditioning service valve
05/01/2001US6223549 Refrigeration cycle device, a method of producing the device, and a method of operating the device
04/2001
04/24/2001US6220041 Method for determining a charging amount of refrigerant for an air conditioner, a method for controlling refrigerant for an air conditioner and an air conditioner
04/19/2001US20010000276 Fluid delivery apparatus and method
04/17/2001US6216473 Method of recovering a coolant, apparatus therefor, tool therefor and three-way valve for recovering a pressurized fluid
04/04/2001EP1025402A4 Isolated refrigerant identifier
04/03/2001US6209338 Systems and methods for controlling refrigerant charge
03/2001
03/28/2001CN1289029A Refrigerant tube device for indoor air conditioner
03/22/2001US20010000050 Method for determining a charging amount of refrigerant for an air conditioner, a method for controlling refrigerant for an air conditioner and an air conditioner
03/20/2001US6202433 Protection system for refrigerant identification detector
03/15/2001DE10018430A1 Combustible refrigeration fluid extraction method for recycling refrigeration appliance has refrigeration fluid drawn into pre-evacuated sealed container at reduced pressure
03/14/2001EP1082563A1 High flow valved fitting
03/13/2001US6199396 Refrigerant pipe unit for room air-conditioner
03/06/2001US6196016 Multiple-dose, flush-through injector
03/06/2001US6196008 Method for taking custody of, transporting and installing air conditioner
02/2001
02/20/2001US6189322 Refrigerant-circulating system, and refrigerant compressor and refrigeration cycle employing the refrigerant compressor
02/13/2001US6186197 Apparatus for charging a pressurized system
02/13/2001US6185945 Isolated refrigerant identifier
01/2001
01/30/2001US6178759 Rupture disk
01/10/2001EP1067340A2 Replacing gas collecting trap for an air conditioner
01/09/2001US6170541 Leak detection dye introduction system and method
01/03/2001CN2413240Y Refrigerant charging recoverer
01/03/2001CN1278906A Pipeline cleaning device and method for refrigerating apparatus
01/03/2001CN1278905A Refrigerant recovering apparatus and refrigerant recovering method
12/2000
12/26/2000US6164080 Apparatus and method for flushing a refrigeration system
12/21/2000WO2000077464A1 A refrigeration sealing system for a refrigeration unit
12/12/2000US6158234 Self-cooled refrigerant recovery system
12/12/2000US6158229 Heat exchanger, method of reusing and recovering refrigerant thereof
12/05/2000US6155066 Injector, methods for using injector, and kit
11/2000
11/30/2000WO2000071948A1 Multiple-dose, flush-through injector
11/22/2000EP1054221A2 Refrigeration system, and method of updating and operating the same
11/21/2000US6148632 Refrigeration cycle apparatus
11/21/2000CA2222632C Refrigerant separation system
11/08/2000CN1272915A Refrigerant regenerating device, refrigerant regenerating method, refrigerator having refrigerant regenerating device, control method for refrigerant circuit or recovery
11/07/2000US6141977 Apparatus and method for recovering volatile refrigerants
10/2000
10/31/2000US6138462 Refrigerant recovery and recharging system with automatic oil drain
10/24/2000US6134911 Compressor for use in refrigerator
10/24/2000US6134899 Refrigerant recovery and recharging system with automatic air purging
10/24/2000US6134896 Background tank fill
10/17/2000US6132495 Passing gas through a venturi cell at a pressure and a flow rate; the cell comprising: a housing having an inlet and an outlet; venturi for reducing the pressure and temperature of the gas in communication with the inlet and outlet of housing
10/04/2000EP1041349A2 Replacing gas apparatus for an air conditioner
10/04/2000EP1041348A2 Method for installing air conditioner
10/04/2000EP1041347A2 Connecting apparatus for installing air conditioner
09/2000
09/19/2000US6119475 Tank unload apparatus
09/05/2000US6112532 Refrigeration system with closed circuit circulation
