Source: http://www.google.ca/patents/US5113900
Timestamp: 2013-12-06 06:42:47
Document Index: 660735004

Matched Legal Cases: ['art 14', 'art 16', 'art 16', 'art 14', 'arts 14', 'art 16', 'art 16']

Patent US5113900 - Check valve with quick lock attachment feature - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Advanced Patent Search | Sign inAdvanced Patent SearchPatentsA check valve includes first and second valve body parts. The first valve body part defines a protruding neck and the second valve body part defines a receiving flange sized to received the protruding neck in a telescoping manner. A snap fit retaining mechanism includes a set of hooks on the second valve...http://www.google.ca/patents/US5113900?utm_source=gb-gplus-sharePatent US5113900 - Check valve with quick lock attachment featurePublication numberUS5113900 APublication typeGrantApplication numberUS 07/648,549Publication date19 May 1992Filing date30 Jan 1991Priority date30 Jan 1991Fee statusPaidAlso published asCA2059965A1, CA2059965C, EP0497569A1Publication number07648549, 648549, US 5113900 A, US 5113900A, US-A-5113900, US5113900 A, US5113900AInventorsMajor H. GilbertOriginal AssigneeBridge Products, Inc.Patent Citations (53), Non-Patent Citations (7), Referenced by (20), Classifications (17), Legal Events (17) External Links: USPTO, USPTO Assignment, EspacenetCheck valve with quick lock attachment featureUS 5113900 AAbstract A check valve includes first and second valve body parts. The first valve body part defines a protruding neck and the second valve body part defines a receiving flange sized to received the protruding neck in a telescoping manner. A snap fit retaining mechanism includes a set of hooks on the second valve body part and a hook receiving groove on the first valve body part. The hooks are shaped to engage the groove to hold the first and second valve body parts together as an assembly, with the neck received in the flange. A central passageway extends through the first and second valve body parts, and a valve seat is defined around the central passageway. A valve pin is mounted in the central passageway to releasably seal against the valve seat.
I claim: 1. A check valve comprising:first and second valve body parts; a protruding neck formed on the first valve body part; a receiving flange formed on the second body part and sized to receive the protruding neck in a telescoping a snap fit retaining mechanism comprising at least one hook element on one of the first and second valve body parts and at least one hook receiving element on the other of the first and second valve body parts, said hook element shaped to engage the hook receiving element to hold the first and second valve body parts together as a valve body assembly, with the neck received in the flange; said valve body assembly defining a central passageway extending through the first and second valve body parts; a valve seat defined around the central passageway of the valve body assembly; a valve pin mounted in the central passageway to releasably seal against the valve seat; and a locking element mounted on the flange for selectively locking the hook element in engagement with the hook receiving element. 2. A check valve comprising:first and second valve body parts; a protruding neck formed on the first valve body part; a receiving flange formed on the second body part and sized to receive the protruding neck in a telescoping manner; a snap fit retaining mechanism comprising at least one hook element on one of the first and second valve body parts and at least one hook receiving element on the other of the first and second valve body parts, said hook element shaped to engage the hook receiving element to hold the first and second valve body parts together as a valve body assembly, with the neck received in the flange; said valve body assembly defining a central passageway extending through the first and second valve body parts; a valve seat defined around the central passageway of the valve body assembly; a valve pin assembly mounted in the central passageway to releasably seal against the valve seat; and a slide mounted around the flange for reciprocating movement between a first position, in which the slide is spaced from the hook and hook receiving elements to allow the hook element to engage the hook receiving element, and a second position in which the slide locks the hook element in engagement with the hook receiving element. 3. The invention of claim 2 further comprising an O-ring seal disposed between the neck and the flange, wherein the slide is dimensioned to compress the flange against the O-ring seal when in the second position.
BACKGROUND OF THE INVENTION This invention relates to check valves such as check valves used for air conditioner system charging valves, and in particular to an improved check valve having a quick lock attachment feature that reduces or eliminates the need for threaded connections in the valve itself.
SUMMARY OF THE INVENTION According to this invention, a check valve is provided which comprises first and second valve body parts. A protruding neck is formed on the first valve body part and a receiving flange is formed on the second valve body part. This receiving flange is sized to receive the protruding neck in a telescoping manner. A snap fit retaining mechanism comprises at least one hook element on one of the first and second valve body parts and at least one hook receiving element on the other of the first and second valve body parts. The hook element is shaped to engage the hook receiving element to hold the first and second valve body parts together as a valve body assembly, with the neck received in the flange. A central passageway extends through the first and second valve body parts, and a valve seat is defined around the central passageway. A valve pin is mounted in the central passageway to releasably seal against the valve seat.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of a check valve which incorporates a first preferred embodiment of this invention.
