Toggle Ring Type Patents (Class 285/340)
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Patent number: 8764066Abstract: A first component has a major section and a coaxial minor section. The major section has an open forward end. A forward annular projection extends radially inwardly from the major section adjacent to the open forward end. A second component has a major section and a coaxial minor section. The major section has an open rearward end. A rearward annular projection extends radially outwardly from the major section adjacent to the open rearward end. Axially spaced annular recesses are provided in the rearward annular projection with an O-ring in each annular recess. The O-rings are slidably received and in sliding contact with the major section of the first component.Type: GrantFiled: September 21, 2012Date of Patent: July 1, 2014Inventors: Tyler S. Rice, Sean F. Stockhausen
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Patent number: 8746752Abstract: An inner tubular portion (15) and an outer tubular portion (16) form an insertion space (14) of a plastic pipe (11) and are integrally formed on a joint main body (13). A cap (29) is connected to the outer tubular portion (16) by projection-recess engagement. A retainer mechanism (27) of the plastic pipe (11) is provided between the outer tubular portion (16) and the cap (29). A cutout portion (20) is formed in the outer tubular portion (16), and a bulging engagement portion (24) is arranged on the cutout portion (20). The outer periphery of the bulging engagement portion (24) is connected to the cap (29) by the projection-recess engagement. A restricting portion is provided between the cutout portion (20) and the bulging engagement portion (24). The restricting portion is composed of a first tapered surface (21) and a second tapered surface (25). The first tapered surface (21) is provided on the cutout portion (20) and decreases in width toward the outer end.Type: GrantFiled: February 22, 2012Date of Patent: June 10, 2014Assignee: Onda Mfg. Co., Ltd.Inventors: Nobuhiko Hayashi, Hajime Imura
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Publication number: 20140152002Abstract: A push fitting joint packaging arrangement allows the re-use and repair of push-to-connect fittings and valves without damage to the fitting or valve elements or the pipe, and without coining, gluing or threaded engagement of parts. In one embodiment of the present invention, the arrangement comprises a split fastening ring and a split O-ring support member.Type: ApplicationFiled: February 1, 2013Publication date: June 5, 2014Applicant: Quick Fitting, Inc.Inventor: Quick Fitting, Inc.
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Publication number: 20140054889Abstract: Fitting for at least one pipe, having a main body for internally accommodating said at least one pipe, fastening means able to be tightened to the main body, at least one deformable annular sealing gasket and at least one blocking ring nut which can be positioned within the fitting between the main body and the fastening means, respectively, to ensure the sealing of, and block in firm position, the pipe, at least when the fastening means are tightened to the main body, the blocking ring nut being elastically deformable at least in radial direction. The fitting also has means for retaining in a widened position at least the mouth section of the at least one annular sealing gasket, with an inner diameter greater than the outer diameter of the at least one pipe.Type: ApplicationFiled: March 26, 2012Publication date: February 27, 2014Applicant: EFFEBI S.P.A.Inventor: Ermanno Tanghetti
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Patent number: 8608205Abstract: A fluid pipe connection device includes a plug sleeve fixedly fastened and mounted on a pipe joint used for mounting an internal tooth snap ring and a push tooth ring in the pipe joint and the plug sleeve. The internal tooth snap ring clamps the pipe wall after the pipe passes through the plug sleeve, the push tooth ring and the internal tooth snap ring. The push tooth ring pushes away internal teeth along the pipe insertion direction so as to lead the internal tooth snap ring to release the pipe wall before disassembling a pipe. A top end of the push tooth ring is basically flush with an exposed element or contracted in the exposed element under the pipe connection state. The exposed element is the more prominent one of the plug sleeve and the pipe joint. Also provided is a pipe disassembly tool.Type: GrantFiled: July 8, 2009Date of Patent: December 17, 2013Inventor: Lin Wai Lai
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Patent number: 8528944Abstract: A stopper grip ring for plumbing pipes. A stopper grip ring for plumbing pipes, according to an exemplary embodiment of the present disclosure, includes: an outer circumferential portion which forms an outer diameter of a ring shape; an O-ring supporting portion formed to be bent at one side of the outer circumferential portion so as to come into contact with an O-ring and having an entry inducing portion which is formed to be inclined at one end portion, and an inserting portion which is formed at the other end portion and enters while being induced by the entry inducing portion; and a stopper portion formed to be bent at the other side of the outer circumferential portion so as to be spaced apart from the O-ring supporting portion and having a sharpened portion which is formed at an edge and is divided by a plurality of slits.Type: GrantFiled: January 31, 2013Date of Patent: September 10, 2013Assignee: Jung Woo Metal Ind. Co., Ltd.Inventor: Kwang-Won Lee
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Publication number: 20130200613Abstract: Disclosed is a stopper grip ring for plumbing pipes. A stopper grip ring for plumbing pipes, according to an exemplary embodiment of the present disclosure, includes: an outer circumferential portion which forms an outer diameter of a ring shape; an O-ring supporting portion formed to be bent at one side of the outer circumferential portion so as to come into contact with an O-ring and having an entry inducing portion which is formed to be inclined at one end portion, and an inserting portion which is formed at the other end portion and enters while being induced by the entry inducing portion; and a stopper portion formed to be bent at the other side of the outer circumferential portion so as to be spaced apart from the O-ring supporting portion and having a sharpened portion which is formed at an edge and is divided by a plurality of slits.Type: ApplicationFiled: January 31, 2013Publication date: August 8, 2013Applicant: JUNG WOO METAL IND. CO., LTD.Inventor: Jung Woo Metal Ind. Co., Ltd.
