Gasket Retainer Patents (Class 285/379)
  • Patent number: 6241290
    Abstract: A pipe coupling with a cylindrical pipe, whose smooth end section can be inserted into a fitting that has at least one sleeve-like area extending in the longitudinal direction. At least one sealing ring is arranged between the pipe outer wall and the fitting inner wall. The fitting and the pipe are connected securely to each other by an externally applied pressing tool that acts in a plastically deforming manner on at least one radial plane of the sleeve-like area of the fitting as well as the pipe section located under this. A metal sleeve, which can be placed over the pipe ends by force, is arranged between the pipe outer wall and the fitting inner wall. The fixed axial extension of the metal sleeve surrounds the pipe starting from the pipe end face, and the length of the metal sleeve is selected so as to correspond to the required overlap between the pipe and the fitting.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: June 5, 2001
    Assignee: Mannesmann AG
    Inventors: Herbert Foering, Thomas Gigowski, Michael Berane, Karl-Heinz Hartings, Johannes Schurr
  • Patent number: 6203073
    Abstract: A tube joint comprises: a pushing ring provided at its outer periphery with a projection and fitted to an outer periphery of one end of a joint tube; a tube or a joint body provided at is side opposed to the pushing ring with a projection opposed to the projection of the pushing ring, the tube or the joint body having a receiving portion which is widened toward the pushing ring and the tube or the joint body being fitted to an outer periphery of the joint tube with a peripheral gap left therebetween; a fastening tool capable of moving the pushing ring in a direction of the tube or the joint body; a packing provided between inner and outer side of the tube or the joint body and the joint tube, and fitted through the receiving portion by its own resilient deformation by operation of the fastening tool; and a spacer inserted between the pushing ring and the tube or the joint body to limit a distance between the pushing ring and the tube or the joint body to a constant value.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: March 20, 2001
    Assignee: Waterworks Technology Development Organization Co., Ltd.
    Inventors: Taichi Sato, Koichi Shirakawa, Kosuke Sakai
  • Patent number: 6170890
    Abstract: Each of seal projections 7, 8 is positioned radially outward of an inner periphery 1a, 2a of abutting end face of each of joint members 7, 8 and has in section a contour which comprises a circular-arc portion 7b, 8b extending radially outward from the abutting end face, and a straight portion 7a, 8a extending from the circular-arc portion 7b, 8b. The circular-arc portion 7b, 8b has a center positioned radially inward of the point of intersection of the circular-arc portion 7b, 8b and the straight portion 7a, 8a. The straight portion 7a, 8a is inclined at 30 to 60 degrees with respect to the direction of axis of the joint member.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: January 9, 2001
    Assignees: Fujikin Incorporated
    Inventors: Tadahiro Ohmi, Michio Yamaji, Nobukazu Ikeda, Tsutomu Shinohara, Tetsuya Kojima
  • Patent number: 6170883
    Abstract: A tubular element has a sealing ring mounted at an end of the tubular element. The sealing ring has a base clamped against the outer surface of the tubular element. Further, the sealing ring has a sealing lip adapted to seal against an inner surface of an outer tube, in which the tubular element is inserted. The base is disposed in a groove that is formed in the wall of the tubular element. The sealing ring has a further lip that is positioned adjacent to the end of the tubular element and that is bent down and clamped against the base by means of the end portion, thereby providing secure fastening of the sealing ring. The sealing ring is fastened by a method involving bending of the end portion of the tubular element together with the further lip.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: January 9, 2001
    Assignee: Lindab AB
    Inventors: Lars-Åke Mattssön, Pontus Andersson, Kenneth Lennartsson, Tomas Persson
  • Patent number: 6168168
    Abstract: An improved seal allows a fuel nozzle to be securely fastened to an aircraft refueling adaptor and the seal does not allow fuel to leak or spill. Significantly, the seal is simple to install and remove because the fuel nozzle does not have to be disassembled or removed from the fuel hose and the seal does not have to be bonded to the seal support. The seal is securely attached to the fuel nozzle without the use of adhesives because the seal is much stiffer than conventional seals, and the seal is mechanically retained in a deep annular groove in the seal support structure. The improved seal includes a body with a first leg, a second leg, a cavity and a projection which is attached to the first leg and it extends at least halfway across the width of the cavity. Desirably, the projection extends about two-thirds of the way across the width of the cavity.
