Detachable Valve And Coupling Patents (Class 62/299)
  • Patent number: 11761654
    Abstract: A method which eliminates the need to remove environmentally-unsafe hydrochloro-fluorocarbons from an air conditioning system prior to the removal of the system's evaporator coil for cleaning is disclosed. The method also eliminates the cutting and soldering steps which must be conducted on the air conditioner system's copper refrigerant transport lines every time an evaporator coil is now removed for cleaning. The method utilizes a reversibly separable ball valve assembly unit affixed to each of the AC system's two refrigerant transport lines to achieve removal of refrigerant from the evaporator coil and its subsequent safe storage within other components of the air-conditioning system until the cleaned evaporator coil is reinstalled and the refrigerant's flow into and out of the cleaned evaporator is restored according to the disclosed method.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: September 19, 2023
    Inventor: Christian Ridao
  • Patent number: 10669626
    Abstract: According to one embodiment, a processing system includes a first vessel, a destination part to be transported, and a liquid sending part. The first vessel gathers a product being liquid temporarily. The destination part to be transported includes a second vessel to gather the product transported from the first vessel. The liquid sending part includes a first portion. The first portion includes a nozzle and a first mechanism. The nozzle discharges the product provided between the first vessel and the destination part to be transported. The first mechanism is purged by an inactive gas.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: June 2, 2020
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventor: Shinya Sato
  • Patent number: 9791203
    Abstract: A refrigerator and method of supplying coolant material are provided, the refrigerator including an interior and a main cooling loop, at least a portion of the interior includes a freezer section and at least a portion of the main cooling loop includes an evaporator. The refrigerator includes at least one detachable module having at least one connector, the detachable module configured to removably attach to a surface of the refrigerator, and a secondary cooling loop having at least one connector that corresponds to the at least one detachable module's at least one connector, wherein at least a portion of the secondary cooling loop is in thermal communication with at least one of the main cooling loop, the evaporator, and the freezer section, and wherein the secondary cooling loop is configured to be in fluid communication with the at least one detachable module through the corresponding at least one connectors.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: October 17, 2017
    Assignee: Whirlpool Corporation
    Inventors: Steven J. Kuehl, Tushar Kulkarni, Guolian Wu
  • Patent number: 9097458
    Abstract: A refrigeration device comprising a heat-insulated housing, which contains a storage compartment, a water tank, a fan for propelling a stream of cold air that passes through an evaporator and a distribution unit for the controlled distribution of the stream of cold air along at least two circulation paths, the first of which is in closer thermal contact with the water tank than the second.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: August 4, 2015
    Assignee: BSH HAUSGERĂ„TE GMBH
    Inventors: Martin Buchstab, Irene Dumkow, Adolf Feinauer, Klaus Flinner, Bernd Heger, Peter Nalbach, Kasim Yazan
  • Patent number: 8966923
    Abstract: The invention relates to a coupling unit (16) for connecting refrigerant lines (11) of a refrigerant circuit (10), in particular for cooling a vehicle drive module, said coupling unit including an expansion valve (20) accommodated in the coupling unit (16), said expansion valve (20) separating the refrigerant circuit (10) into a first and a second sub-areas (30, 32), said coupling unit (16) being connected directly to a refrigerant feed and a refrigerant return for an evaporator (26), said coupling unit (16) respectively comprising a coupling connection (36, 38) of the refrigerant feed and the refrigerant return, which are detachably connected to the expansion valve (20) via a common fastening device (44), and with the common fastening device (44) having at least one fastening element (48) that is accessible for connecting and disconnecting from a side of the expansion valve (20) that faces away from the coupling connections (36, 38).
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: March 3, 2015
    Assignee: Valeo Klimasysteme GmbH
    Inventor: Roland Haussmann
  • Patent number: 8763415
    Abstract: Provided is an air conditioner. The air conditioner includes an outdoor unit and an indoor unit, a plurality of refrigerant tubes guiding refrigerant to flow into the outdoor unit and the indoor unit, and a refrigerant tube support inside the outdoor unit, the refrigerant tube supporting the plurality of refrigerant tubes, wherein the refrigerant tube support has a height difference such that the plurality of refrigerant tubes are separately supported at different positions.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: July 1, 2014
    Assignee: LG Electronics Inc.