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Patent number: 8491012Abstract: A tube coupling including a body having a bore and an open end, a slidably movable jaw ring received in the bore, a bushing fitted into the body open end having a surface facing the movable jaw and defining a stationary jaw, and a resiliently expandable grab ring disposed in the bore between the movable and stationary jaw. With a tube end being inserted into the bore and through the grab ring, and with the tube being grabbed by the grab ring to retain the tube end in the bore, the movable jaw is responsive to fluid pressure received within the tube to slidably move towards the stationary jaw face such that a portion of the grab ring is clamped therebetween.Type: GrantFiled: November 17, 2011Date of Patent: July 23, 2013Assignee: Parker Hannifin Manufacturing FranceInventor: Philippe LeQuere
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Patent number: 8485560Abstract: A welding spacer includes a spacer body having a first pipe-engaging face and a second socket-engaging face. The spacer may be formed from any suitable material, including a liquid-degradable or heat-degradable composition. A spacer thickness separates the first face and the second face. The spacer thickness may comprise solid material or it may have one or more hollow portions. A peripheral edge is provided on the spacer body. One or more deformable members may be provided on the peripheral edge for retaining the spacer in a structure. The welding spacer may be incorporated in a pipe assembly that includes a first pipe segment and a second pipe segment. The first pipe segment has a socket at a first pipe end with an interior shoulder to seat the welding spacer. The second pipe segment has a second pipe end that is received in the socket and seated against the welding spacer.Type: GrantFiled: November 7, 2008Date of Patent: July 16, 2013Inventor: Michael Hacikyan
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Patent number: 8480695Abstract: A device for forming an anastomosis of blood vessels or ducts includes a first inner cylindrical element for engaging a corresponding first blood vessel/prosthesis end portion and a first middle cylindrical element into which the first inner cylindrical element is inserted to bend the legs of the first inner cylindrical element inwards to a predetermined extent so that deformable legs thereof engage the vessel/prosthesis wall. The device includes a second inner cylindrical element for engaging a corresponding second blood vessel/prosthesis end portion and a second middle cylindrical element into which the second inner cylindrical element can be inserted to bend the legs of the second inner cylindrical element inwards to a predetermined extent so that deformable legs thereof engage the vessel/prosthesis wall. The device also includes an outer element for reciprocally connecting the first and second middle cylindrical elements.Type: GrantFiled: November 8, 2010Date of Patent: July 9, 2013Assignee: Newman Medical KFTInventors: Enzo Borghi, Piergiorgio Tozzi
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Patent number: 8480134Abstract: A pipe fitting and associated piping joint assembly package allow re-use and repair of push-fit, formed piping elements without damage to the fitting or valve elements or the pipe, and without coining, gluing or threaded engagement of parts. In one embodiment, the present invention includes a pipe fitting having first and second radial housing elements for receiving one or more sealing members and a fastening ring, respectively. In one embodiment, the present invention further includes a sealing member stabilizer element, a housing divider element and a snap ring support member cooperatively engageable so as to facilitate the secure retention and optional removal of an inserted piping element.Type: GrantFiled: June 7, 2012Date of Patent: July 9, 2013Assignee: Quick Fitting, Inc.Inventors: David B. Crompton, Libardo Ochoa Dias
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Patent number: 8430432Abstract: A pipe coupling with an anchoring arrangement for locking the pipes together axially. The anchoring arrangement comprises a tubular casing, a frusto-conical gripping ring with inwardly projecting gripping teeth and tensioning bolts for tightening the casing about the frusto-conical gripping ring. The frusto-conical gripping ring is formed of a plurality of arcuate segments which overlap to form a complete ring. By forming the gripping ring of segments, the gripping ring is able to adapt to pipes that are not truly circular in cross section and a better grip on the pipe may be achieved than with a single-piece gripping ring.Type: GrantFiled: February 29, 2008Date of Patent: April 30, 2013Assignee: Taylor Kerr (Couplings) LimitedInventors: Ian Richard Webb, Neil John Thornton Taylor
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Patent number: 8424179Abstract: A tool (20) for a pipe fitting arrangement in which a pipe is retainable arranged within a housing (1) by teeth (13) of a grip ring (12) placed within the housing, the tool comprising: first engagement means for engaging the pipe, said first engagement means having at least one part (12) adapted to enter the housing around the pipe in order to force the teeth of the grip ring out of engagement with the pipe, second engagement means for engaging the first engagement means as well as the housing in order to locate the housing relative to the tool, and a handle connected or connectable with the second engagement means. The first engagement means being connected to the second engagement means via at least one first joint being in form of a pivot (24f) and/or at least one first spring means (38) in order to be at least partly displaceable relative to the second engagement means, and a method using such a tool.Type: GrantFiled: January 31, 2008Date of Patent: April 23, 2013Assignee: Conex Universal LimitedInventors: Steven Paul Webb, Alan Richard Glaze
