[특허]Self restrained ductile iron fitting

[미국특허] Self restrained ductile iron fitting 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16L-019/06
출원번호	UP-0199954 (2008-08-28)
등록번호	US-7815225 (2010-11-08)
발명자 / 주소	Jones, Jim Darce, Gerardo Chinchilla, Randall Corbett, Jr., Bradford G.
출원인 / 주소	S & B Technical Products, Inc.
대리인 / 주소	Gunter, Jr., Charles D.
인용정보	피인용 횟수 : 15 인용 특허 : 24

초록 ▼

A combination sealing and restraint system for an as-cast ductile iron fitting is shown for both sealing and preventing separation of an iron pipe fitting and a mating male pipe. A ring-shaped body is installed within a mating groove provided in a mouth region of the as-cast fitting after the fitting has been cast at the manufacturing plant. The ring-shaped body carries a gripping member with teeth on an inner surface thereof which are initially angled away from an outer surface of a mating male pipe. The teeth are forced into engagement with the exterior surface of the mating male pipe as the pipe joint at the fitting is assembled. The teeth are oriented to allow movement of the male pipe in a first direction relative to an end opening of the fitting during assembly, but to resist movement in a opposite direction after the fitting joint has been assembled. The ring-shaped body also includes a relatively flexible portion formed of an elastomer which forms a sealing member with the mating male pipe.

대표청구항 ▼

We claim: 1. A combination sealing and restraint system for insertion within an annular groove provided within a mouth region located adjacent an end opening of an as-cast ductile iron fitting capable of both sealing and restraining the ductile iron fitting to a mating male pipe having an interior surface and an exterior surface, the sealing and restraint system comprising: a ring-shaped body having a relatively rigid, inflexible leading portion and a relatively more flexible trailing portion, the flexible portion being formed of a resilient elastomeric material, the flexible trailing portion of the body having an inner circumferential region and an outer circumferential region, the ring-shaped body being installed within the annular groove provided in the mouth region of the as-cast fitting so that the outer circumferential region forms a seal with the fitting mouth region and the inner circumferential region forms a sealing surface for a mating male pipe section; wherein the relatively rigid leading portion of the ring-shaped body has an exterior surface and an interior surface, and wherein the interior surface includes a C-shaped recess formed therein adjacent a leading nose portion of the ring-shaped body; a gripping ring installed within the C-shaped recess provided in the relatively rigid portion of the ring-shaped body, the gripping ring being a continuous circumferential body having a slit at one point in a circumference thereof and being made up of an inner planar surface and an outer planar surface separated by a thickness, and wherein the inner planar surface has at least one row of gripping teeth capable of engaging selected points on the exterior surface of the mating male pipe and apply a gripping force to the exterior surface; wherein the sealing surface of the annular gasket body extends further radially inward in a direction of a centerline of the mouth opening of the fitting than do the gripping teeth on the inner planar surfaces of the gripping segments; and wherein the C-shaped recess provided in the relatively rigid portion of the ring-shaped body includes a sloping wall portion which defines a ramp surface of the gripping ring as the mating male pipe is installed to form a pipe joint. 2. The combination sealing and restraint system of claim 1, wherein the ring-shaped body is formed as a dual durometer gasket having a leading portion of a relatively higher durometer rubber and a trailing portion formed of a relatively lower durometer rubber. 3. The combination sealing and restraint system of claim 1, wherein the leading portion of the ring-shaped body is formed of a hard plastic. 4. The combination sealing and restraint system of claim 1, wherein the leading portion of the ring-shaped body is formed of a metal.