    Inventors: Seok Hoon Jang, Byoung Sup Kim, Joon Hyuk Kwon, Woong Seok Noh, Eun Seong Pack
  • Patent number: 8713958
    Abstract: A triple-pipeline type first outdoor unit 2 provided with a first compressor 20 and a first outdoor heat exchanger 21, a plurality of indoor units 4A to 4D are provided, a second outdoor unit 3 provided with a second compressor 30, a second outdoor heat exchanger 32, and a second expansion valve 33, the first outdoor unit 2 is provided with a first four-way valve 60 that makes a refrigerant discharge pipe 25 of the first compressor 20 and a high-pressure gas pipe 7 capable of communicating with each other and if all the indoor units 4A to 4D perform a cooling operation at the same time, the first four-way valve 60 shuts off the communication between the refrigerant discharge pipe 25 and the high-pressure gas pipe 7, while a third four-way valve 51 is switched so as to connect a gas pipe 35d to the high-pressure gas pipe 7.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: May 6, 2014
    Assignee: SANYO Electric Co., Ltd.
    Inventor: Takashi Sekine
  • Publication number: 20140069133
    Abstract: A service port cap has a body configured to be snapped onto a service port such as an automotive air conditioning service port. The cap has an axial slot allowing the body to spread as it is pressed onto the service port. A rubberized plug in the top of the cap bears and seals against the end of the service port. Should a fluid leak develop through the service port, the rubberized plug maintains a seal until the pressure is sufficient to overcome the seal created by the plug. At this point, the leaking fluid is directed out through the axial slot in the cap. Thus, the cap does not blow off and the flow of leaking fluid is controlled so that it does not spew. One embodiment includes a locking ring that slides to a locking position to lock the cap onto a service or other port to form a fixed seal.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 13, 2014
    Applicant: AirSept, Inc.
    Inventor: Aaron Becker
  • Patent number: 8464546
    Abstract: A pipe structure of an electric compressor has an electric compressor disposed in an engine compartment of a vehicle and configured to be driven by a battery power source to compress a refrigerant, a harness connecting portion disposed on an upper surface of the electric compressor and electrically connecting a harness to the electric compressor, and a pipe connecting portion disposed forward of the harness connecting portion and connecting an air conditioner pipe to the electric compressor. At least a part of the air conditioner pipe is disposed above the electric compressor and forward of the harness connecting portion.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: June 18, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventor: Kenichiro Minami
  • Patent number: 8443838
    Abstract: A refrigerant valve has a body with a through bore. Multiple tubes have openings aligned in a ring around a middle of the bore. The tubes lead to larger channels in the body. A needle assembly inserted through an end of the bore reciprocates a needle with a stepper motor and speed reducer to precisely control sizes of the openings. Further advancing the needle shaft after closing the openings to the tubes, engages and slides a bypass sleeve against a return spring force to open a bypass in a side of the valve body. A connector connects the bypass in a first end of the bore to outward opening holes of the channels.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: May 21, 2013
    Inventor: Carlos Quesada Saborio
  • Publication number: 20130042643
    Abstract: The invention relates to a coupling unit (16) for connecting refrigerant lines (11) of a refrigerant circuit (10), in particular for cooling a vehicle drive module, said coupling unit including an expansion valve (20) accommodated in the coupling unit (16), said expansion valve (20) separating the refrigerant circuit (10) into a first and a second sub-areas (30, 32), said coupling unit (16) being connected directly to a refrigerant feed and a refrigerant return for an evaporator (26), said coupling unit (16) respectively comprising a coupling connection (36, 38) of the refrigerant feed and the refrigerant return, which are detachably connected to the expansion valve (20) via a common fastening device (44), and with the common fastening device (44) having at least one fastening element (48) that is accessible for connecting and disconnecting from a side of the expansion valve (20) that faces away from the coupling connections (36, 38).
    Type: Application
    Filed: January 5, 2011
    Publication date: February 21, 2013
    Inventor: Roland Haussmann
  • Patent number: 8297071
    Abstract: A shut-off valve mounting structure is for holding shut-off valves in place in an outdoor unit of an air conditioner, and includes bases, and a fixing portion. The shut-off valves are connected to an indoor unit of the air conditioner via refrigerant communication pipes. The bases extend upwards from a bottom frame of the outdoor unit (2). The fixing portion is continuous with the bases, and holds the shut-off valves in place such that a space exists below the shut-off valves.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: October 30, 2012
    Assignee: Daikin Industries, Ltd.
