US20110005639A1 - Coupling, particularly for lng - Google Patents

Coupling, particularly for lng Download PDF

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Publication number
US20110005639A1
US20110005639A1 US12/809,973 US80997308A US2011005639A1 US 20110005639 A1 US20110005639 A1 US 20110005639A1 US 80997308 A US80997308 A US 80997308A US 2011005639 A1 US2011005639 A1 US 2011005639A1
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United States
Prior art keywords
coupling
hand lever
coupling according
coupling housing
housing
Prior art date
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Abandoned
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US12/809,973
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Erwin Weh
Wolfgang Weh
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Individual
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/38—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings
    • F16L37/44—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings with one lift valve being actuated to initiate the flow through the coupling after the two coupling parts are locked against withdrawal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F16L37/121—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using freely rocking hooks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F16L37/20—Joints tightened by toggle-action levers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/037—Quick connecting means, e.g. couplings

Definitions

  • the invention relates to a coupling for connecting a coupling housing to a nipple, which are provided for feeding a cryogenic medium, in particular LNG to a vehicle tank, wherein a hand lever is pivotably arranged at the coupling housing for connecting.
  • the known couplings require high assembly expenditures.
  • the plugging/pushing connection of the coupling housings needs high surface finish and form accuracy as well as high purity of the connecting surfaces, in order to connect with small forces.
  • the plugging/pushing connection is not satisfactory as to safety, if the quick coupling socket (nipple) is a refuelling mechanism (tank lid) at the vehicle and the coupling plug is arranged at a fuel station, since the plugging connection can lead to heavy damages at the gas station and/or the vehicle when driving away in connected state.
  • the invention has the object to create a coupling for cryogenic mediums, in particular LNG, in order to improve operating safety over known couplings.
  • the handling and safety of the suggested coupling is substantially improved, since a locking element is actuated by the pivotal movement of the hand lever on connection to the nipple, preferably via collets, thus locking the hand lever in the connecting position. Any unintentional loosening of the coupling can thus be excluded in a safe manner.
  • the control of the flow path of the cryogenic medium to the nipple is achieved in type of a safe sequencing.
  • the latch of the coupling takes place in a separate step before. The same applies to uncoupling, so that it is ensured that the operator of the coupling does not come into contact with the cryogenic medium, which is reliably shut-off before unlocking of the hand lever by the control block and the control bar coupled thereto.
  • the simple structured control bar includes in particular a metal bellow, whose interior is connected to a control line.
  • the control line can be opened or closed via a control signal, as described in EP 0 889 273 A1.
  • FIG. 1 a perspective view of a coupling
  • FIG. 2 a side view on the coupling housing
  • FIG. 3 a longitudinal section of coupling shown in FIG. 2 in horizontal plane
  • FIG. 4 a longitudinal section of a control block in horizontal plane.
  • the coupling 1 shown in perspective view in FIG. 1 includes a coupling housing 11 for connecting two line ends.
  • the connection of the coupling housing 11 to a coupling nipple (here not represented) is made by several locking elements in the form of collets 30 .
  • a hand lever 15 is provided at the coupling housing 11 , which is pivotally mounted at an axis 16 and a relatively short spreading lever 17 is pivotally mounted adjacent to the axis 21 .
  • the required mechanical force is provided, which pulls the coupling housing 11 against the coupling-flat of the nipple provided with seals, wherein the spreading lever 17 achieves a power amplification in type of a toggle joint.
  • a relative small hand strength is sufficient in order to establish the coupling connection.
  • a lock sleeve 31 is shifted over the collets 30 , here to the left, to lock these in a positive manner, as described in several patents of the Applicants (e. g. EP 1 483 524 B1; internal Ref.: S 0041-P-EP).
  • a laterally projecting operation knob 22 is actuated. This operates a valve in the control block 20 (cf. FIG. 4 ), so that an input pressure at a pressure line P, e. g.
  • FIG. 1 further shows a main line 47 for feeding of the medium, likewise in FIG. 2 in side view, also indicating the section planes for. FIG. 3 and FIG. 4 with A and B.
  • a generally tubular coupling housing 11 forms an insulation chamber to prevent evaporation of deep-cold mediums, like LNG in the line ends.
  • the line ends lead to the parting plane of the coupling nipple (that is preferably connected to a fuel tank) and of the coupling housing 11 , which surrounds the main line 47 at least partially.
  • At each line end opposite valves are arranged to open or close the line ends adjacent to the respective front surfaces thereof, e.g. in the coupling housing 11 at least one seal 38 is formed of PTFE.
  • a control bar 36 is provided, which preferably also carries a seal from PTFE.
  • the control bar 36 is urged to a sealing surface via a compression spring 41 and also by a metal bellow 44 connected thereto.
  • the metal bellow 44 includes an interior chamber 45 , which is connected to a pressure generator (not represented) via a control line 46 .
  • Pressurized control fluid e. g. compressed air at 10 bar
  • the metal bellow 44 is extended in axial direction to open the medium or fluid inlet by the control bar 36 .
  • Releasing of the actuating pressure at the control line 46 (and thus the subsequent release of the fluid flow in the main line 47 ) is preferably made by a return line R at the control block 20 , as shown in FIG. 4 , i. e. only after the locking element 21 or the check pistons 21 a have “blocked” the hand lever 15 in the connecting position.
  • a return line R at the control block 20 i. e. only after the locking element 21 or the check pistons 21 a have “blocked” the hand lever 15 in the connecting position.
  • the interior 45 is balanced by means of the control line 46 .
  • the compression spring 41 pushes the control bar 36 and the metal bellow 44 into the closed position of the coupling. This is supported by the pressure in both line ends, since effective bellow and sealing surfaces cause additional closing forces.
  • the pressure at the pressure line P is also switched off, so that the check pistons 21 a retract towards the interior of the control block 20 and thus the hand lever 15 can be tilted up into its home position. Then, the lock sleeve 31 is simultaneously withdrawn and the coupling is separated, again.
  • a signal can be transmitted via the return line R on switching-off the pressure P at the control block 20 , whereby the safety standard is further increased.
  • This can be in form of a visual indication for the operator (e.g. “You can pay now/start”) or a release (“green light”) for the gas station personnel or an acoustic signal or an electronic unblocking (e.g. open a gate at the gas station).