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Patent number: 8398122Abstract: A push fitting joint packaging arrangement allows the re-use and repair of push-to-connect fittings and valves without damage to the fitting or valve elements or the pipe, and without coining, gluing or threaded engagement of parts. In one embodiment of the present invention, the arrangement comprises a split fastening ring and a split O-ring support member.Type: GrantFiled: September 27, 2011Date of Patent: March 19, 2013Assignee: Quick Fitting, Inc.Inventors: David B. Crompton, Libardo Ochoa Dias
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Patent number: 8370971Abstract: A faucet connecting structure contains a body including an internal chamber having a groove; an outlet pipe including an inlet end and an outlet end; the inlet end including an connecting segment with a slot; a retaining loop to define a C-shaped peripheral wall and an elongated opening; the peripheral wall including an outer face having plural first raised portions to form a first flexible deforming structure and having plural first recessed portions, including an inner face having plural second raised portions to form a second flexible deforming structure and having plural second recessed portions, the peripheral wall also including a first end and a second end, and the first end including a rib; a limiting means used to limit the retaining loop in the groove of the body to prevent the outlet pipe from disengagement from the body.Type: GrantFiled: December 6, 2010Date of Patent: February 12, 2013Assignee: Globe Union Industrial Corp.Inventor: Ruifu Wang
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Patent number: 8342579Abstract: A pipe for connecting to a similar adjacent pipe. The pipe has a female end with a plurality of rigid fingers extending into the space within the female end. The plurality of rigid fingers extends from at least one interior circumferential groove on the interior surface of the female end. On the male end of the pipe there is at least one exterior circumferential groove that is sized and positioned to receive the plurality of rigid fingers from a corresponding interior circumferential groove on the female end of an adjacent pipe. The number of interior circumferential grooves on the female end with the plurality of rigid fingers extending from them typically corresponds to the number of exterior circumferential grooves on the male end.Type: GrantFiled: February 3, 2009Date of Patent: January 1, 2013Inventors: Thomas L. Hennemann, Garth H. Saul
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Patent number: 8322755Abstract: A tube coupling 10 including a tubular housing 11, a seal 12 within the housing 11 and a grab ring 13 for gripping the outside of a tube. The grab ring 13 is mounted within the housing 11 between a first pair of abutments 27 and 28 which are spaced apart axially in the direction of insertion of a tube into the coupling 10. The grab ring 13 is split through its circumference at 29, to allow a radial contraction for insertion into the housing 11 past the first abutment 28. The grab ring 13 can then radially expand for location between the abutments 27 and 28.Type: GrantFiled: December 16, 2010Date of Patent: December 4, 2012Assignee: GSA Industries (Aust). Pty. Ltd.Inventors: William Vernon Kluss, Gregory Morwood
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Patent number: 8303001Abstract: A pipe connector including a connection member having a through-hole extending from a connection hole on one side to a coupling hole by way of an insertion hole in a stepped manner, a packing member fitted into the coupling hole, a guide member provided rearwards from the packing member with a tapered opening formed therein, a clamp member fitted into the tapered opening with a plurality of clamp pieces which are slanted so as to bite an outer circumference of a pipe, and a fastening member coupled to the connection member with a fixing section provided on one side with an inclined fixing protrusion protruding towards inside from the fixing section so as to push up the clamp pieces when inserted into the clamp pieces.Type: GrantFiled: January 13, 2009Date of Patent: November 6, 2012Assignee: Kofulso Co., Ltd.Inventor: Seung-il Oh
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Patent number: 8210576Abstract: A piping joint assembly and fastening ring removal tool allow re-use and repair of push-fit piping fittings and valves without damage to the fitting or valve elements or the pipe. The quick connection pipe fitting assembly package of the present invention employs a threaded retaining cap that when removed, exposes the clamping, sealing and fastening mechanism of the fitting or valve. In one embodiment, the present invention further includes a removable packing gland mounted on a body about an axis of an orifice. The present invention facilitates re-use of existing fittings and valves by allowing the internal components to be removed, repaired and/or replaced.Type: GrantFiled: December 30, 2010Date of Patent: July 3, 2012Assignee: Quick Fitting, Inc.Inventor: David B. Crompton
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Patent number: 8205915Abstract: A pipe fitting and associated piping joint assembly package allow re-use and repair of push-fit piping fittings and valves without damage to the fitting or valve elements or the pipe, and without coining, gluing or threaded engagement of parts. In one embodiment, the present invention includes a pipe fitting having first and second radial housing elements for receiving one or more sealing members and a fastening ring, respectively. The fastening ring can be a split fastening ring. The split fastening ring and the sealing members provided as part of the present invention are capable of being removed and/or replaced.Type: GrantFiled: September 27, 2011Date of Patent: June 26, 2012Assignee: Quick Fitting, Inc.Inventors: David B. Crompton, Libardo Ochoa Dias