    Inventors: Kazuhiro Shioyama, Satoru Ohkura, Tadashi Sao, Ikuji Ishii, Keiji Ishida
  • Patent number: 8199504
    Abstract: In a cooling system for an electronic device of the present invention, server rooms in which a plurality of servers are placed, an evaporator which is provided close to each of the servers, and cools exhaust air from the server by vaporizing a refrigerant with heat generating from the server, a cooling tower which is provided at a place higher than the evaporator, cools the refrigerant by outside air and water sprinkling, and condenses the vaporized refrigerant, and a circulation line in which the refrigerant naturally circulates between the evaporator and the cooling tower. According to the cooling system, an electronic device which is required to perform a precise operation with a heat generation amount from itself being large, such as a computer and a server, can be efficiently cooled at low running cost.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: June 12, 2012
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Yasuhiro Kashirajima, Hiroshige Kikuchi, Takumi Sugiura, Koji Watanabe, Kenichi Nakashima
  • Patent number: 8065885
    Abstract: A refrigeration and freezing device with fresh-keeping function by supplying nitrogen comprises a box body, a refrigerating and freezing chamber disposed inside the box body, a door to the refrigerating and freezing chamber, a control device and a nitrogen generator; wherein said nitrogen generator is disposed either inside or outside the box body of the refrigeration and freezing device, said nitrogen generator comprises an air inlet, an oxygen outlet, a nitrogen outlet, an air filter connected with the air inlet, a compressor, a pipe device for transmitting gas, at least one carbon molecular sieve absorber, at least one control valve to control different absorbers to work alternately, a nitrogen storage container, a nitrogen purifier, a pressure reducing valve for adjusting the pressure of the produced nitrogen, a ventilating muffler disposed on a pipe to the oxygen outlet and a control circuit.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: November 29, 2011
    Inventor: Dong-lei Wang
  • Patent number: 7992721
    Abstract: A filter in some embodiments of the invention includes: a housing defining an interior chamber substantially sealed from outside of the housing; a valve located in the chamber biased to a first position where the valve maintains a seal between the interior chamber and outside of the housing; and an anchor fixed to the housing defining a surface for a spring to urge against and bias the valve to the first position and be compressed against when a receiver enters into the housing a moves the valve to a second position, the anchor defining, at least in part, flow paths wherein a pressurized fluid within the housing can communicate with an interior of the receiver to equalize a pressure within the chamber and the interior of the receiver; and a nipple attached to the housing having an interior passageway configured to permit the receiver to pass through in a substantially sealed manner. A method of attaching a filter to a filter receiver is also provided.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: August 9, 2011
    Assignee: SPX Corporation
    Inventor: Mark McMasters
  • Patent number: 7855890
    Abstract: In a cooling system for an electronic device of the present invention, server rooms in which a plurality of servers are placed, an evaporator which is provided close to each of the servers, and cools exhaust air from the server by vaporizing a refrigerant with heat generating from the server, a cooling tower which is provided at a place higher than the evaporator, cools the refrigerant by outside air and water sprinkling, and condenses the vaporized refrigerant, and a circulation line in which the refrigerant naturally circulates between the evaporator and the cooling tower. According to the cooling system, an electronic device which is required to perform a precise operation with a heat generation amount from itself being large, such as a computer and a server, can be efficiently cooled at low running cost.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: December 21, 2010
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Yasuhiro Kashirajima, Hiroshige Kikuchi, Takumi Sugiura, Koji Watanabe, Kenichi Nakashima
  • Patent number: 7721568
    Abstract: A refrigerator unit beverage tapper conversion kit includes a door cover. The door cover includes a nylon sheet sewn into the shape of a generally concave cap. The regular door is replaced with the door cover. At least one insulating layer is attached to an inside surface of the cap. An inside perimeter of the door cover is sized to be slipped over an outside perimeter of an open end of the refrigerator unit. An elastic loop is retained on an open perimeter of the door cover for sealing an open end of the refrigerator unit. The refrigerator unit beverage tapper conversion kit may also include a carbon dioxide bottle, a gas regulator, a sankey, a faucet support, a faucet, a faucet shank, a carbon dioxide tube and a beverage tube. The faucet is disposed on the refrigerator door cover for dispensing a beverage in a half barrel.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: May 25, 2010
    Inventor: Robert J. Grutza, Jr.
