Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 7234314 | Geothermal heating and cooling system with solar heating A sealed well direct expansion geothermal heat exchange unit, whose sealed well can be placed in ground and/or in water, consisting of a conventional direct expansion, or other heat pump, system wherein the exterior refrigerant heat exchange lines are placed within ... | 06/26/2007 |
| 7180214 | Condenser fan motor dust shield A dust shield for a refrigeration condenser fan motor includes a shroud having an opening for a motor output shaft, and a hub extending from the shroud. The shroud forms an enclosure to prevent contaminants from interfering with operation of the motor. The hub inclu... | 02/20/2007 |
| 7159409 | Method and apparatus for controlling the load placed on a compressor A method of operating a vapor compression system, the vapor compression system defining a closed fluid circuit in which a refrigerant is circulated and having operably disposed therein, in serial order, a compressor, a high pressure heat exchanger, an expansion devi... | 01/09/2007 |
| 7143820 | Systems for improved heat exchanger A system in which a heat exchanger includes a core, a plurality of fins extending outwardly from the core, and an element disposed within the cavity of the core. The heat exchanger also includes a first cap coupled to the first end of the core, and a second cap coup... | 12/05/2006 |
| 7137266 | Time division multi-cycle type cooling apparatus and method for controlling the same The present invention relates to a cooling apparatus including a compressor, a condenser, a first expanding unit, a second expanding unit, a third expanding unit, a first evaporator, and a second evaporator; a first refrigerant circuit containing refrigerant dischar... | 11/21/2006 |
| 7131284 | Automatic defrost controller including air damper control A damper apparatus for controlling airflow between compartments in a two compartment refrigerator having a door includes a controller for controlling opening and closing of a damper; and a door sensor connected to the controller for detecting when the door is open. ... | 11/07/2006 |
| 7104083 | Refrigeration system configuration for air defrost and method A refrigeration system of the type having a compression stage, a condensation stage, an expansion stage and an evaporation stage, comprising a first evaporator group in the evaporation stage. The first evaporator group has two or more evaporators. A first valve is p... | 09/12/2006 |
| 7007490 | Refrigerator and control method thereof A refrigerator, in which air blast fans in storage chambers are controlled so as to reduce a power consumption rate, and a control method of the refrigerator. The control method includes the steps of (a) determining whether or not a plurality of air blast devices, r... | 03/07/2006 |
| 6988374 | Frostless heat exchanger and defrosting method thereof A frostless heat exchanger used for an air-source system, comprises: an antifreezing solution supplying device for applying an antifreezing solution having a freezing point lower than a surface temperature of the heat exchanger on a surface of the heat exchanger to ... | 01/24/2006 |
| 6981385 | Refrigeration system A refrigeration system for objects is disclosed. The system includes a refrigeration device and a defrost system. The refrigeration device provides a case or container defining a space for the objects, a first heat exchanger associated with the container for cooling... | 01/03/2006 |
| 6929149 | Frozen product vending machine A frozen product, upright-style vending machine having a pick and place mechanism moveable in three dimensions (X, Y, Z) with a fourth, rotational, degree of freedom (W) effected using the Z axis drive. The mechanism moves along tracks in the X-Y directions and is p... | 08/16/2005 |
| 6840051 | Electronic evaporator dryer for eliminating odors in vehicle air conditioning systems An apparatus and method for drying condensate from the heat exchanger of a vehicle's air conditioning system after operation in order to thwart odor buildup is provided. The apparatus and method operate regardless of whether the system's blower control circuit is po... | 01/11/2005 |
| 6742346 | Method for operating an air conditioning installation The invention is based on a method for operating a climate control system for a vehicle, in the case of which a compressor (38), in a cooling mode, circulates a coolant through a gas condensing apparatus (42) and an expansion device (50) to a pa... | 06/01/2004 |
| 6298673 | Method of operating a refrigerated merchandiser system A refrigerated merchandiser system (10) includes a compressor (20), a condenser (30), a display case (100) having an evaporator (40), an expansion device (50), and an evaporator pressure control device (60) connected in a closed refrigerant circuit via re... | 10/09/2001 |
| 6233917 | Method of controlling the temperature of intake air, temperature-control device for carrying out the method and gas turbine having the temperature-control device A method of controlling the temperature of intake air provided from outside air passing through an air-feed system only utilizes an especially low heating of the intake air while at the same time safely avoiding the formation of ice in the intake air, in ... | 05/22/2001 |
| 6192698 | Vehicle-air-conditioning system with cooling degree estimator for left/right temperature control In an air-conditioning system having two air-conditioning passages serving two different air-conditioning zones but having a cooling degree detector provided in only one of the passages to reduce cost, with the degree to which air is cooled in the other p... | 02/27/2001 |
| 6085639 | Cooking facility Foodstuffs are cooked by soaking in a hot liquid followed by a soaking in at least one cold liquid. A tank or a plurality of cooking tanks is provided with a liquid inlet, a heating unit for obtaining hot liquid, a refrigeration unit for obtaining cold li... | 07/11/2000 |
| 6076362 | Process and apparatus for cooling a continuously inflowing liquid in vacuo A process for cooling a continuously inflowing liquid, in particular a dispersion, in vacuo which comprises subjecting the liquid to a flash evaporation in a separator.... | 06/20/2000 |
| 5931004 | Refrigerator and control method therefor A refrigerator having freezing and refrigerating compartments and a refrigerating H.M. cycle and a control method therefor, comprises a compressor for compressing refrigerant, a condenser for condensing refrigerant, a capillary tube for expanding refriger... | 08/03/1999 |