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Patent number: 8091932Abstract: A coupling device for a tube comprising a coupling piece with an insert end for the tube and a sealing organ which is suitable for realizing a seal around the tube inserted in the coupling piece, whereby the sealing organ comprises a series of elements which together form a ring enclosing the tube, and whereby the elements have been provided with at least one grip ring, extending over at least a part of the circumference of the tube, which at least one grip ring is embodied with inwardly and/or outwardly pressed out first projections and second projections extending away from the surface of the grip ring, whereby the first projections and the second projections are provided with, in the plane of these projections extending first anchor teeth and second anchor teeth.Type: GrantFiled: December 23, 2010Date of Patent: January 10, 2012Assignee: Georg Fischer WAGA N.V.Inventor: Andreas Jacobus Louis Nijsen
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Patent number: 8052406Abstract: A valve retainer is provided for securably retaining a discharge valve assembly within a recess formed in a scroll. The valve retainer can be installed between the recess of the non-orbital scroll and the discharge valve assembly to retain the discharge valve assembly at the recess. The valve retainer can include a ring-like body having inwardly and/or outwardly extending tangs for cooperating with structure formed on the respective valve and the recess of the non-orbital scroll.Type: GrantFiled: November 14, 2007Date of Patent: November 8, 2011Assignee: Emerson Climate Technologies, Inc.Inventors: Feng E. Li, Jin Zhang, Samuel P. Busching, Shane J. Angle, William P. Tobe
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Patent number: 8052177Abstract: A pipe coupling (1) comprising a tubular body (2) having at least one open end (3,4,5), a stop component (14) disposed within the tubular body distal to the open end to stop a pipe when it is inserted a predetermined distance into the tubular body. A sealing component (15) is intermediate the stop and the open end and a pipe engaging component (17) is disposed intermediate the sealing component and the open end having a variable diameter to clamp and release an inserted pipe as a result of the diameter of the pipe engaging component reducing and increasing respectively. A pipe release component (21) is disposed intermediate the pipe engaging component and the open end, the pipe release component being movably mounted on the open end and having a pipe clamping position.Type: GrantFiled: July 10, 2006Date of Patent: November 8, 2011Inventor: William James Irwin
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Patent number: 8033578Abstract: A coupling between a first body with a hole and a cylindrical end zone of a second body to be inserted therein, in which hole extend elastically deformable tongues, the free end edges of which tongues lie on a circle, the diameter of which is smaller than the outer diameter of the end zone, which tongues bend in the insertion direction when the end zone is inserted and scrape over the surface thereof with their free edges such that after inserting the end zone over some distance the movement in a backward direction is blocked. The end edges of the tongues have an inclining position corresponding to a part of a helix, so that during a relative rotation of the two bodies, the form of the helix is followed whereby an axial relative movement also occurs and the end zone can be removed from the hole.Type: GrantFiled: July 3, 2006Date of Patent: October 11, 2011Assignee: Widee B.V.Inventor: Gerrit Jan De Wilde
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Patent number: 8025315Abstract: A fitting for connection with a pipe end configured to have a medium flow therethrough, the fitting including a connecting section having a circumferentially-extending groove, a sealing element arranged in the grove, and a protection sleeve configured to be arranged over the groove and displaceable between a first position and a second position. The first position of the protection sleeve covers the groove at least partially and the second position of the protection sleeve exposes the groove at least partially. An amount of exposure of the groove is greater in the second position than an amount of exposure of the groove in the first position.Type: GrantFiled: February 12, 2008Date of Patent: September 27, 2011Assignee: Viega GmbH & Co. KGInventors: Christoph Schreckenberg, Thorsten Wasserhövel
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Patent number: 7900973Abstract: A plug-type connector for pipelines, having a first and a second connection end, with a first connection end being in the form of a first support body, the first support body being provided with a closure ring, the closure ring and the first support body forming an annular space for accommodating a pipe end, and for securing the pipe end, which is inserted into the annular space in a clamping manner, against axially acting withdrawal forces. The plug-type connector is distinguished in that the closure ring has at least one latching projection or latching recess with which the clamping ring can be axially secured.Type: GrantFiled: March 30, 2007Date of Patent: March 8, 2011Assignee: Kaimer GmbH & Co. Holding KGInventors: Tom Herberg, Bernd Kaimer
