Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
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| Number | Title | Issue Date |
| 8156750 | Dynamic superheat control for high efficiency refrigeration system A vapor compression refrigeration system including components capable of determining the superheat at a compressor inlet is provided. The vapor compression refrigeration system may include sensors capable of making measurements from which the superheat at the compre... | 04/17/2012 |
| 8096141 | Superheat control by pressure ratio A control method regulates an electronic expansion valve of a chiller to maintain the refrigerant leaving a DX evaporator at a desired or target superheat that is minimally above saturation. The expansion valve is controlled to convey a desired mass flow rate, where... | 01/17/2012 |
| 8069684 | Control of a refrigeration circuit with an internal heat exchanger Refrigeration circuit (2) for circulating a refrigerant in a predetermined flow direction, having in flow direction a heat rejecting heat exchanger (4), an evaporator throttle valve (8), an evaporator (10), a compressor (22), an in... | 12/06/2011 |
| 8020395 | Air conditioning apparatus An air conditioning apparatus includes a refrigerant circuit and an operation control section. The operation control section is capable of performing a refrigeration cycle for causing an outdoor heat exchanger to function as a refrigerant condenser and an indoor hea... | 09/20/2011 |
| 8001798 | Expansion valve, in particular for a cooling-medium system The invention relates to an expansion valve, in particular for a vehicle air-conditioning system operated with cooling medium, with a valve seat (37) and a valve-closing element (39), which closes a passage opening (44) between a cooling medium ... | 08/23/2011 |
| 7992398 | Refrigeration control system A control apparatus and associated method for a refrigeration system are provided. The control apparatus includes sensors capable of detecting controlled refrigerator zone temperatures and superheat levels of refrigerant vapour exiting an evaporator. The control mod... | 08/09/2011 |
| 7886551 | Humidity control system A humidity control system (10) includes a refrigerant circuit (50) including a compressor (53), a first adsorption heat exchanger (51) carrying an adsorbent thereon, an expansion valve (55) adjustable in opening and a second adsorp... | 02/15/2011 |
| 7784296 | System and method for controlling an air conditioner or heat pump A control procedure operates an expansion valve of an air conditioning system. The control procedure utilizes a first control procedure to bring a calculated superheat value within a range of a target superheat value, and a second control procedure to cause the calc... | 08/31/2010 |
| 7765821 | Seal device and sealing structure A seal device has a for sealing a through hole in a partition includes a first seal for providing a first abutment portion that abuts against a periphery of the through hole in an entirety thereof, and a second seal for providing a second abutment portion that is ma... | 08/03/2010 |
| 7762094 | Valve control system, valve control apparatus and valve control method In a refrigeration cycle system, temperature sensors measure the temperatures Tin and Tout of a refrigerant at the entrance and exit of an evaporator. A control circuit performs PID calculation based on signals from the temperature sensors in order to control a degr... | 07/27/2010 |
| 7617694 | Apparatus and method for controlling super-heating degree in heat pump system Provided is an air conditioner, particularly, an apparatus and method for controlling a super-heating degree in a heat pump system for preventing a liquid refrigerant from flowing into a compressor. The method includes: operating the heat pump system; receiving a pr... | 11/17/2009 |
| 7389649 | Cooling system with variable duty cycle capacity control A control system for a cooling system includes a first sensor for sensing a property indicative of demand for cooling and a controller coupled to the sensor. The controller produces the variable duty cycle control signal in response to the property and causes the co... | 06/24/2008 |
| 7364208 | Structure for connecting two members, method therefor, and die A structure connects a first member and a second member. The first member has a peripheral wall portion that includes a stepped portion that is engaged with the second member. The peripheral wall portion is a deformed portion that is deformed inwardly of the stepped... | 04/29/2008 |
