| Patents for F25B 47 - Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass (3,979) |
|---|
| 07/16/1991 | US5031413 Low-temperature foods preserving case and its temperature control method |
| 07/10/1991 | CN1052939A 空气调节装置 Air conditioning apparatus |
| 07/03/1991 | EP0435487A2 Refrigeration system having a modulation valve which also performs function of compressor throttling valve |
| 06/29/1991 | CA2030413A1 Refrigeration system having a modulation valve which also performs function of compressor throttling valve |
| 06/27/1991 | DE3941713A1 Compressed air cool-drying - uses auxiliary heat exchanger transferring heat from incoming feed gas to emerging dried gas |
| 06/12/1991 | EP0431797A2 Refrigeration |
| 06/05/1991 | CN1051973A Transport refrigeration system having means for enhancing capacity of heating cycle |
| 06/04/1991 | US5020320 Engine driven heat pump system |
| 05/23/1991 | CA2030288A1 Refrigeration |
| 05/21/1991 | US5016447 Oil return for a two-stage compressor having interstage cooling |
| 05/14/1991 | US5014774 Biocidal coated air conditioning evaporator |
| 05/14/1991 | US5014521 Refrigeration system in ice making machine |
| 05/14/1991 | CA1284035C Liquid/gas bypass |
| 04/07/1991 | CA2027057A1 Shockless system and hot gas valve for refrigeration and air conditioning |
| 03/07/1991 | WO1991003143A1 Special ion emitter tip materials and coatings |
| 02/06/1991 | EP0411172A1 Refrigeration device for a plurality of coolant circuits |
| 01/22/1991 | US4986083 Freezer machine |
| 01/01/1991 | US4981023 Air conditioning and heat pump system |
| 12/25/1990 | US4979371 Refrigeration system and method involving high efficiency gas defrost of plural evaporators |
| 12/18/1990 | US4977751 Refrigeration system having a modulation valve which also performs function of compressor throttling valve |
| 12/12/1990 | EP0203961A4 Absorption refrigeration and heat pump system |
| 12/11/1990 | US4976117 Device and process for producing cold and/or heat by solid-gas reaction |
| 12/04/1990 | US4974418 Heat pump defrosting operation |
| 12/04/1990 | US4974417 Heat pump defrosting operation |
| 11/27/1990 | US4972679 Absorption refrigeration and heat pump system with defrost |
| 11/17/1990 | CA2014348A1 Transport refrigeration system with stand-by compressor drive motor also operable as a generator |
| 10/23/1990 | US4964281 Low-temperature showcase |
| 10/17/1990 | EP0392673A2 Transport refrigeration system having means for enhancing the capacity of a heating cycle |
| 10/16/1990 | US4962648 Refrigeration apparatus |
| 10/16/1990 | US4962647 Refrigerating circuit apparatus with two stage compressor and heat storage tank |
| 10/11/1990 | DE3910988A1 Method for controlling heat pumps |
| 10/02/1990 | US4959971 Refrigerant piping system for refrigeration equipment |
| 09/12/1990 | CN1045291A Compressor for heat pump and method of operating said compressor |
| 09/05/1990 | EP0385560A2 Compressor for heat pump and method of operating said compressor |
| 08/28/1990 | US4951477 Air conditioning system |
| 08/28/1990 | US4951473 Heat pump defrosting operation |
| 08/21/1990 | US4949551 Hot gas defrost system for refrigeration systems |
| 08/09/1990 | WO1990008931A1 Hot gas defrost system for refrigeration systems |
| 08/07/1990 | US4945733 Refrigeration |
| 07/31/1990 | US4944158 Method of defrosting a refrigerating circuit for use in cooling a vehicular chamber |
| 07/24/1990 | US4942743 Hot gas defrost system for refrigeration systems |
| 07/18/1990 | EP0378152A2 Performance-optimising method for refrigerant evaporators |
| 06/27/1990 | CN1043383A Method and apparatus for operating refrigeration system |
| 06/13/1990 | EP0292527B1 Closing and injection valve especially for hot gas defrosting in freezing and cooling installations |
| 06/12/1990 | US4932219 Transport refrigeration system with selective receiver tank pressurization |
| 06/05/1990 | US4930322 Advanced heat pump |
| 05/29/1990 | US4928498 Method and device for compression of gases |
| 05/08/1990 | US4922728 Heater plate assembly |
| 05/01/1990 | US4920756 Transport refrigeration system with dehumidifier mode |
| 04/25/1990 | EP0365351A2 Method and apparatus for operating a refrigeration system |
| 04/18/1990 | EP0364239A2 Heat pump defrosting operation |