    Type: Grant
    Filed: September 10, 1998
    Date of Patent: January 2, 2001
    Inventor: Albert W. Brown
  • Patent number: 6161875
    Abstract: Each of coupling members 5, 12 is formed with a retainer accommodating recessed portion 45, 46 in an butting end face thereof, the recessed portion 45, 46 being formed on a bottom face thereof with a gasket holding annular ridge 47, 48 having an annular projection 47a, 48a. A retainer 42 comprises a retainer body 43 holding the outer periphery of a gasket 41 and attached to the outer periphery of the annular ridge 47 of one of the coupling members, 5, and a guide ring portion 44 for guiding a peripheral surface of the recessed portion 46 of the other coupling member 12 when the two coupling members 5, 12 are butted against each other.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: December 19, 2000
    Assignee: Fujikin Incorporated
    Inventors: Michio Yamaji, Tsutomu Shinohara, Kosuke Yokoyama
  • Patent number: 6145888
    Abstract: A pipe joint comprises a pair of tubular joint members made of a metal and each having an abutting end face, an annular gasket made of a metal and interposed between the abutting end faces of the respective joint members, a nut joining the joint members together and a retainer holding the gasket to one of the joint members. The joint members are made of stainless steel and silver white. The retainer is made of stainless steel and colored blue so as to be discernible from the joint members. The joint can be checked for the presence of the retainer, accordingly for the presence of the gasket, merely by discerning whether the color seen through an inspection window is blue or silver white.
    Type: Grant
    Filed: May 16, 1995
    Date of Patent: November 14, 2000
    Assignee: Fujikin Incorporated
    Inventors: Tadahiro Ohmi, Michio Yamaji, Nobukazu Ikeda, Tsutomu Shinohara, Tetsuya Kojima
  • Patent number: 6142539
    Abstract: A gas panel for use with a tool for manufacturing a semiconductor includes a one-piece manifold body having an inlet for receiving a process gas. The manifold body has at least one lateral wall extending in the general direction of gas flow. The lateral wall includes at least one active device site having an active device thereon. The active device is in gas communication with a gas carrying path formed within the one-piece manifold. The active device may be a manual valve, a pneumatic valve, a pressure regulator, a pressure transducer, a purifier, a filter or a flow controller. The gas is received from the active device at a continuation of the gas flow path in the manifold body and is conveyed to a manifold outlet for ultimate to the tool.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: November 7, 2000
    Assignee: Unit Instruments, Inc.
    Inventors: Eric J. Redemann, Kim N. Vu
  • Patent number: 6131956
    Abstract: A pipe coupling comprises a cylindrical pipe, whose smooth end section can be slipped onto a fitting that has at least one sleeve-like area extending in the longitudinal direction At least one sealing ring is arranged between the pipe and the fitting. The fitting and the pipe are securely connected to each other by means of an externally applied pressing tool, which acts in a plastically deforming manner on at least one radial plane on the pipe as well as the fitting section located below it. Between the fitting outer wall and the pipe inner wall is arranged a metal sleeve (31), which can be slipped onto the fitting by force. The fixed axial extension of the metal sleeve (31) encompasses the length of the fitting (1) The length of the metal sleeve is selected so as to correspond to the required overlap between the pipe (2.1, 2.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: October 17, 2000
    Assignee: Mannesmann AG
    Inventors: Herbert Foering, Thomas Gigowski, Michael Berane, Karl-Heinz Hartings, Johannes Schurr
  • Patent number: 6106031
    Abstract: Electrical conduit coupling devices are disclosed that include a casing formed of a steel tubing that, in turn, includes a rear portion and a front portion, an elastomeric "O" ring secured at the front portion by a retainer and an end cap. The electrical conduit coupling devices further include a clamp that is arcuate in shape, and in one embodiment, has ends separated from each other to form a gap therebetween which is diametrically located opposite a cut-out in the central region of the clamp. The cut-out cooperates with the separated ends to allow the clamp to clamp around a conduit that is inserted into the electrical conduit coupling device. The electrical conduit coupling devices provide for not only rigid connection to a conduit, but also a waterseal or concrete seal connection therebetween.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: August 22, 2000
    Inventor: Frank Guginsky
  • Patent number: 6070883