Abstract

In order to provide an operationally secure coupling for connecting a coupling housing (11) to a nipple, which are provided for feeding a cryogenic medium, particularly LNG, to a vehicle tank, a hand lever (15) is arranged in a pivotable way on the coupling housing (11) for the connection thereof. According to the invention, on the coupling housing (11) adjacent to the hand lever (15) a control block (20) having at least one locking element (21) is provided, which locks the hand lever (15) in the connecting position.

Description

  • The invention relates to a coupling for connecting a coupling housing to a nipple, which are provided for feeding a cryogenic medium, in particular LNG to a vehicle tank, wherein a hand lever is pivotably arranged at the coupling housing for connecting.
  • There are known couplings for cryogenic mediums, which show several disadvantages concerning their connecting mechanics. DE 195 16 029 C1 or DE 4041337 A1 disclose couplings for cryogenic mediums, wherein the coupling plug is inserted into the quick coupling socket, such that the outside coupling housings overlap and a connecting element at the quick coupling socket engages with a counterpart arranged at the coupling plug, The connection is usually completed by time-consuming screwing of the coupling plug and the quick coupling socket. During this insertion of the coupling plug into the quick coupling socket, the coupling is first sealed against the environment and then the line end locks are opened.
  • Beyond that DE 41 04 711 A1 or U.S. Pat. No. 4,335,747 A1 show sealing against the environment by separate opening/closing of two ball valves. The connection of the coupling plug to the quick coupling socket is made by mechanical elements in the separating plane. The two ball valves must be separately opened or closed.
  • Further, the known couplings require high assembly expenditures. The plugging/pushing connection of the coupling housings needs high surface finish and form accuracy as well as high purity of the connecting surfaces, in order to connect with small forces. Likewise the plugging/pushing connection is not satisfactory as to safety, if the quick coupling socket (nipple) is a refuelling mechanism (tank lid) at the vehicle and the coupling plug is arranged at a fuel station, since the plugging connection can lead to heavy damages at the gas station and/or the vehicle when driving away in connected state. In addition, if refuelling of cryo-fuel containers of vehicles is made by laymen, operation of the coupling requires a simple and safe formation of the coupling, so that the operator does not come into contact with the deep-cold cryo-fuel. Thus, couplings for cryogenic mediums would be desirable, which avoid the disadvantages known from prior art.
  • The invention has the object to create a coupling for cryogenic mediums, in particular LNG, in order to improve operating safety over known couplings.
  • This object is achieved according to the invention with a coupling having the features of the claim 1. Favourable embodiments of the invention are stated in the sub-claims.
  • The handling and safety of the suggested coupling is substantially improved, since a locking element is actuated by the pivotal movement of the hand lever on connection to the nipple, preferably via collets, thus locking the hand lever in the connecting position. Any unintentional loosening of the coupling can thus be excluded in a safe manner.
  • By the operation of the coupling according to the invention also the control of the flow path of the cryogenic medium to the nipple is achieved in type of a safe sequencing. The latch of the coupling takes place in a separate step before. The same applies to uncoupling, so that it is ensured that the operator of the coupling does not come into contact with the cryogenic medium, which is reliably shut-off before unlocking of the hand lever by the control block and the control bar coupled thereto.
  • The simple structured control bar includes in particular a metal bellow, whose interior is connected to a control line. The control line can be opened or closed via a control signal, as described in EP 0 889 273 A1.
  • An embodiment of the invention is shown in the drawing shown and described in the following in detail. Here show:
  • FIG. 1 a perspective view of a coupling;
  • FIG. 2 a side view on the coupling housing;
  • FIG. 3 a longitudinal section of coupling shown in FIG. 2 in horizontal plane; and
  • FIG. 4 a longitudinal section of a control block in horizontal plane.
    •
  • The coupling 1 shown in perspective view in FIG. 1 includes a coupling housing 11 for connecting two line ends. The connection of the coupling housing 11 to a coupling nipple (here not represented) is made by several locking elements in the form of collets 30. For this purpose a hand lever 15 is provided at the coupling housing 11, which is pivotally mounted at an axis 16 and a relatively short spreading lever 17 is pivotally mounted adjacent to the axis 21. On moving the hand lever 15 the required mechanical force is provided, which pulls the coupling housing 11 against the coupling-flat of the nipple provided with seals, wherein the spreading lever 17 achieves a power amplification in type of a toggle joint. Thus, a relative small hand strength is sufficient in order to establish the coupling connection.