| 5887440 | Refrigeration coil defrost system A defrost system 10 for a refrigerated display counter 11 is described. The system 10 comprises a defrost conduit 14 which is adapted to be positioned in close proximity to a refrigeration coil 12 of a refrigerated display counter 11. A heat exchanger 13 ... | 03/30/1999 |
| 5867994 | Dual-service evaporator system for refrigerators The disclosed refrigeration appliance includes a fresh-food compartment and a freezer compartment with a plenum or duct therebetween housing a single evaporator and at least one fan for establishing air flows through the plenum in opposite directions, an ... | 02/09/1999 |
| 5799728 | Dehumidifier Apparatus for dehumidifying air comprising two cooling coils operable in a first mode for circulating coolant at a temperature above 32° F. and below the dew point of the air through one of the coils and for circulating coolant at a temperature below 32Â... | 09/01/1998 |
| 5715690 | Microwave thermal heat pump defroster A microwave thermal heat pump defroster system, utilizing a magnetron tube, or other microwave energy generating device, for the application of heat to the external surfaces of the outside coil of an electric heat pump, while the heat pump is operating in... | 02/10/1998 |
| 5711159 | Energy-efficient refrigerator control system An energy-efficient refrigerator includes a refrigerator control system for generating refrigerator control signals responsive to cooling demands of respective refrigerator compartments; a refrigeration apparatus coupled to the control system; and a multi... | 01/27/1998 |
| 5408835 | Apparatus and method for preventing ice from forming on a refrigeration system The invention relates to a method for preventing ice from forming on a cooling system for air by adding an antifreeze to the air being cooled by the cooling system. The cooled air containing the antifreeze is then transferred a turbine engine, wherein the... | 04/25/1995 |
| 5329781 | Frost control system A frost control system is described for inhibiting and removing frost from the door of a storage locker. Relatively cool air is received by an inlet to the frost control system at an inlet placed above the door. The air is drawn into the system by a blowe... | 07/19/1994 |
| 5301723 | Apparatus and method of preventing ice accumulation on coupling valves for cryogenic fluids An LNG refueling facility includes a nozzle for mating with the receptacle on a motor vehicle to deliver a flow of LNG to the vehicle's tank. The nozzle is supplied with a flow of dry gas to purge moisture-laden air from around surfaces which mate with th... | 04/12/1994 |
| 5293904 | Train line de-icer A pneumatic liquid injector de-icing system designed for use on air brake lines of a train includes an alcohol storage tank provided with fittings for engagement between the train air supply lines and the train brake lines. The storage tank may be provide... | 03/15/1994 |
| 5249433 | Method and apparatus for providing refrigerated air This invention relates to an apparatus for continuously providing low temperature refrigerated air for freezing and storage of food products, wherein process air is refrigerated by passing over an evaporator coil. Frost build-up on the evaporator coil is ... | 10/05/1993 |
| 5203175 | Frost control system A frost control system is described for inhibiting and removing frost from the door of a storage locker. Relatively cool air is received by an inlet to the frost control system at an inlet placed above the door. The air is drawn into the system by a blowe... | 04/20/1993 |
| 5138843 | Method for operating an open show-case This open show-case has inner and outer air ducts, a first evaporator and a first blower in said inner duct (an inner evaporator and an inner blower, respectively), and a second evaporator and a second blower in said outer duct, said blowers circulating t... | 08/18/1992 |
| 4974418 | Heat pump defrosting operation The present invention is a technique for a defrosting operation of a heat pump. External air provides the heat for defrosting the exterior heat exchanger by operating the exterior fan during times when the compressor is not operating, the temperature of t... | 12/04/1990 |
| 4974417 | Heat pump defrosting operation The present invention is a technique for a defrosting operation of a heat pump. External air provides the heat for defrosting the exterior heat exchanger by operating the exterior fan during times when the compressor is not operating, the temperature of t... | 12/04/1990 |
| 4951473 | Heat pump defrosting operation The present invention is a technique for a defrosting opereation of a heat pump. External air provides the heat for defrosting the exterior heat exchanger by operating the exterior fan during times when the compressor is not operating, the temperature of ... | 08/28/1990 |
| 4944158 | Method of defrosting a refrigerating circuit for use in cooling a vehicular chamber A method of defrosting a refrigerating circuit for use in cooling a vehicular chamber comprises two steps. In a first step a frost formed at an outer surface of an evaporator of a cooling unit is defrosted by directly leading discharged gas to the evapora... | 07/31/1990 |
| 4928498 | Method and device for compression of gases The invention relates to a method and a device for compression of gases, in particular of air, within a compressed air piping system. The air drawn in for the compressor is cooled below 0° C. within a freeze-dehumidifer in a cooling channel. The supply o... | 05/29/1990 |
| 4774813 | Air conditioner with defrosting mode An air conditioner having a defrosting mode of operation is disclosed, in which an outdoor heat exchanger is divided into two heat exchanger units juxtaposed in tandem with each other along the direction of air passage. In defrosting mode, a part of the r... | 10/04/1988 |
| 4577467 | Frost diffusion system for refrigeration apparatus An improved evaporator unit in which a cooling tube core is placed between guide panels which permit a portion of the refrigerated air band to by-pass the front air opening of the core and to thereafter be forced into the core along a substantial longitud... | 03/25/1986 |
| 4517810 | Environmental control system An environmental control system for controlling the environmental conditions in a swimming pool hall 1 comprises a heat pump having a multi-section evaporator 8, compressors 23a and 23b and a multi-section condensor 18. In the day-time, the dry bulb tempe... | 05/21/1985 |
| 4514988 | Refrigerated display case having ambient air defrost A refrigerated display case having an ambient air automatic defrost system and a method of operating such a case. The display case has an access opening in one wall for enabling products within the display section to be removed. The access opening can be ... | 05/07/1985 |