DETAILED DESCRIPTION OF THE PRESENTLY PREFERRED EMBODIMENTS Turning now to the drawings, FIG. 1 shows a sectional view of a check valve 10 which incorporates a presently preferred embodiment of this invention. The check valve 10 includes a valve body assembly 12 which is made up of a first valve body part 14 and a second valve body part 16. A central passageway 18 extends longitudinally through the valve body assembly 12 along a longitudinal axis A.
The second valve body part 16 defines an outer sidewall 56 and an inner sidewall 58. The inner sidewall 58 is shaped to receive the neck 22 in a telescoping manner. In this embodiment the outer sidewall 56 is generally frusto-conical in shape, with a larger diameter adjacent the hooks 50 and a smaller diameter adjacent the recess 42. By way of example, the angle of taper may be approximately 2
OPERATION In operation the first valve body part 14 is first installed on a tube (not shown) by brazing the braze port 20 in place. Prior to assembly of the valve body parts 14, 16, the valve pin 66 is inserted in the retainer 60, and the retainer 60 is positively secured in place in the second valve body part 16, as for example by spin welding, ultrasonic welding, a suitable adhesive or a press fit. The sealing effectiveness of the assembled second valve body part 16 can be tested in order to insure proper operation prior to final assembly.
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II PLASTIC HOUSING (undated).* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS5988705 *24 May 199323 Nov 1999Pilot Industries, Inc.Quick connect couplingUS6039073 *2 Mar 199921 Mar 2000International Valve CorporationCheck valveUS6048269 *22 Jan 199311 Apr 2000Mgm Grand, Inc.Coinless slot machine system and methodUS6067530 *13 Oct 199523 May 2000Brooks Armored Car Services, Inc.Cash management systemUS6155607 *4 Feb 19995 Dec 2000Parker-Hannifin CorporationQuick connect couplingUS6394504 *4 Apr 200028 May 2002General Motors CorporationClampless fluid transfer hose couplingUS6397884 *24 Sep 20014 Jun 2002Tokai Rubber Industries, Ltd.Connection structure and valved connection memberUS6488320 *4 Sep 20013 Dec 2002Pilot Industries, Inc.Quick connect couplingUS6820695 *11 Jul 200223 Nov 2004Halliburton Energy Services, Inc.Snap-lock seal for seal valve assemblyUS6851726 *23 Dec 20028 Feb 2005John T. MinemyerRadial conduit coupling system and methodUS6866062 *10 Sep 200215 Mar 2005Control Devices, IncorporatedCheck valveUS7222637 *19 Sep 200329 May 2007Honda Motor Co., Ltd.Connector equipped with a valveUS74543633 Aug 200018 Nov 2008IgtMethod and apparatus for voucher sorting and reconciliation in soft count processUS78370561 Dec 200523 Nov 2010The Last Straw LlcSnap-fit valveUS793462010 Jan 20053 May 2011The Last Straw, LlcLeakage protectionUS8210201 *17 Mar 20083 Jul 2012Honeywell International Inc.Regulator valve with locking systemUS8230875 *21 Dec 200531 Jul 2012Cambridge Brass, Inc.Check valveUS20100257916 *12 Apr 201014 Oct 2010Ip Innovative Products, LlcAccuracy enhancing valve assembly and related method of useWO2007065131A1 *30 Nov 20067 Jun 2007Last Straw LlcSnap-fit valveWO2009015900A1 *1 Aug 20085 Feb 2009Weh ErwinValve component* Cited by examinerClassifications U.S. Classification137/515.5, 137/542, 285/319, 285/921, 285/315International ClassificationF16L37/133, F16K27/02, F16K15/06Cooperative ClassificationY10S285/921, F16K27/0209, F16K15/063, F16L37/138, F16L37/133European