  • When swivelling the hand lever 15 (cf. arrow in FIG. 2), first, a lock sleeve 31 is shifted over the collets 30, here to the left, to lock these in a positive manner, as described in several patents of the Applicants (e. g. EP 1 483 524 B1; internal Ref.: S 0041-P-EP). On the other hand, when swivelling the hand lever 15 to a control block 20, which is fitted onto the coupling housing 11 or integrally formed with this, a laterally projecting operation knob 22 is actuated. This operates a valve in the control block 20 (cf. FIG. 4), so that an input pressure at a pressure line P, e. g. compressed air at 5 bar, pushes at least a locking element 21 in the control block 20 outwards, thus preventing movement of the hand lever 15 in this connection position. The locking element 21 is preferably arranged at both sides of the control block 20 in the form of symmetrically extensible check pistons 21 a (cf. FIG. 4). FIG. 1 further shows a main line 47 for feeding of the medium, likewise in FIG. 2 in side view, also indicating the section planes for. FIG. 3 and FIG. 4 with A and B.
  • As apparent from the longitudinal section in FIG. 3 (in horizontal central plane) a generally tubular coupling housing 11 forms an insulation chamber to prevent evaporation of deep-cold mediums, like LNG in the line ends. The line ends lead to the parting plane of the coupling nipple (that is preferably connected to a fuel tank) and of the coupling housing 11, which surrounds the main line 47 at least partially. At each line end opposite valves are arranged to open or close the line ends adjacent to the respective front surfaces thereof, e.g. in the coupling housing 11 at least one seal 38 is formed of PTFE.
  • In order to open or close the supply at the coupling housing 11 a control bar 36 is provided, which preferably also carries a seal from PTFE. The control bar 36 is urged to a sealing surface via a compression spring 41 and also by a metal bellow 44 connected thereto. The metal bellow 44 includes an interior chamber 45, which is connected to a pressure generator (not represented) via a control line 46. Pressurized control fluid (e. g. compressed air at 10 bar) is supplied to the interior 45 via the control line 46, so that the metal bellow 44 is extended in axial direction to open the medium or fluid inlet by the control bar 36.
  • On swivelling the hand lever 15 to the control block 20 and the force amplification mechanism of the spreading lever 17 the coupling nipple and the coupling housing 11 are pressed to each other and solidly locked in a positive manner by the collets 30. In this tight position flow of the cryogenic medium is not possible, yet. Only by switching the actuating pressure via the control line 46 the interior 45 of the bellow 44 is supplied with pressure. Then, the bellow moves the control bar 36 holding the seal 38 towards the nipple side. Thus, the coupling housing 11 and the coupling nipple are in open positions. The two line ends are now connected with each other and the cryogenic medium can flow.
  • Releasing of the actuating pressure at the control line 46 (and thus the subsequent release of the fluid flow in the main line 47) is preferably made by a return line R at the control block 20, as shown in FIG. 4, i. e. only after the locking element 21 or the check pistons 21 a have “blocked” the hand lever 15 in the connecting position. Thus, a particularly high connection security is achieved.
  • After completion of the medium flow (f. i. a certain filling amount of the fuel tank is achieved via the nipple) the interior 45 is balanced by means of the control line 46. Thus, the compression spring 41 pushes the control bar 36 and the metal bellow 44 into the closed position of the coupling. This is supported by the pressure in both line ends, since effective bellow and sealing surfaces cause additional closing forces. At the same time or with a small time delay the pressure at the pressure line P is also switched off, so that the check pistons 21 a retract towards the interior of the control block 20 and thus the hand lever 15 can be tilted up into its home position. Then, the lock sleeve 31 is simultaneously withdrawn and the coupling is separated, again.
  • For confirming or acknowledgement of the flow disconnection a signal can be transmitted via the return line R on switching-off the pressure P at the control block 20, whereby the safety standard is further increased. This can be in form of a visual indication for the operator (e.g. “You can pay now/start”) or a release (“green light”) for the gas station personnel or an acoustic signal or an electronic unblocking (e.g. open a gate at the gas station).