08/2000
08/23/2000EP1029724A2 Refrigerant relief device for vehicle air conditioner
08/16/2000CN1263245A Absorption type machine with refrigerating agent management system
08/15/2000US6101822 Constant volume air conditioning/heat pump efficiency improvement apparatus
08/09/2000EP1026462A2 Absorption machine with refrigerant management system
08/09/2000EP1025402A2 Isolated refrigerant identifier
08/09/2000CN2391149Y Repair agent filler for air conditioner
08/03/2000WO2000044859A1 Flushing composition
07/2000
07/26/2000EP1022524A1 Apparatus and method for cleaning pipes of refrigerating unit
07/25/2000US6092390 Portable, automatic, oil recovery system
07/18/2000US6089032 Method of retrofitting air conditioner and system therefor
07/12/2000EP1018628A1 Refrigerant recovering apparatus and refrigerant recovering method
06/2000
06/28/2000EP1014015A1 Refrigerant collecting device, refrigerant collecting method, refrigerator having refrigerant collecting device, control method for refrigerant in refrigerant circuit or regeneration device and regeneration method for refrigerant collecting device
06/14/2000CN1053495C Method and apparatus for recovering, reclaiming and filling freon for air conditioner
05/2000
05/30/2000US6067807 Absorption machine with refrigerant management system
05/25/2000WO2000029796A1 Heat transfer device
05/24/2000EP0932803B1 Refrigerant disposal
05/23/2000US6065304 Device and method for vacuumizing an air conditioner having a plurality of compressors and condensers
05/10/2000EP0870138A4 Method and valve for filling fluid system
05/09/2000US6058717 Method for charging refrigerant blend
04/2000
04/27/2000WO2000005541A3 Isolated refrigerant identifier
04/18/2000US6050310 Apparatus for charging a pressurized system
04/18/2000US6050295 High flow valved fitting
03/2000
03/30/2000WO2000017588A1 Single-circuit cooling system
03/28/2000US6041810 Refrigerant charging tool
03/23/2000WO2000016027A1 Cold transportation method
03/23/2000WO2000016025A1 Injector, methods for using injector, and kit
03/23/2000DE19843484A1 Single circuit refrigeration system has selectively connectable reservoir in refrigeration circuit for accommodating refrigerant and at least two evaporators
03/23/2000CA2344500A1 Cold transportation method
03/15/2000CN1247599A Purging method, appts. to be purged and purging appts.
03/14/2000US6035648 Method of charging and recharging a refrigeration system containing a ternary refrigerant
02/2000
02/29/2000US6029472 Refrigerant recycle and reclaim system
02/16/2000EP0979855A1 Method for filling mixed refrigerant
02/16/2000EP0979374A1 A system and a process for supplying fluid in hermetic circuits
02/09/2000EP0978697A1 Method and device for injecting a refrigerant in a product mixing machine
02/09/2000CN1244247A Refrigerator and method of filling in with coolant
02/09/2000CN1243931A Heat exchanger and method for reuse and recovery of refrigerant thereof
02/03/2000WO2000005541A2 Isolated refrigerant identifier
02/02/2000EP0976994A1 Refrigerator and method of filling it with coolant
01/2000
01/27/2000DE19832682A1 Defrosting unit for evaporator of heat pump of air conditioner has line connecting one expansion valve to second expansion valve
01/25/2000US6016661 Refrigerant recovery system
01/04/2000US6010315 Compressor for use in refrigerator
12/1999
12/16/1999WO1999064799A1 Refrigerant collecting device, refrigerant collecting method, refrigerator having refrigerant collecting device, control method for refrigerant in refrigerant circuit or regeneration device and regeneration method for refrigerant collecting device
12/14/1999US6000230 Method for dividing and charging of non-azeotropic mixed refrigerant
12/09/1999WO1999063252A1 High flow valved fitting
12/08/1999EP0962728A1 Purging method, apparatus to be purged and purging apparatus
12/07/1999US5999700 Portable refrigerant supply tank heating unit
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