  • Patent number: 7610771
    Abstract: A refrigerating apparatus for a refrigerator has an electrical voltage supply and an electrical interface for connection with components of the refrigerator with the interface having a galvanic isolation between an input arrangement connected with the refrigerating apparatus and an output arrangement connected with at least one component of the refrigerator.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: November 3, 2009
    Assignee: Danfoss Compressors GmbH
    Inventors: Carsten Rothmann, Ole Schebel Bachmann
  • Publication number: 20080289343
    Abstract: A coupling in accordance with the present invention may be used to join devices together without the need for conduits or other intermediaries. A nut may be used to couple the coupling to a first device via a first thread portion and to a second device via a second thread portion. In some embodiments, the coupling may be affixed to one of the first or second devices.
    Type: Application
    Filed: May 27, 2008
    Publication date: November 27, 2008
    Inventor: Herman D. Wiser
  • Patent number: 7114344
    Abstract: An air conditioner service fitting is provided and includes a valve body comprising a threaded bore and an annular valve seat extending around the bore. The valve body is configured and the valve seat is positioned such that all fluid that passes through the bore crosses the valve seat. A twist-to-open valve is disposed in the bore and threadedly engages with the valve body. The twist-to-open valve includes a valve element configured to form a polymer-to-metal seal with the valve seat. The polymer-to-metal seal stops substantially all fluid flow through the bore and the flow path when the twist-to-open valve is closed. The valve body further includes an external connection feature disposed around the bore. The valve body comprises an external sealing surface.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: October 3, 2006
    Assignee: Schrader-Bridgeport International, Inc.
    Inventors: Major H. Gilbert, Jeffrey A. Schultz
  • Patent number: 7096685
    Abstract: A service device connects to a service port of a pressurized system. The device includes a valve opening member for opening a valve within the port. The device can attach to a service unit for servicing the pressurized system. The system can be an air conditioning or refrigeration system.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: August 29, 2006
    Assignee: Prime Solutions LLC
    Inventor: Steven M. Knowles
  • Patent number: 7007493
    Abstract: A sub-unit for a vehicle air conditioning system is shipped with a condenser, chiller and fluid lines. Snap together couplings are placed on free ends of the fluid lines whereby the sub-unit can be pre-charged, shipped, installed into the front end of a vehicle engine compartment and connected to an air conditioning compressor.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: March 7, 2006
    Assignee: Delphi Technologies, Inc.
    Inventors: Prasad S. Kadle, Mahmoud Ghodbane
  • Patent number: 6848267
    Abstract: Disclosed is a packaged chilling system for providing chilled water to an air conditioning system for a building that includes: a duct system; an air handling system; and a water chilling system; wherein: the duct system is in operable communication with a building that has a plurality of rooms, at least one of the rooms having a sensor for detecting the room air temperature in the room, the duct system comprising at least one supply duct for directing low temperature air from the air handling system to the building and at least one return duct for directing high temperature air from the building to the air handling system; the air handling system includes a plurality of air handling units, each air handling unit comprising an air inlet for receiving high temperature air from the building, a cooling coil that includes at least one conduit through which chilled water flows, the cooling coil having multiple passes and positioned for heat transfer contact with the high temperature air, and a fan for increasing t
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: February 1, 2005
    Assignee: TAS, Ltd.
    Inventor: Tom L. Pierson
  • Patent number: 6848670
    Abstract: An access port includes a process port with a removable valve core. An adapter is receivable within an end of the process port, and includes a depressor which can engage a valve within the valve core. The process port allows correction of standard female coupling members for rapid in-plant processing of air conditioning and refrigeration systems; while the use of the adapter with the process port permits the connection of standard field service equipment, to facilitate repair of the air conditioning and refrigeration systems.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: February 1, 2005
    Assignee: Parker-Hannifin Corporation
    Inventors: Gregory A. Haunhorst, Keith H. Gifford, John C. Field
  • Patent number: 6837064
    Abstract: A service device connects to a service port of a pressurized system. The device includes a valve opening member for opening a valve within the port. The device can attach to a service unit for servicing the pressurized system. The system can be an air conditioning or refrigeration system.