Claims (11)

1. A coupling for connecting a coupling housing to a nipple, which are provided for feeding a cryogenic medium, in particular LNG to a vehicle tank, wherein a hand lever is pivotably arranged at the coupling housing for connecting, wherein a control block is arranged at the coupling housing adjacent to the hand lever and includes at least one locking element, which locks the hand lever in connecting position.
2. The coupling according to claim 1, wherein the locking element is formed as a check piston being extensible in transverse direction to the pivoting plane of the hand lever.
3. The coupling according to claim 1, wherein the control block includes two locking elements aligned in opposite directions.
4. The coupling according to claim 1, wherein the control block is fitted onto the coupling housing.
5. The coupling according to claim 1, wherein a control bar having a front seal is arranged in the coupling housing in a slidable manner and directed to the nipple.
6. The coupling according to claim 5, wherein the control bar is surrounded by a compression spring.
7. The coupling according to claim 1, wherein the coupling housing includes several, in particular six collets.
8. The coupling according to claim 7, wherein the collets are surrounded by a lock sleeve, which supports one end of the hand lever.
9. The coupling according to claim 1, wherein a spreading lever is hinged at the hand lever close to its pivot axis and connected to the coupling housing with the other end.
10. The coupling according to claim 1, wherein the control block includes an operation knob, which is forced by the hand lever in connecting position.
11. The coupling according to claim 1, wherein the control bar is forced by a bellow, preferably metal bellow, which is connected to a control line.
US12/809,973 2007-12-22 2008-12-17 Coupling, particularly for lng Abandoned US20110005639A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202007018142U DE202007018142U1 (en) 2007-12-22 2007-12-22 Clutch, especially for LNG
DE202007018142.6 2007-12-22
PCT/EP2008/010734 WO2009080260A1 (en) 2007-12-22 2008-12-17 Coupling, particularly for lng

Publications (1)

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US20110005639A1 true US20110005639A1 (en) 2011-01-13

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US12/809,973 Abandoned US20110005639A1 (en) 2007-12-22 2008-12-17 Coupling, particularly for lng

Country Status (10)

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US (1) US20110005639A1 (en)
EP (1) EP2229551A1 (en)
JP (1) JP2011508163A (en)
KR (1) KR20100126663A (en)
CN (1) CN101946113B (en)
AU (1) AU2008340701A1 (en)
CA (1) CA2712592A1 (en)
DE (1) DE202007018142U1 (en)
EA (1) EA201001046A1 (en)
WO (1) WO2009080260A1 (en)