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Patent number: 7878554Abstract: An anchor washer for anchoring a first element and a second element in relative engagement, includes an annular portion from which there extends at least one tooth that is inclined relative to a central axis of the annular portion, the annular portion being designed for mounting on the first element, and the tooth having two side faces between which there extends a rubbing surface for being oriented substantially towards the second element, the surface being connected to the side faces via coupling portions, the tooth being shaped so that at least one of the coupling portions is set back from at least a portion of the surface so that the coupling portion is kept at a distance from the second element. A coupling device including such a washer is also disclosed.Type: GrantFiled: October 23, 2006Date of Patent: February 1, 2011Assignee: Legris SAInventor: Nicolas Le Bars
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Patent number: 7878555Abstract: A coupling device for circular pipes, in which locking rings, inserted into a body to clamp a circular pipe, are arranged in a pair so that the central line of a circular pipe can be aligned when the circular pipe is inserted. Furthermore, the degree to which the body presses the seal packing can be adjusted so that a reliable seal can be maintained and the circular pipe can be securely coupled no matter who uses the coupling device. A coupling device for corrugated and circular pipes is provided for the case where it is more effective to replace one of the circular pipes with a corrugated pipe. The first coupling section and a connecting means, which can engage with a corrugated pipe, are provided opposite the second coupling section, which is coupled with the circular pipe.Type: GrantFiled: July 18, 2007Date of Patent: February 1, 2011Assignee: Kofulso Co., Ltd.Inventor: Seung-Il Oh
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Patent number: 7862089Abstract: A pipe fitting assembly package and fastening ring removal tool allow re-use and repair of push-fit piping fittings and valves without damage to the fitting or valve elements or the pipe. The quick connection pipe fitting assembly package of the present invention employs a threaded retaining cap that when removed, exposes the clamping, sealing and fastening mechanism of the fitting or valve. In one embodiment, the present invention further includes a removable packing gland mounted on a body about an axis of an orifice. The fastening ring removal device provided as part of the present invention is manually pushed onto the cylindrical object and is capable of expanding to traverse over the installed fastening ring. The fastening ring removal device includes a parallel angular surface to lift the fastening ring off of the pipe member.Type: GrantFiled: May 25, 2007Date of Patent: January 4, 2011Assignee: Quick Fitting, Inc.Inventor: David B. Crompton
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Patent number: 7850208Abstract: A stamped collet for a push-to-connect tube coupling formed into a generally cylindrical configuration. The collet has an annular base portion from which flexible tines extend forward from the base portion, the flexible tines being circumferentially arranged around a center axis of the collet and including inwardly inclined distal finger portions terminating at a biting edge. The flexible tines can flex outwardly to permit axial insertion of a tube through the collet. At least one of the flexible tines has at least one cam wing that extends radially outwardly from a side of the tine and has a radially outwardly inclined cam surface. The cam surface can be engaged by a corresponding cam surface of a retainer to urge the tine radially inwardly with the biting edge biting into an outer surface of the tube for preventing the tube from being pushed out or pulled out of a coupling.Type: GrantFiled: December 14, 2006Date of Patent: December 14, 2010Assignee: Parker-Hannifin CorporationInventor: Dorothy G. Greenberger
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Patent number: 7841630Abstract: An electrical fitting in the form of a connector or coupler for connecting an electric metal tube to an electrical box or panel or to one another. The fitting includes a body having an inlet end portion, an outlet end portion and a bore extending therethrough. An unidirectional locking device is disposed in an outermost chamber and a sealing washer disposed in an intermediate chamber. A split ring having an angularly bent leading end is provided with a series of offset circumferentially spaced unidirectional gripping tangs. The locking device may also be provided with a series of tube support tangs at the trailing end. Also, the locking device includes a tang forming an electrical bonding or ground between tubes, locking device and connector body.Type: GrantFiled: September 19, 2007Date of Patent: November 30, 2010Assignee: Bridgeport Fittings, Inc.Inventors: Delbert Auray, Lawrence J. Smith
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Patent number: 7837697Abstract: A device for forming an anastomosis of blood vessels or ducts comprises: first and second engagement structures (7, 10; 35) for respectively engaging a first end portion (2) of a blood vessel (1) or of a prosthesis and a second end or side portion (4, 4?) of the blood vessel (1) or prosthesis; and a mechanism (14, 14?) for reciprocally connecting the first and second engagement structures. The first engagement structure (7, 10) comprise one or more piercing elements (6) adapted to only partially penetrate the side wall of the blood vessel (1) so as to avoid direct contact between the elements (6) and the blood inside the vessel or prosthesis.Type: GrantFiled: December 21, 2004Date of Patent: November 23, 2010Assignee: Newman Medical KFTInventors: Enzo Borghi, Piergiorgio Tozzi