    Type: Grant
    Filed: December 23, 2002
    Date of Patent: January 4, 2005
    Assignee: Prime Solutions LLC
    Inventor: Steven M. Knowles
  • Patent number: 6601639
    Abstract: In a vehicle air conditioner where an air conditioning unit is disposed at an approximate center within an instrument panel portion in a vehicle right-left direction, an evaporator is disposed to be inclined relative to the vehicle right-left direction by a predetermined angle so that a right seat side end (driver's seat side end) of the evaporator is placed at a vehicle front side and a left seat side end thereof is placed at a vehicle rear side while an air inlet surface of the evaporator extends in a vehicle up-down direction. Further, because an opening portion is provided at a left side surface of an air conditioning case, it is possible for the evaporator to be detached from the opening portion obliquely toward a vehicle left rear side. On the other hand, because a pipe connection member is connected to the right side end of the evaporator, a pipe structure of the evaporator become simple in a passenger compartment.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: August 5, 2003
    Assignee: Denso Corporation
    Inventor: Kazuji Shibata
  • Publication number: 20030136142
    Abstract: A service device connects to a service port of a pressurized system. The device includes a valve opening member for opening a valve within the port. The device can attach to a service unit for servicing the pressurized system. The system can be an air conditioning or refrigeration system.
    Type: Application
    Filed: December 23, 2002
    Publication date: July 24, 2003
    Inventor: Steven M. Knowles
  • Patent number: 6584798
    Abstract: The present invention concerns an Individual cooling system comprising: (a) a garment V; (b) a container containing a block of material liberating an amount of cooling energy by phase change; (c) a pump P. The invention characterized in that it comprises means enabling the continuous operation of the assembly without solidification of the heating medium, even if the solidification temperature of the heating medium is higher than the temperature of the block of material releasing the cooling energy by phase change.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: July 1, 2003
    Inventor: Robert Schegerin
  • Patent number: 6546952
    Abstract: A service valve and cap assembly is disclosed. The service valve comprises a valve stem that is inserted into a valve body. An upper portion of the valve body defines a collar selectively formable between a first installation inner diameter to a second retention inner diameter. A service valve sealing cap includes a base portion and a generally annular sealing portion. An annular shoulder is formed on the sealing portion inner diameter, such that the radially inner diameter of the shoulder portion is less than the collar first outer diameter, and is greater than the collar second outer diameter.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: April 15, 2003
    Assignee: Parker-Hannifiin Corporation
    Inventors: Michael G. Martin, David Klafter, Todd Markward
  • Publication number: 20030029186
    Abstract: The present invention concerns an Individual cooling system comprising: (a) a garment V; (b) a container containing a block of material liberating an amount of cooling energy by phase change; (c) a pump P. The invention characterized in that it comprises means enabling the continuous operation of the assembly without solidification of the heating medium, even if the solidification temperature of the heating medium is higher than the temperature of the block of material releasing the cooling energy by phase change.
    Type: Application
    Filed: August 19, 2002
    Publication date: February 13, 2003
    Inventor: Robert Schegerin
  • Patent number: 6484950
    Abstract: To provide an expansion valve which permits both the assembling cost and the cost of parts to be effectively reduced by a large margin and thus is highly economical. A high-pressure refrigerant pipe, a valve casing and a low-pressure refrigerant pipe are previously formed integrally with an evaporator. At the time of assembling, an expansion valve unit having a minimum function to serve as an expansion valve is inserted into the valve casing and fixed thereto by a clip, and a distal end portion of a temperature sensing cylinder is fixed to an outlet pipe of the evaporator, thereby constructing an expansion valve. No special joints are required to connect the expansion valve unit to the high-pressure and low-pressure refrigerant pipes, and therefore, the cost of parts can be cut down.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: November 26, 2002
    Assignee: TGK Co. Ltd.
    Inventors: Hisatoshi Hirota, Isao Sendo, Kuniharu Baba, Takeshi Kaneko
  • Patent number: 6438989
    Abstract: A juice dispenser is shown that includes a water bath tank, a mechanical refrigeration system and a beverage containing cabinet. These three primary components are designed to be separable modular units that are easily assembled together and disassembled. A sheet metal refrigeration deck having an evaporator secured thereto and suspended there below is dropped into and secured to a top end of a water bath tank. Various mechanical refrigeration components including primarily a compressor and condenser, are supported above the deck at a rear portion thereof. The beverage cabinet is positioned and retained above a forward portion of the water bath tank and includes an internal space for retaining a beverage container for holding typically a volume of beverage or juice concentrate/syrup. Fluid disconnects provide for releasable connection with the water bath for providing fluid connection to a heat exchange coil located in the cabinet to provide cooling therein, and hence, cooling of the concentrate.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: August 27, 2002
    Assignee: IMI Cornelius Inc.
    Inventors: Peter F. Wolski, Michael S. Long, William W. Segiet, Jr.