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WO2014143881A1 (en) * 2013-03-15 2014-09-18 Eaton Corporaton Hydrant coupler with articulating handle assembly
US9175795B2 (en) 2012-05-29 2015-11-03 Parker-Hannifin Corporation Coupling with locking bars
US20160047505A1 (en) * 2011-03-21 2016-02-18 Engineered Controls International, Llc Rapid-connect coupler with vent-stop
US9732893B2 (en) 2010-08-10 2017-08-15 Engineered Controls International, Llc Rapid-connect coupler
EP3246618A1 (en) 2016-05-18 2017-11-22 Transportes Ham Lng nozzle safety locking mechanism
US9897239B2 (en) 2015-04-27 2018-02-20 Engineered Controls International, Llc Rapid-connect coupler with vent stop
USD820417S1 (en) * 2017-01-30 2018-06-12 Eric A Topacio Hose coupling
US10184612B2 (en) 2014-01-21 2019-01-22 Cavagna Group Spa Propane fill adaptor for vehicles
US10386017B2 (en) 2015-12-03 2019-08-20 Engineered Controls International, Llc Low emission nozzles and receptacles
US10393301B1 (en) * 2015-07-15 2019-08-27 Fastest, Inc. Fluid connectors with bellows
US20190333420A1 (en) * 2018-04-30 2019-10-31 Fastest, Inc. Quick connect fluid connector with tube variation tolerance and connection verification
US10793417B2 (en) 2015-11-03 2020-10-06 Brugg Rohr Ag Holding Device for fuelling motor vehicles with liquefied gas
WO2021050500A1 (en) * 2019-09-09 2021-03-18 Engineered Controls International, Llc Coupling nozzle for cryogenic fluid
US20210078509A1 (en) * 2018-05-01 2021-03-18 Thetford Bv Discharge device for vehicle wastewater management system
US11415254B2 (en) * 2016-08-02 2022-08-16 Fastest, Inc. Internal thread grip fluid connector
US11447160B2 (en) * 2018-09-18 2022-09-20 Vogelsang Gmbh & Co Kg Extraction device for discharging mixed fluid, in particular containing feces, from a collecting tank

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Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3301272A (en) * 1963-07-19 1967-01-31 Lear Siegler Inc Quick connect coupling
US3330313A (en) * 1965-02-25 1967-07-11 Emco Wheaton Supply and receiver coupler
US4335747A (en) * 1979-10-26 1982-06-22 Aisin Seiki Kabushiki Kaisha Connecting device for conduits
US5095947A (en) * 1988-05-05 1992-03-17 Erwin Weh Pressure-sealed plug coupling
US5690152A (en) * 1995-09-20 1997-11-25 Buck Werke Gmbh & Co. Device for coupling containers
US6035894A (en) * 1996-07-30 2000-03-14 Weh Gmbh Verbindungstechnik Coupling device for rapid connection
US6202692B1 (en) * 1999-03-30 2001-03-20 Gustav Schumacher Device for coupling hydraulic lines
US6375152B1 (en) * 1997-05-22 2002-04-23 Weh, Gmbh Quick-connect coupling
US6408880B1 (en) * 1999-03-13 2002-06-25 Carl Kurt Walther Gmbh & Co. Kg Plug-in coupling for connecting pipelines, hoses or similar
US20070170719A1 (en) * 2006-01-06 2007-07-26 Lambert Todd D Push-To-Connect Mechanism and Method, For A Coupling
US7267140B2 (en) * 2002-03-02 2007-09-11 Erwin Weh Connecting coupling with a switch unit
US20070289650A1 (en) * 2000-07-28 2007-12-20 Krywitsky Lee A Fluid system coupling with handle actuating member
US20080128034A1 (en) * 2006-12-01 2008-06-05 Dixon Valve And Coupling Company Handle Lever Locking Mechanism for Dry Disconnect Coupler
US7424897B2 (en) * 2002-03-02 2008-09-16 Erwin Weh Connection coupling
US20080223486A1 (en) * 2004-07-14 2008-09-18 Erwin Weh Locking Device for a Quick-Action Connection Coupling
US20090167019A1 (en) * 2005-05-21 2009-07-02 Erwin Weh Actuating device for a rapid coupling
US20110272937A1 (en) * 2008-11-06 2011-11-10 Cejn Ab Coupling
US20120090713A1 (en) * 2010-10-19 2012-04-19 Robert Charles Cooley Grease delivery receiver and nozzle couplable without fluid pressure bleed-down and having pressurization lockout and flush face coupling