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Patent number: 7810850Abstract: A fluid coupling having an outer housing with an internal bore, an O-ring fitted within the bore, a spacer bushing fitted against the O-ring, a gripper ring fitted against the axially outer side of the spacer ring, the gripper ring having axially and radially inwardly protruding circumferentially spaced gripping teeth, the teeth arranged for providing a twist when subjected to simultaneous rearward axial and rotational forces, and an end bushing holding the gripper ring, spacer bushing, and O-ring within the outer housing.Type: GrantFiled: February 22, 2008Date of Patent: October 12, 2010Assignee: Accor Technology, Inc.Inventors: Jerry E. O'Neill, Charlie Whitney
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Patent number: 7793993Abstract: A coupling device for a fluid line has a collet and an axially movable actuating sleeve serving for operation of the collet. The collet bears several gripping teeth with associated actuating portions able to be acted on by actuating faces on the actuating sleeve in order to hold the inserted fluid line. In the non-operated state of the actuating sleeve there are at least partly different distances between the mutually associated actuating portions and actuating faces so that on actuation of the actuating sleeve several actuating portions of the collet are acted on one after the other. This means that the necessary actuating force is reduced.Type: GrantFiled: March 18, 2008Date of Patent: September 14, 2010Assignee: Festo AG & Co. KGInventors: Ulrich Kees, Harald Röhrig
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Patent number: 7735880Abstract: The present invention relates to a quick joint coupling for liquid tight joining of lines under high pressure and comprising a sleeve shaped female part and a male part being introducible into the female part. A male part related to the female part comprises a cylindrical part being introducible into the female part of an envelope surface of which presents a first groove having a certain width. The first groove receives a ring being axially displaceable between the two walls of the groove, which the ring has substantially the same thickness as the depth of the first groove, and which the female part comprises a cylindrical space for receiving the cylindrical part of the male part. The envelope surface of the space is provided with at least a second groove for receiving elastically movable locking means out off and into the cylindrical part.Type: GrantFiled: September 28, 2005Date of Patent: June 15, 2010Assignee: Weo Hydraulic ABInventor: Weimar Ohlsson
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Patent number: 7712795Abstract: In the case of a pipe connection for connecting a first pipe end (1) to a second pipe end (6), with a sealing ring (13) sealing the intermediate space between the pipe ends (1, 6), and a tensible pipe clamp (14) which fits over the pipe ends (1, 6) and in which a toothed anchoring ring (9) is mounted, said anchoring ring pressing the toothed inside (10) of the anchoring ring (9) against the surface of an associated pipe end (6) when the pipe clamp (14) is tightened, simplified handling and a high compressive strength are achieved in that the first pipe end (1) is widened in a sleeve-shaped manner such that the second pipe end (6) can be pushed into the widened portion (2), in that the pipe clamp (14) has an internal contour which fits over the sleeve-shaped widened portion (2) of the first pipe end (1) in a form-fitting manner counter to a pull-out direction (A1) for releasing the pipe ends (1, 6) from each other, and in that the anchoring ring (9) is positioned to bear only against the second pipe end (6).Type: GrantFiled: October 16, 2008Date of Patent: May 11, 2010Inventor: Wolfgang Vahlbrauk
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Patent number: 7686346Abstract: An improved coupling, such as a transition tee coupling, is described having press-connect fittings on the ends and a push-connect fitting on the outlet. The improved transition tee coupling is formed using a reduced-outlet tee having press-connect fittings on all three sockets. An unfinished end of a tailpiece having a push-connect fitting on the opposite end is inserted into the outlet socket of the press-connect tee. The press-connect fitting of the outlet tee is crimped using a special press tool jaw that does not damage the push fitting on the tailpiece.Type: GrantFiled: July 21, 2006Date of Patent: March 30, 2010Assignee: Elkhart Products CorporationInventors: Dana F. Buccicone, Larry W. Johnson
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Patent number: 7644955Abstract: A quick coupling type fitting is disclosed that connects two ends of two different pipes together in a fluid tight manner. It is designed for convenience in installation, high strength, compact size, easy manufacture with a low production cost, high efficiency and does not require the use of special tools for installation. The coupling utilizes a grab ring module that has a grab ring made with embedded stainless steel, thereby strengthening the fixing force and allowing for quick installation. A flaring surface on a retaining flange has an angle that corresponds to a tapering surface of the grab ring module. When the flaring surface and the tapering surface contact each other, the grab ring module compresses the surface of the pipe. Because the grab ring module has an outer plastic body with a small inner part, the grab ring module can be compressed to the pipe without causing fatigue of any members inside of the fitting. A specialized tool allows for quick and easy dismantling of the fitting.Type: GrantFiled: July 3, 2008Date of Patent: January 12, 2010Inventor: Naris Komolrochanaporn