| 7360372 | Refrigeration system A refrigeration system to increase the subcooling degree of refrigerant flowing through a main refrigerant circuit is provided. The refrigeration system is configured such that a portion of the refrigerant flowing through the main refrigerant circuit can be made to ... | 04/22/2008 |
| 7350367 | Environmental control system fluid sensing system and method A system for monitoring a fluid in an environmental control system includes a mechanical resonator positioned for contacting a thermal change fluid. In some embodiments, the mechanical resonator is positioned in a passage for containing the thermal change fluid. Sui... | 04/01/2008 |
| 7347253 | Plate heat exchanger and flow guide plate The invention comprises a heat exchanger with plate structure and a flow guide plate (32). The flow guide plate (32) comprises at least one recess (42) for turning the stream of a heat transfer medium substantially from the direction of the thic... | 03/25/2008 |
| 7331191 | Heating, ventilation and air conditioning (HVAC) system and method using feedback linearization A new feedback linearization approach to advanced control of single-unit and multi-unit HVAC systems is described. In accordance with the approach of the invention, this new nonlinear control includes a model-based feedback linearization part to compensate for the n... | 02/19/2008 |
| 7302811 | Fluid expansion-distribution assembly An expansion-distribution assembly (30) for the heat-absorbing component in a heatpump system. The assembly (30) comprises an envelope (32) forming an expansion chamber (54) and a distribution chamber (56). A shuttle (80) wi... | 12/04/2007 |
| 7299654 | Pressure-reducing device for an air-conditioning circuit The invention proposes a pressure-reducing device designed to be installed in an air conditioning circuit operating with cooling fluid (FR) and including a housing suited to be traversed by cooling fluid under the control of a needle valve (134). The pressure... | 11/27/2007 |
| 7290402 | Expansion valve control system and method and refrigeration unit employing the same An expansion valve control system, a method of controlling an expansion valve and a refrigeration unit incorporating the same. In one embodiment, the expansion valve control system includes (1) a superheat error circuit configured to derive a superheat error for a f... | 11/06/2007 |
| 7283360 | Enhanced flow channel for component cooling in computer systems An evaporator having an enhanced flow channel design for use in a computer system is described. Specifically, micro-channels of the evaporator comprise nucleation sites and different channel widths. The enhanced flow channel design improves heat transfer from a comp... | 10/16/2007 |
| 7275391 | Assembly for refrigerant circuits The invention relates to an assembly for refrigerant circuits that is arranged between the compressor and the evaporator thereof including a housing with a through channel. Within the through channel is a microchannel part having a filtering portion and a decompress... | 10/02/2007 |
| 7275376 | Defrost system for a refrigeration device A defrost system for a temperature controlled storage unit includes an enclosure providing a space for storage of products. A refrigeration system has a supply line and a return line coupled to a cooling element to circulate a refrigerant through the cooling element... | 10/02/2007 |
| 7263856 | Refrigerator A refrigerator is disclosed, by which a specific part of a freezer room and/or a specific part of a cold storage room can be adjusted. The refrigerator includes a body having a cold storage room and a freezer room, an evaporator provided to the body to generate cold... | 09/04/2007 |
| 7263849 | Refrigerating system for refrigerator A refrigerating system for a refrigerator is disclosed. The refrigerator includes a compressor that compresses refrigerant, a condenser connected to the compressor that condenses compressed refrigerant, an expansion valve connected to the condenser that expands cond... | 09/04/2007 |
| 7249885 | Heat flux measuring device for pressure pipes, method for producing a measuring device, method for monitoring an operating state of a heat exchanger, heat exchanger and method for measuring a heat flux A measuring device for a heat exchanger includes a heat exchanger pressure pipe having a pipe wall with a circumference, and an indentation extending over and deforming a portion of the circumference. At least one thermocouple is disposed eccentrically in the portio... | 07/31/2007 |