  • Patent number: 6412703
    Abstract: An expansion valve 101 comprises a substantially prismatic-shaped valve body 301 made of aluminum alloy. On the valve body 301 is formed a first passage 32 through which a liquid-phase refrigerant travels towards an evaporator, and a second passage 34 through which a gas-phase refrigerant travels from the evaporator toward a compressor. On the upper portion of the valve body 301 is mounted a power element portion 36 for driving the valve mounted in the middle of a first passage 32. On the side surfaces 301a of the valve body 301 are formed protruding portions 301c, and to the protruding portions, penetrating holes 50 for inserting the bolt for mounting the expansion valve are formed.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: July 2, 2002
    Assignee: Fujikoki Corporation
    Inventors: Masamichi Yano, Kazuhiko Watanabe
  • Patent number: 6241157
    Abstract: An expansion valve 101 comprises a substantially prismatic-shaped valve body 301 made of aluminum alloy. On the valve body 301 is formed a first passage 32 through which a liquid-phase refrigerant travels towards an evaporator, and a second passage 34 through which a gas-phase refrigerant travels from the evaporator toward a compressor. On the upper portion of the valve body 301 is mounted a power element portion 36 for driving the valve mounted in the middle of a first passage 32. On the side surfaces 301a of the valve body 301 are formed protruding portions 301c, and to the protruding portions, penetrating holes 50 for inserting the bolt for mounting the expansion valve are formed.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: June 5, 2001
    Assignee: Fujikoki Corporation
    Inventors: Masamichi Yano, Kazuhiko Watanabe
  • Patent number: 6199396
    Abstract: A refrigerant pipe unit for a room air-conditioner includes two refrigerant pipes laid through a piping hole in the building wall and interconnecting an indoor unit and an outdoor unit of the room air-conditioner for circulation of a refrigerant through the room air-conditioner. A stop valve is attached to at least one end of each of the refrigerant pipes for blocking flow of the refrigerant between the indoor unit and the outdoor unit. A maximum size of the stop valve which is measured in a radial direction about the central axis of each refrigerant pipe is designed such that the stop valve attached to the end of each refrigerant pipe can pass through the piping hole while the other refrigerant pipe is present inside the piping hole. Thus, the air-conditioner can be disassembled while the refrigerant is kept sealed within the indoor unit, the outdoor unit and the refrigerant pipe unit.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: March 13, 2001
    Inventor: Nikichi Aizawa
  • Patent number: 6158229
    Abstract: In order to seal in refrigerant in a heat exchanger as much quantity as possible till to reuse the refrigerant at a new place of the heat exchanger after transfer or till to recover the refrigerant at a refrigerant recovery site, even when electricity is suspended to the new place or when outside temperature is lower than a certain temperature at the place where the heat exchanger such as an air conditioner having a separated interior instrument and exterior instrument is being installed, two on-off valves are provided in the refrigerant piping of the interior instrument besides two on-off valves provided in the refrigerant piping of the exterior instrument, or on-off valves are provided in each connecting pipe connecting with the refrigerant piping of the interior instrument and the refrigerant piping of the exterior piping, and the refrigerant is sealed in by closing all the on-off valves.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: December 12, 2000
    Inventor: Nikichi Aizawa
  • Patent number: 6082126
    Abstract: In order to cool a room, a cooling element fitted in the ceiling region is cooled to below the freezing point, preferably to about -40.degree. C., during the cooling phases so that condensate forming thereon freezes immediately. During regeneration phases when the room is not in use, the cooling element is defrosted and the melted condensate is caught in a condensate tray beneath the cooling element and drained via a discharge. The great temperature difference between the room to be cooled and the cooling element also makes it possible to obtain a strong cooling effect with a small cooling element, especially by indirect radiation exchange between the room and the cooling element via an intermediate ceiling. In addition, the air in the room is dehumidified since water vapour is deposited on and bonded to the cooling element in the form of ice.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: July 4, 2000
    Assignee: Barcol-Air AG
    Inventors: Helmuth Sokolean, Klaus Roschmann
  • Patent number: 5724817
    Abstract: The object of the present invention is to provide a laminated heat exchanger having a block type expansion valve which is mounted without using O-rings or screws. In the laminated heat exchanger, the block main body, which is a component of the block type expansion valve, is brazed in a furnace to a pair of intake/outlet portions that lie parallel to each other on the laminated heat exchanger. The other components of the block type expansion valve are mounted after the brazing operation. This achieves an improvement in the secureness and seal between the block main body and the intake/outlet portions. With the above arrangement, it is possible to eliminate parts used for fixing and sealing the block type expansion valve and the intake/outlet portions.