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Patent number: 7621569Abstract: An implantation cartridge for a pipe connection designed to be fitted in a housing includes a body and a quick coupling, the inlet of the housing has an annular rim designed to form, with the pipe in the connection end position and when the cartridge is in an intermediate insertion position in its housing, a stop for limiting the axial travel of the push button so as to make the connection of the pipe to the cartridge irreversible.Type: GrantFiled: July 12, 2005Date of Patent: November 24, 2009Assignee: Parker Hannifin France SASInventor: Bernard Anthoine
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Patent number: 7611172Abstract: A plug-in coupling for pipes includes a sealing element, a sleeve linked with the base and a retaining element including retaining claws for fixing the pipe end which is disposed in the interior of the sleeve. An annular gap between the base and the sleeve and receives the pipe end. While reducing production and assembly costs, the plug-in coupling ensures a durable and reliable connection and prevents the pipe end from being damaged and the retaining claws from penetrating the pipe end too deeply. The retaining element includes a closed annular part and is integrated into the sleeve and fixed therein with said part. The sleeve includes radially inside the retaining element a support element with an outer supporting face on which the spring-elastic retaining elements are supported. The supporting face is mounted at a predetermined angle which opens up towards the free front sleeve end.Type: GrantFiled: July 1, 2004Date of Patent: November 3, 2009Assignee: Friatec AktiengesellschaftInventors: Hans-Juergen Baving, Peer Milnazik, Bernhard Sichler, Gudrun Mannweiler, Michael Kropp, Lars Schiedhering
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Patent number: 7600788Abstract: A fast-fit coupling for a fluid circulation system comprising at least two conveying members of a fluid. The coupling comprises: a receiving body for each conveying member; way for fastening carried by the body, shiftable by the conveying member during the insertion of the conveying member, and integral with the conveying member when the conveying member is moved in a disconnection direction from the body; way for locking cooperating with the way for fastening to lock the conveying member in a position inside the body and to prevent the body itself from being disconnected; and way for releasable constraint, activatable for restraining the way for locking to the body and preventing the conveying member to be disconnected, and deactivatable to disconnect the way for locking and allowing the conveying member to be disconnected; the way for locking and the body are engageable/disengageable by ways of a relative rotation less than ninety degrees.Type: GrantFiled: November 3, 2006Date of Patent: October 13, 2009Assignee: Pres-Block, S.p.A.Inventor: Aldo Nicolino
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Publication number: 20090243288Abstract: A fluid coupling having an outer housing with an internal bore, an O-ring fitted within the bore, a spacer bushing fitted against the O-ring, a gripper ring fitted against the axially outer side of the spacer ring, the gripper ring having axially and radially inwardly protruding circumferentially spaced gripping teeth, and an end bushing holding the gripper ring, spacer bushing, and O-ring within the outer housing. A second gripper ring and a second spacer ring are used in some embodiments.Type: ApplicationFiled: April 20, 2009Publication date: October 1, 2009Applicant: ACCOR TECHNOLOGY, INC.Inventors: Jerry E. O'Neill, Charlie Whitney
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Patent number: 7549679Abstract: A fitting to be secured on pipes can be used with a number of distinct pipe materials and types. The fitting includes a nut receiving a Belleville spring washer. As the nut is tightened on threads on an end fitting, it forces the Belleville spring washer away from a relaxed position. This causes a radially inner portion of said spring washer to dig into an outer surface of the pipe, locking the Belleville spring washer, and hence the nut, on the pipe. The deformation of the washer also forces a ring against an inner seal, deforming the seal against the pipe, the nut, and the end fitting. In a second embodiment, a second washer is also deformed. The present invention provides a simple and universal method of attaching pipes to end fittings.Type: GrantFiled: September 8, 2006Date of Patent: June 23, 2009Assignee: Brass-Craft Manufacturing CompanyInventors: Edward Brosius, Brian D. Sanzone
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Publication number: 20090140520Abstract: The present invention relates to a coupling for cylinders or pipes. The invention provides an improved coupling having an innovative pipe grip preventing inadvertent separation of the two items being coupled. The improved releasable band-clamp coupling comprises a central housing of cross-section resembling a wide, low-wall channel, the housing being curved to be larger than the outer diameter of a pipe. Two curved outer clamp members each configured to contact a wall of the housing and to support a ring seal member and to support a sloped mechanical grip ring, there being further provided proximate to the ends of the curved outer clamp members a pair of substantially parallel pair of clamping extensions.Type: ApplicationFiled: December 4, 2007Publication date: June 4, 2009Inventors: Eliezer Krausz, Avi Chiproot