| 7246501 | Shut-off valve, kit having a shut-off valve, and an expansion valve The invention relates to a shut-off valve for an expansion valve (11) in refrigerating systems, in particular vehicle air conditioning systems, having a regulating screw (31), having a receiving section (32), which is arranged at one end of the ... | 07/24/2007 |
| 7237403 | Refrigerated cabinet A refrigerated cabinet includes a fan assisted refrigeration unit and a duct in communication with the fan, for distributing cold air from the fan throughout the cabinet; the duct is substantially the full width and the full length of the product storage of the cabi... | 07/03/2007 |
| 7234313 | HVAC monitor and superheat calculator system The present invention relates to a monitoring system for connection to an air conditioning system. The monitoring system includes a primary monitor for sensing the suction temperature and suction pressure of the air conditioning system along with the air conditionin... | 06/26/2007 |
| 7225627 | Vapor compression system and method for controlling conditions in ambient surroundings A vapor compression system including an evaporator, a compressor, and a condenser interconnected in a closed-loop system and a method of operating such a system. The method includes the conversion of expanded liquid heat transfer fluid from a liquid form to a high q... | 06/05/2007 |
| 7222502 | Expansion valve The invention provides an improved structure for assembling components in an expansion valve used in air conditioners. An expansion valve body 30 has a valve chamber 35 and a passage 32 through which refrigerant from a compressor enters. The ref... | 05/29/2007 |
| 7204300 | Welded heat exchanger with plate structure The invention relates to a heat exchanger (1) with plate structure, comprising a stack (6) of plates fitted inside a housing unit (2) assembled by welding circular heat transfer plates (10) and used as a pressure vessel. All the passages ... | 04/17/2007 |
| 7201008 | Vapor compression system performance enhancement and discharge temperature reduction in the unloaded mode of operation A vapor compression system includes a main vapor compression circuit having a compressor, a condenser, an expansion device and an evaporator serially connected by main refrigerant lines, the compressor having a suction port, a main discharge port and an intermediate... | 04/10/2007 |
| 7185501 | Cryogenic cooling system and method with backup cold storage device A cooling system for providing cryogenic cooling fluid to a thermal load, the system comprising: a main cryogenic refrigeration system; a cryogenic cooling fluid feed line having a feed line outlet coupled to the thermal load and a feed line inlet coupled to the cry... | 03/06/2007 |
| 7185826 | Expansion valve The invention provides an expansion valve maintaining the functions of the prior art expansion valve and at the same time realizing a simple arrangement with less components and less required number of assembly steps, and enabling to cut down assembly costs. A first... | 03/06/2007 |
| 7178362 | Expansion device arrangement for vapor compression system A carbon dioxide vapor compression system including a compressor, a first heat exchanger, an expansion device arrangement, and a second heat exchanger connected in a closed loop. The expansion device arrangement includes an inlet line disposed between the first heat... | 02/20/2007 |
| 7174726 | Adjustable nozzle distributor A distributor, for use in a refrigerant system for conveying refrigerant between an expansion device and an evaporator, having a longitudinal body, an actuator, a plug, a first nozzle, and a second nozzle. The longitudinal body having a first end, a second end, a lo... | 02/13/2007 |
| 7175164 | Method and apparatus for an oval carbonator A method and corresponding apparatus for an oval carbonator employ an oblong housing to provide an improved gas/water interaction area within the confines of the carbonator. The increased cross sectional area provides a larger water surface area, whereby an increase... | 02/13/2007 |
| 7171818 | System and method for controlling temperature of refrigerant in air conditioner There is provided a system and method for controlling a temperature of a refrigerant in an air conditioner, in which a supercooling degree and/or a superheating degree can be secured by controlling a difference in refrigerant temperatures of a pipe connecting one or... | 02/06/2007 |
| 7165414 | System for the dehumification of air An improved air conditioner system for controlling a desired temperature and a reduced humidity level in a space to be environmentally controlled, that comprises an additional second heat exchanger and third heat exchanger in the separate indoor air flow path. The r... | 01/23/2007 |