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4041337C2 (en) 1990-12-21 1996-05-23 Bayerische Motoren Werke Ag Coupling for fluids
DE4104711C2 (en) 1991-02-15 1995-08-24 Linde Ag Coupling for vacuum-insulated pipe or hose lines and use of such a coupling
DE19516029C1 (en) 1995-05-04 1996-10-10 Messer Griesheim Gmbh Coupling for ends of piping carrying low temp. media
DE19727655A1 (en) 1997-06-30 1999-01-07 Messer Griesheim Gmbh Coupling for connecting vacuum-insulated cable ends
DE20203247U1 (en) * 2002-03-02 2003-04-17 Weh Erwin Connection coupling with data interface
JP3389241B1 (en) * 2002-05-07 2003-03-24 ジェー・シー・カーター・ジャパン株式会社 Cryogenic fluid coupling
CN2876502Y (en) * 2006-03-24 2007-03-07 苏州仁和(老河口)汽车有限公司 High pressure pipeline fast insersion joint device

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3301272A (en) * 1963-07-19 1967-01-31 Lear Siegler Inc Quick connect coupling
US3330313A (en) * 1965-02-25 1967-07-11 Emco Wheaton Supply and receiver coupler
US4335747A (en) * 1979-10-26 1982-06-22 Aisin Seiki Kabushiki Kaisha Connecting device for conduits
US5095947A (en) * 1988-05-05 1992-03-17 Erwin Weh Pressure-sealed plug coupling
US5690152A (en) * 1995-09-20 1997-11-25 Buck Werke Gmbh & Co. Device for coupling containers
US6035894A (en) * 1996-07-30 2000-03-14 Weh Gmbh Verbindungstechnik Coupling device for rapid connection
US6375152B1 (en) * 1997-05-22 2002-04-23 Weh, Gmbh Quick-connect coupling
US6408880B1 (en) * 1999-03-13 2002-06-25 Carl Kurt Walther Gmbh & Co. Kg Plug-in coupling for connecting pipelines, hoses or similar
US6202692B1 (en) * 1999-03-30 2001-03-20 Gustav Schumacher Device for coupling hydraulic lines
US20070289650A1 (en) * 2000-07-28 2007-12-20 Krywitsky Lee A Fluid system coupling with handle actuating member
US7267140B2 (en) * 2002-03-02 2007-09-11 Erwin Weh Connecting coupling with a switch unit
US7424897B2 (en) * 2002-03-02 2008-09-16 Erwin Weh Connection coupling
US20080223486A1 (en) * 2004-07-14 2008-09-18 Erwin Weh Locking Device for a Quick-Action Connection Coupling
US8061394B2 (en) * 2004-07-14 2011-11-22 Erwin Weh Locking device for a quick-action connection coupling
US20090167019A1 (en) * 2005-05-21 2009-07-02 Erwin Weh Actuating device for a rapid coupling
US8028727B2 (en) * 2005-05-21 2011-10-04 Erwin Weh Actuating device for a rapid coupling
US20070170719A1 (en) * 2006-01-06 2007-07-26 Lambert Todd D Push-To-Connect Mechanism and Method, For A Coupling
US7681925B2 (en) * 2006-01-06 2010-03-23 Parker-Hannfin Corporation Push-to-connect mechanism and method, for a coupling
US20080128034A1 (en) * 2006-12-01 2008-06-05 Dixon Valve And Coupling Company Handle Lever Locking Mechanism for Dry Disconnect Coupler
US20110272937A1 (en) * 2008-11-06 2011-11-10 Cejn Ab Coupling
US20120090713A1 (en) * 2010-10-19 2012-04-19 Robert Charles Cooley Grease delivery receiver and nozzle couplable without fluid pressure bleed-down and having pressurization lockout and flush face coupling