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Patent number: 7530606Abstract: A quick pipe connector includes a tubular housing defining an axis, and a connecting unit. The connecting unit includes a grip ring adapted to grip a water pipe, and a locking ring abutting against a first housing shoulder surface of the tubular housing and positioning the grip ring to abut against a second housing shoulder surface of the tubular housing. The locking ring has a slit that extends parallel to the axis. An inner ring surface of the locking ring includes an annular inner shoulder part transverse to the axis. A release ring is formed with a stop surface confronting the annular inner shoulder part, and is movable along the axis relative to the locking ring to a release position, where the stop surface is moved away from the annular inner shoulder part and where the release ring forces the grip ring to release gripping action on the water pipe.Type: GrantFiled: January 4, 2008Date of Patent: May 12, 2009Inventor: Richard Yang
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Patent number: 7523966Abstract: A fluid coupling having an outer housing with an internal bore, an O-ring fitted within the bore, a spacer bushing fitted against the O-ring, a gripper ring fitted against the axially outer side of the spacer ring, the gripper ring having axially and radially inwardly protruding circumferentially spaced gripping teeth, and an end bushing holding the gripper ring, spacer bushing, and O-ring within the outer housing. A second gripper ring and a second spacer ring are used in some embodiments.Type: GrantFiled: June 18, 2007Date of Patent: April 28, 2009Assignee: Accor Technology, Inc.Inventors: Jerry E. O'Neill, Charlie Whitney
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Patent number: 7500699Abstract: A coupling for joining pipe segments together is disclosed. The coupling is derived from a standard fitting and has a housing with a socket and a first expanded region adjacent to the socket and a second expanded region adjacent to the first expanded region. A sealing member is positioned in the first expanded region, a retainer is positioned in the second expanded region and a support washer having transversely oriented radial and coaxial flanges is positioned adjacent to the retainer. A clamping tab turned inwardly on the second expanded region overlaps the radial flange and clamps the support washer and retainer against a shoulder within the second expanded region thereby also capturing the sealing member within the coupling. The retainer has a plurality of radial teeth angularly oriented to engage a pipe and prevent its removal from the coupling. The teeth are twisted about their longitudinal axes.Type: GrantFiled: November 19, 2002Date of Patent: March 10, 2009Assignee: Victaulic CompanyInventors: Ronald R. Snyder, Sr., Charles E. Wilk, Jr., Lawrence W. Thau, Jr., Douglas R. Dole, Terrance M. Carom
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Patent number: 7490866Abstract: An anchoring device for a pipe coupling including an annular channel of generally U-shaped cross-section. The channel has a web portion with flanges and projecting radially inwardly. A frusto-conical gripping ring is located in the channel with its outer edge inside the web portion adjacent one of the flanges and its inner edge adjacent the other flange and projecting inwardly beyond this latter flange. The annular channel forms an incomplete ring and is compressible circumferentially. The anchoring device is fitted inside a clamping device, which fits around a pipe coupling. The clamping device has a tensioning for tightening the clamping device around the pipe, compressing the annular channel and causing the inner edge of the frusto-conical gripping ring to engage the outer surface of the pipe and thus grip the pipe.Type: GrantFiled: February 20, 2003Date of Patent: February 17, 2009Assignee: Taylor Kerr (Couplings) LimitedInventors: Ian Richard Webb, Neil John Taylor
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Publication number: 20080309081Abstract: The invention relates to a coupling between a first body (1)with a hole and a cylindrical end zone of a second body (2) to be inserted therein, in which hole extend elastically deformable tongues (7), the free end edges (9) of which tongues lie on a circle, the diameter of which is smaller than the outer diameter of said end zone, which tongues bend in the insertion direction when said end zone (15) is inserted and scrape over the surface thereof with their free edges such that after inserting the end zone over some distance the movement in backward direction is blocked. The end edges of the tongues have an inclining position corresponding to a part of a helix, so that during a relative rotation of the two bodies (1,2) the form of the helix is followed whereby an axial relative movement’ also occurs and the end zone can be removed from the hole.Type: ApplicationFiled: July 3, 2006Publication date: December 18, 2008Applicant: WIDEE B.V.Inventor: Gerrit Jan De Wilde
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Patent number: 7455330Abstract: A quick coupling (1) comprising a sleeve-shaped coupling body (3) with a receiving opening (4) to receive one end (5) of a pipe (2), a retaining element (7) to hold the end (5) of the pipe in the coupling body (3), a sealing element (8) to seal the pipe (2) against the coupling body (3) and a securing element (9) to secure the connection between the pipe (2) and the coupling body (3), in conjunction with first and second locking ribs (23,24) adjacent to the receiving opening (4) on an external surface (21) of the coupling body (3), which ribs extend outwards in a radial direction and interact with the securing element (9) for the purpose of securing a connection between the pipe (2) and the coupling body (3).Type: GrantFiled: April 28, 2005Date of Patent: November 25, 2008Assignee: Kulm Holding AGInventor: Hans Baumgartner