| 04/18/1990 | EP0364238A2 Heat pump with adaptive frost determination function |
| 04/18/1990 | EP0364237A2 Heat pump with single exterior temperature sensor |
| 04/17/1990 | US4916913 Air conditioning apparatus having two refrigerating circuits in central unit and control method of defrosting the same |
| 04/17/1990 | US4916912 Heat pump with adaptive frost determination function |
| 04/10/1990 | US4914926 Hot gas defrost system for refrigeration systems and apparatus therefor |
| 04/03/1990 | US4912934 Forming corrosion resistance film, of molybfrnum-oxides and iron oxides on inside wall |
| 04/03/1990 | US4912933 Transport refrigeration system having means for enhancing the capacity of a heating cycle |
| 03/27/1990 | US4910966 Heat pump with single exterior temperature sensor |
| 03/13/1990 | US4907422 In an ice making system |
| 03/13/1990 | CA1266571A1 Hot water heating and defrost in a heat pump circuit |
| 03/06/1990 | US4905476 Device for low temperature refrigerative drying of compressed air (and/) or other gases |
| 02/27/1990 | US4903495 Transport refrigeration system with secondary condenser and maximum operating pressure expansion valve |
| 02/22/1990 | WO1990001662A1 Refrigeration system and method involving high efficiency hot gas defrost of plural evaporators |
| 02/20/1990 | US4901534 Defrosting control of air-conditioning apparatus |
| 02/13/1990 | US4899552 Refrigerating system for ice making machine |
| 02/07/1990 | EP0353410A2 Operating method for a heat pump installation |
| 02/07/1990 | CN2052514U Device of electrical shakedown test & repair for "frozen-plug" of refrigerator |
| 01/16/1990 | US4893748 Heating method and device for vehicles requiring limited power |
| 12/06/1989 | EP0345098A2 Refrigeration system |
| 11/28/1989 | US4882908 Demand defrost control method and apparatus |
| 11/07/1989 | US4878361 Harvest cycle refrigerant control system |
| 10/31/1989 | US4877046 Closing and injection valve especially for hot gas defrosting in freezing and cooling installations |
| 10/17/1989 | US4873837 Dual evaporator air conditioner |
| 09/26/1989 | US4869074 Regenerative refrigeration cycle apparatus and control method therefor |
| 09/21/1989 | WO1989008807A1 Process and device for defrosting the evaporator of a cooling unit |
| 09/21/1989 | DE3808230A1 Verfahren und vorrichtung zum abtauen von eis an einem verdampfer eines kuehlaggregats Method and device for defrosting of ice in a vaporizer a kuehlaggregats |
| 09/12/1989 | US4864829 Method and apparatus for electronically pressure sealing and leak testing an idle centrifugal chiller system |
| 09/05/1989 | US4862707 Two compartment refrigerator |
| 08/30/1989 | EP0330230A1 A defrosting method of a refrigerating circuit used for a refrigerator car |
| 08/24/1989 | DE3823783C1 Heat-pump installation, in particular for heating purposes |
| 08/08/1989 | US4854130 Refrigerating apparatus |
| 08/01/1989 | US4852360 Heat pump control system |
| 07/25/1989 | US4850204 Adaptive defrost system with ambient condition change detector |
| 07/25/1989 | US4850200 Refrigerating circuit device for air conditioning apparatus and control method thereof |
| 07/25/1989 | US4850197 Method and apparatus for operating a refrigeration system |
| 07/11/1989 | US4846259 Method for controlling fluid flow in a tube of a heat exchanger |
| 07/04/1989 | US4843831 Refrigerator control system |
| 05/30/1989 | US4833893 Refrigerating system incorporating a heat accumulator and method of operating the same |
| 05/24/1989 | EP0316391A1 Process for producing cold by solid-gas reaction. |
| 05/23/1989 | US4832068 Liquid/gas bypass |
| 05/23/1989 | US4831834 Method of protecting a refrigerating apparatus |
| 05/09/1989 | US4827732 Freezer machine for household use |
| 03/21/1989 | US4813239 In a refrigeration system |
| 03/15/1989 | EP0306587A2 Heat pump system with hot water device |
| 02/22/1989 | EP0197839B1 Method and device for heating vehicles with a reduced power requirement |
| 02/07/1989 | US4802339 Liquid refrigerant vaporizer |
| 02/01/1989 | EP0301728A1 Hot gas defrost system for refrigeration systems and apparatus therefor |
| 01/24/1989 | US4799363 Room air conditioner |
| 01/18/1989 | EP0299361A2 Demand defrost control method and apparatus |