ClassificationF16K27/02B, F16L37/133, F16K15/06C, F16L37/138Legal EventsDateCodeEventDescription23 May 2013ASAssignmentOwner name: BARCLAYS BANK PLC, NEW YORKEffective date: 20130523Free format text: AMENDED AND RESTATED SECURITY INTEREST;ASSIGNOR:SCHRADER-BRIDGEPORT INTERNATIONAL, INC.;REEL/FRAME:030487/009327 Apr 2012ASAssignmentFree format text: RELEASE BY SECURED PARTY;ASSIGNOR:CITICORP USA, INC.;REEL/FRAME:028119/0027Free format text: SECURITY AGREEMENT;ASSIGNOR:SCHRADER-BRIDGEPORT INTERNATIONAL, INC.;REEL/FRAME:028117/0631Owner name: BARCLAYS BANK PLC, NEW YORKEffective date: 20120427Owner name: SCHRADER-BRIDGEPORT INTERNATIONAL, INC., TENNESSEEFree format text: RELEASE BY SECURED PARTY;ASSIGNOR:WILMINGTON TRUST, N.A., SUCCESSOR TO WILMINGTON TRUST FSB;REEL/FRAME:028119/0211Effective date: 20120427Free format text: SECURITY AGREEMENT;ASSIGNOR:SCHRADER-BRIDGEPORT INTERNATIONAL, INC.;REEL/FRAME:028117/0429Owner name: SCHRADER ELECTRONICS, INC., TENNESSEEEffective date: 20120427Effective date: 2012042730 Dec 2010ASAssignmentEffective date: 20100929Owner name: WILMINGTON TRUST FSB, AS COLLATERAL AGENT, CONNECTFree format text: SECOND LIEN NOTES PATENT SECURITY AGREEMENT;ASSIGNORS:AIR SYSTEM COMPONENTS, INC.;AQUATIC CO.;DEXTER AXLE COMPANY;AND OTHERS;REEL/FRAME:025560/005729 Dec 2010ASAssignmentEffective date: 20100929Free format text: SECURITY AGREEMENT;ASSIGNORS:AIR SYSTEM COMPONENTS, INC.;AQUATIC CO.;DEXTER AXLE COMPANY;AND OTHERS;REEL/FRAME:025549/0407Owner name: CITICORP USA, INC., AS COLLATERAL AGENT, NEW YORK18 Nov 2003FPAYFee paymentYear of fee payment: 1222 Jun 1999FPAYFee paymentYear of fee payment: 819 May 1998ASAssignmentOwner name: SCHRADER-BRIDGEPORT INTERNATIONAL, INC., ILLINOISFree format text: RELEASE OF SECURITY INTEREST;ASSIGNOR:CREDIT AGRICOLE INDOSUEZ;REEL/FRAME:009178/0973Effective date: 199804142 Mar 1998ASAssignmentOwner name: SCHRADER-BRIDGEPORT INTERNATIONAL, INC., ILLINOISFree format text: MERGER;ASSIGNOR:BRIDGE PRODUCTS, INC.;REEL/FRAME:009015/0403Effective date: 1996062516 Sep 1996ASAssignmentOwner name: BANQUE INDOSUEZ, NEW YORK BRANCH, NEW YORKFree format text: SECURITY INTEREST;ASSIGNOR:SCHRADER-BRIDGEPORT INTERNATIONAL, INC.;REEL/FRAME:008006/0462Effective date: 199609041 Jul 1996ASAssignmentOwner name: SCHRADER-BRIDGEPORT INTERNATIONAL, INC., ILLINOISFree format text: MERGER;ASSIGNOR:BRIDGE PRODUCTS, INC.;REEL/FRAME:007888/0265Effective date: 199606251 Jul 1996AS03MergerOwner name: BRIDGE PRODUCTS, INC.Owner name: SCHRADER-BRIDGEPORT INTERNATIONAL, INC. SUITE 375Effective date: 199606252 May 1996AS99Other assignmentsFree format text: BANQUE INDOSUEZ, NEW YORK BRANCH, AS COLLATERAL AGENT 1211 AVENUE OF THE AMERICA * BRIDGE PRODUCTS,INC. : 19960430 OTHER CASES: NONE; SUBSIDIARY INTELLECTUAL PROPERTY SECURITY AGREEMENT2 May 1996ASAssignmentOwner name: BANQUE INDOSUEZ, NEW YORK BRANCH, AS COLLATERAL AGFree format text: SUBSIDIARY INTELLECTUAL PROPERTY SECURITY AGREEMENT;ASSIGNOR:BRIDGE PRODUCTS, INC.;REEL/FRAME:007795/0414Effective date: 199604305 Sep 1995FPAYFee paymentYear of fee payment: 49 May 1995CCCertificate of correction30 Jan 1991ASAssignmentOwner name: BRIDGE PRODUCTS, INC., A DE CORP., ILLINOISFree format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GILBERT, MAJOR H.;REEL/FRAME:005601/0079Effective date: 1991012830 Jan 1991AS02Assignment of assignor's interestOwner name: BRIDGE PRODUCTS, INC., NORTHBROOK, IL A DE CORP.Owner name: GILBERT, MAJOR H.Effective date: 19910128RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google