    Type: Grant
    Filed: September 11, 1995
    Date of Patent: March 10, 1998
    Assignee: Zexel Corporation
    Inventor: Kunihiko Nishishita
  • Patent number: 5657642
    Abstract: For cooling food products in a container, an apparatus is provided which includes a supply structure for supplying liquid carbon dioxide into the interior of the container and discharging liquid carbon dioxide in the interior to form a carbon dioxide flow, and also has a withdrawing structure for withdrawing carbon dioxide vapors generated in the container and moving them in the vicinity of the supplying structure, so that cold of the carbon dioxide vapors is transferred to liquid carbon dioxide supplied by the supplying structure.
    Type: Grant
    Filed: November 24, 1995
    Date of Patent: August 19, 1997
    Inventors: Lev Reznikov, Zachary Schulman
  • Patent number: 5630326
    Abstract: In order to achieve reduced production costs in an expansion valve mounting member used for mounting an expansion valve on a heat exchanger and an improvement in its suitability for mass production, the expansion valve mounting member has a pair of tubular members, each of which is formed as a pipe, with one end of the pair connecting with a pair of coolant intake/outlet portions provided parallel to each other in the heat exchanger and the other end connecting with the expansion valve. A collar is provided at a specific position on the external circumferential side surface of each tubular member. A plate member is provided with a pair of holes into which the pair of tubular members are inserted. When the tubular members are fitted into the holes of the plate member, the collars come in contact with the circumferential edges of the holes to establish positioning.
    Type: Grant
    Filed: September 13, 1995
    Date of Patent: May 20, 1997
    Assignee: Zexel Corporation
    Inventors: Kunihiko Nishishita, Seiji Inoue
  • Patent number: 5561986
    Abstract: A portable chilling unit for chilling either the whole or a selected portion of the interior of a container comprises a plurality of eutectic elements adapted for pre-chilling by exposure to liquid cryogen, a height adjustable inlet and an outlet towards the base of the unit. An insulating blanket is attachable to the inlet such that, in operation, the blanket may be placed over the cargo to be chilled and only atmosphere from under the blanket is drawn through the unit for chilling.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: October 8, 1996
    Assignee: The BOC Group plc
    Inventor: Peter F. Goodall
  • Patent number: 5467611
    Abstract: A two plate, TXV block type of connector for an automotive air conditioning system evaporator improves the security and serviceability of the connection through the use of common bolts specially designed to cooperate with matching bolt passages through the TXV valve block. The evaporator side anchor plate threads to one end of the bolts first, and is pulled tight to one side of the block as enlarged flanges on the bolts are concurrently pulled tight against a recessed shoulder in the bolt passage. Matching conical shapes on the bolt flange and bolt passage shoulder, coupled with a radial clearance between the rest of the bolt and the bolt passage, self center the bolt and compensates for any initial misalignment. The bolts protruded enough to allow the second plate to be attached, or removed later, independently, with nuts that are threaded on from the same direction.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: November 21, 1995
    Assignee: General Motors Corporation
    Inventors: Larry D. Cummings, Kurt R. Mittlefehldt
  • Patent number: 5461871
    Abstract: Air distillation installation comprising: (A) an air compressor group (1) whose output is connected to an outlet coupling (11); (B) two cylinders (2A, 2B) for the purification of air by adsorption having inlet/outlet couplings (12A, 12B); (C) a first framework (13) in which are mounted: (a) the accessories downstream of the compressor such as an assembly (14, 17) for precooling air; (b) accessories of the purification cylinders, such as an assembly of valves and a regeneration gas reheater (18); and (c) the connection conduits of the mentioned accessories, with their safety members and their automatic and/or remotely controlled valves, these conduits terminating in couplings (15, 22A, 22B, 23) for connection to other portions (1, 2A, 2B, 4) of the installation, and the corresponding monitoring, control and instrumentation members (21); (D) a second framework (31) in which are mounted: (d) the principal heat exchangers (24) and the subcoolers (25); (e) the assembly of the cold accessories such as the cryogenic
    Type: Grant
    Filed: May 24, 1994
    Date of Patent: October 31, 1995
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Gilles Bracque, Francois Dehaine, Jean-Pierre Gourbier, Daniel Gourdain, Alain Grelaud, Alain Guillard, Michel Mouliney
  • Patent number: 5415012