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9732893B2 (en) 2010-08-10 2017-08-15 Engineered Controls International, Llc Rapid-connect coupler
US10281073B2 (en) 2010-08-10 2019-05-07 Engineered Controls International, Llc Rapid-connect coupler
EP3511603A1 (en) * 2011-03-21 2019-07-17 Engineered Controls International, LLC Rapid-connect coupler with vent-stop
US20160047505A1 (en) * 2011-03-21 2016-02-18 Engineered Controls International, Llc Rapid-connect coupler with vent-stop
US9857010B2 (en) * 2011-03-21 2018-01-02 Engineered Controls International, Llc Rapid-connect coupler with vent-stop
US10718456B2 (en) 2011-03-21 2020-07-21 Engineered Controls International, Llc Rapid-connect coupler with vent-stop
US20130099482A1 (en) * 2011-10-25 2013-04-25 Staubli Faverges Coupling device and connector including such a device
US9175795B2 (en) 2012-05-29 2015-11-03 Parker-Hannifin Corporation Coupling with locking bars
US9676495B2 (en) 2013-03-15 2017-06-13 Eaton Corporation Hydrant coupler with articulating handle assembly
WO2014143881A1 (en) * 2013-03-15 2014-09-18 Eaton Corporaton Hydrant coupler with articulating handle assembly
US10184612B2 (en) 2014-01-21 2019-01-22 Cavagna Group Spa Propane fill adaptor for vehicles
US9897239B2 (en) 2015-04-27 2018-02-20 Engineered Controls International, Llc Rapid-connect coupler with vent stop
US10208877B2 (en) 2015-04-27 2019-02-19 Engineered Controls International, Llc Rapid-connect coupler with vent stop
US10393301B1 (en) * 2015-07-15 2019-08-27 Fastest, Inc. Fluid connectors with bellows
US10793417B2 (en) 2015-11-03 2020-10-06 Brugg Rohr Ag Holding Device for fuelling motor vehicles with liquefied gas
US11162641B2 (en) 2015-12-03 2021-11-02 Engineered Controls International Low emission nozzles and receptacles
US10883665B2 (en) 2015-12-03 2021-01-05 Engineered Controls International, Llc Low emission nozzles and receptacles
US10386017B2 (en) 2015-12-03 2019-08-20 Engineered Controls International, Llc Low emission nozzles and receptacles
US11796135B2 (en) 2015-12-03 2023-10-24 Engineered Controls International, Llc Low emission receptacles
EP3246618A1 (en) 2016-05-18 2017-11-22 Transportes Ham Lng nozzle safety locking mechanism
US10343891B2 (en) * 2016-05-18 2019-07-09 Transportes Ham, S.L.U. LNG nozzle safety locking mechanism
US11415254B2 (en) * 2016-08-02 2022-08-16 Fastest, Inc. Internal thread grip fluid connector
USD820417S1 (en) * 2017-01-30 2018-06-12 Eric A Topacio Hose coupling
US10741103B2 (en) * 2018-04-30 2020-08-11 Fastest, Inc. Quick connect fluid connector with tube variation tolerance and connection verification
US20190333420A1 (en) * 2018-04-30 2019-10-31 Fastest, Inc. Quick connect fluid connector with tube variation tolerance and connection verification
US20210078509A1 (en) * 2018-05-01 2021-03-18 Thetford Bv Discharge device for vehicle wastewater management system
US11912213B2 (en) * 2018-05-01 2024-02-27 Thetford Bv Discharge device for vehicle wastewater management system
US11447160B2 (en) * 2018-09-18 2022-09-20 Vogelsang Gmbh & Co Kg Extraction device for discharging mixed fluid, in particular containing feces, from a collecting tank
WO2021050500A1 (en) * 2019-09-09 2021-03-18 Engineered Controls International, Llc Coupling nozzle for cryogenic fluid
CN114364909A (en) * 2019-09-09 2022-04-15 国际工程控制公司 Coupling nozzle for cryogenic fluids
US11262012B2 (en) 2019-09-09 2022-03-01 Engineered Controls International, Llc Coupling nozzle for cryogenic fluid

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WO2009080260A1 (en) 2009-07-02
EA201001046A1 (en) 2011-02-28
DE202007018142U1 (en) 2009-03-05
CN101946113B (en) 2012-05-30
KR20100126663A (en) 2010-12-02
CN101946113A (en) 2011-01-12
EP2229551A1 (en) 2010-09-22

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