이 특허에 인용된 특허 (24) 인용/피인용 타임라인 분석

Vitel Jean-Pierre,FRX ; Favier Noel,FRX ; Schneider Andre,FRX ; Lescot Didier,FRX ; Bourgin Rene,FRX, Assembly set up between two pipes, and applied pipe assembles.
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Weber Joe (Birmingham AL) Jones Lawrence S. (Hueytown AL), Bell lip restraining configuration for pressure pipe.
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Jones, Jim; Corbett, Jr., Bradford G.; Darce, Gerardo; Chinchilla, Randall, Combination seal and restraint system for plastic pipe.
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Valls Jose E. (Ponce PR), Composite gasket and fitting including same.
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Valls ; Jr. Jose E., Composite multi-pressure gasket.
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Copeland,Daniel A., Energized restraining gasket for mechanical joints of pipes.
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Walworth Van T. (Warrior AL) DeBoalt Steve L. (Birmingham AL), Gasket for field adaptable push-on restrained joint and joint thus produced.
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Vassallo Efrain D. (Ponce PR) Valls Jose E. (Ponce PR), Gasket seating ring.
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Jones, Jim; Corbett, Jr., Bradford G., Integral restraint system and method of manufacture for plastic pipe.
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Imhof Erich (Laufach DEX) Vorbeck Manfred (Laufach DEX), Joint secured against sliding.
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Percebois Alain (Blenod les Pont-A-Mousson FRX) Remy Andre (Blenod les Pont-A-Mousson FRX) Vitel Jean-Pierre (Thiaucourt-Regnieville FRX), Locking joint for pipe systems.
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Owen,William H.; Holmes, IV,William W.; Copeland,Daniel A., Mechanical pipe joint, gasket, and method for restraining pipe spigots in mechanical pipe joint bell sockets.
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Jones,Jim; Corbett, Jr.,Bradford G.; Darce,Gerardo; Chinchilla,Randall, Method of manufacturing a seal and restraining system.
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Rex, Brian; Beevor, Mark Adrian, Pipe coupling device.
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Percebois Alain (Blenod les Pont-A-Mousson FRX) Renard Philippe (Vandoeuvre les Nancy FRX) Berraud Patrick (Blenod les Pont-A-Mousson FRX), Pipe socket joint and sealing gasket therefor.
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Vobeck Manfred (Laufach DEX), Plug-in spigot-and-socket joint.
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Conner Randall C. (Warrior AL), Restrained joint having elastomer-backed locking segments.
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Weber Joe (Birmingham AL) Jones Lawrence S. (Hueytown AL), Restraining element for pressure pipe joints.
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Holmes, IV,William W.; Copeland,Daniel A., Restraining gasket for mechanical joints of pipes.
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Jones,Jim; Corbett, Jr.,Bradford G., Restraining mechanical joint gasket for ductile iron pipe.
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Jones, Jim, Self restraining gasket and pipe joint.
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Jones, Jim, Self restraining gasket and pipe joint.
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Seiler Georg (Pachmayrplatz II Munich 81 DT), Socket connection of tubes or tubular elements, in particular of metal.
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Imhof Erich (Laufach DEX) Bergmann Karl-Heinz (Hoesbach DEX) Vorbeck Manfred (Laufach DEX), Spigot-and-socket joint secured against sliding.
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이 특허를 인용한 특허 (15) 인용/피인용 타임라인 분석

Eaton, Delbert; Getzewich, Lee; Albin, David R., Fitting with draw mechanism.
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Eaton, Delbert; Getzewich, Lee; Albin, David R., Fitting with draw mechanism.
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Eaton, Delbert; Getzewich, Lee; Albin, David R., Fitting with draw mechanism.
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Bowsher, Mark A.; Firoz, Sami, Joint restraint assembly.
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Cumic, Branko; Lemke, Andy, Pipe coupling.
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Cumic, Branko; Lemke, Andy, Pipe coupling.
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Liao, Larry; Clark, Chuck, Pipe coupling and method of forming the same.
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Boelter, Ryan C.; Boelter, Claus H. H.; Dhruv, Yogesh H.; Cady, Gregory D.; Etches, Warren R., Pipe retainer.
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Gifford, Paul, Restraining joint device.
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Gifford, Paul, Restraining joint device.
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Monteil, Guillermo, Secured in place gasket for sealing plastic pipelines, method of manufacture and method of installation.
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Jones, Jim, Seismic conduit joint connector.
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Jones, Jim; Chinchilla, Randall, Self restrained ductile iron fitting.
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Patterson, Rowan Warwick; Marcantonio, Matthew; Leyden, Conor Patrick, Tubular connector.
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Vitel, Jean-Pierre; Renard, Philippe; Grojean, Daniel, Tubular joint.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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[미국특허] Self restrained ductile iron fitting 원문보기

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이 특허를 인용한 특허 (15) 인용/피인용 타임라인 분석

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[미국특허] Self restrained ductile iron fitting 원문보기

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이 특허에 인용된 특허 (24) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (15) 인용/피인용 타임라인 분석

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