    Abstract: A cooling system with a vacuum tight operating system manifold line contains at least two connecting locations on which at least an operating medium evaporator and at least a sorption agent container having sorption medium therein are coupled in an airtight manner to the operating system manifold. The sorption medium container is capable of absorbing and deabsorbing operating medium vapor.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: May 16, 1995
    Assignee: Zeo-Tech GmbH
    Inventors: Peter Maier-Laxhuber, Reiner Engelhardt, Reiner Worz, Andreas Becky
  • Patent number: 5392844
    Abstract: A cooling apparatus includes a container filled with a quantity of coolant fluid initially cooled to a solid phase, a cooling loop disposed between a heat load and the container. A pump for circulating a quantity of the same type of coolant fluid in a liquid phase through the cooling loop, a pair of couplings for communicating the liquid phase coolant fluid into the container in a direct interface with the solid phase coolant fluid.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: February 28, 1995
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Curtis Lomax, Bruce Webbon
  • Patent number: 5329783
    Abstract: This invention relates to an air conditioning apparatus and in particular to one including a compressor, an evaporator, a cooling fan, a low pressure pipe, a high pressure pipe, a radiator, a cooling motor, and a condenser. The apparatus is characterized in that the heat exchanging efficiency between the cooling water and the refrigerant is highly enhanced, thereby intensifying the cooling effect and increasing the temperature of the cooling water flowing out of the apparatus to an acceptable degree for residential hot water. Further the radiator may be separated from the apparatus thus making it suitable for use in varied applications.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: July 19, 1994
    Assignee: Fast Maker Enterprise Co., Ltd.
    Inventor: Ten S. Yang
  • Patent number: 5261482
    Abstract: A cooling apparatus includes a container filled with a quantity of coolant fluid initially cooled to a solid phase, a cooling loop disposed between a heat load and the container. A pump for circulating a quantity of the same type of coolant fluid in a liquid phase through the cooling loop, a pair of couplings for communicating the liquid phase coolant fluid into the container in a direct interface with the solid phase coolant fluid.
    Type: Grant
    Filed: May 21, 1991
    Date of Patent: November 16, 1993
    Assignee: The United States of America as represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Curtis Lomax, Bruce Webbon
  • Patent number: 5169178
    Abstract: Difficulties in brazing or welding a fitting that may be utilized in a heat exchange system are avoided in a construction that includes a mounting block (100) including a formation (102) by which the block (100) may be mounted on another object such as a support (10). At least one aperture (108, 110) extends through the block (100) at a sleeve (112, 114), having opposed ends (122, 128; 158, 160) and an exterior surface (131, 155) sized to snuggly and slidably pass at least partially through the aperture (108, 110) and an interior surface (126, 150) defining a fluid passage. A pair of axially spaced grooves (140, 142; 152, 154) are in the exterior surface (131, 155) and are spaced a distance about equal to the thickness of the block (100) at the apertures (108, 110). A retaining ring (176, 178) may be located in one of the grooves (140, 152) and a retaining clip (170) is removably received in the other groove (142, 154) remote therefrom.
    Type: Grant
    Filed: June 14, 1990
    Date of Patent: December 8, 1992
    Assignee: Modine Manufacturing Co.
    Inventor: Thomas A. Hunzinger
  • Patent number: 5163716
    Abstract: A connector assembly includes a connecting block and mating adapter for attaching an automotive refrigerant line to a condenser tank. A port/passageway is provided within the connecting block to receive a nipple on the adapter for communicating fluid from the refrigerant line to the condenser tank. The connecting block is securely welded or brazed to the side wall of the condenser tank providing a secure, leak-proof joint. A retaining bolt securely maintains the connection of the adapter to the connecting block.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: November 17, 1992
    Assignee: General Motors Corporation
    Inventors: James D. Bolton, Robert C. Gmerek
  • Patent number: 5095716
    Abstract: In a room air conditioner, at least the condenser, and preferably both the compressor and the condenser, are separated from the main body of the air conditioning apparatus, and are mounted in an exteriorly facing wall, outside the room which is to be cooled. The main body of the air conditioning apparatus is connected with compressor and condensor mounted in the wall by connecting piping and fittings and is mounted on the wall by a hanging bracket and position-fixing spacer bracket.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: March 17, 1992
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hee S. You