    Abstract: The invention relates to a sealing unit for a fuel pressure sensor for sealing an at least virtually flat sealing joint between the sensor and a component that carries it via a screw connection, wherein a round sealing washer with a central bore is disposed between the threaded bolt-shaped end of the sensor housing with its central sensor bore and the bottom of the threaded bore of the component with its central pressure fluid opening. A pin is formed onto the threaded bolt-shaped end of the sensor housing, which pin centers the sealing washer, fixing it in a positive and/or frictional, non-positive manner, and rises above an end face that serves as a bearing surface for the sealing washer. The pin ends in an end face and has a length that is shorter than the thickness of the sealing washer. A sealing unit is produced that assures a reliable sealing function and permits a simple installation and disassembly of the sealing washer while reclaiming the sealing washer in a sealing position.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: June 6, 2000
    Assignee: Robert Bosch GmbH
    Inventor: Heinz-Arno Marto
  • Patent number: 6045166
    Abstract: A high pressure plug/port assembly includes a plug having a head portion at one end, a guide portion at the other end and an O-ring portion therebetween. An annular plug seat surface extends radially inward from the head portion to the O-ring portion at the intersection thereof and a chamfered surface extends radially outward from the O-ring portion to the guide portion at the intersection thereof. The port includes a threaded counterbore in threaded engagement with the plug head portion, a smaller bore receiving the plug's guide portion and a frusto conical bore extending from the smaller bore to the counterbore and defining an annular port seat surface extending radially outward from the frusto conical bore to the counterbore.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: April 4, 2000
    Assignee: The RexRoth Corporation
    Inventor: Richard K. Krause
  • Patent number: 6015152
    Abstract: A sealing assembly is disclosed for creating a seal between first and second mating members or components. The sealing assembly basically includes a seal retainer with one or more annular seals coupled thereto. The seal retainer including a substantially flat body portion lying in a plane and with at least one resilient retaining element integrally formed with said body portion as a one-piece, unitary member for engaging the seal(s) to retain the seal(s) thereto. The seal retainer has an indicator formed on its body portion to indicate if the seal retainer has been used. In the preferred embodiment the indicator is a raised protrusion which normally extends outwardly from the plane of body portion of the seal retainer. Once the seal retainer is used, the raised protrusion of the indicator is deformed inwardly into the plane of the body portion of the seal retainer.
    Type: Grant
    Filed: December 29, 1997
    Date of Patent: January 18, 2000
    Assignee: EG&G Pressure Science, Inc.
    Inventors: Jeffrey E. Swensen, Terence J. Nolan, J. Loyd Spence, Edward P. Rhyne
  • Patent number: 6006773
    Abstract: A T-fitting such as for use inside a containment box for connecting a primary pipeline to a gasoline dispenser has two flanges which connect to the pipeline and a main T-element sealed to each flange by a sealing element such as a gasket. The flanges thread onto each end of the primary pipeline. The main T-element has a stem which is threaded to a pipe leading to a gasoline dispenser. The flanges of the T-element are bolted to the main body of the T-element with the rubber gasket in between to seal the primary pipeline to the T-element. A method for installing a secondary containment system using the T-fitting includes the steps of fastening the stem of the T to the pipe leading to the gasoline dispenser, fastening the flanges of the T-fitting to primary pipeline segments, and fastening the flanges to the main body of the T element.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: December 28, 1999
    Inventor: Sergio M. Bravo
  • Patent number: 6003537
    Abstract: A T-fitting such as for use inside a containment box for connecting a primary pipeline to a gasoline dispenser has two flanges which connect to the pipeline and a main T-element sealed to each flange by a sealing element such as a gasket. The flanges thread onto each end of the primary pipeline. The main T-element has a stem which is threaded to a pipe leading to a gasoline dispenser. The flanges of the T-element are bolted to the main body of the T-element with the rubber gasket in between to seal the primary pipeline to the T-element.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: December 21, 1999
    Inventor: Sergio M. Bravo
  • Patent number: 5979910
    Abstract: A retainer comprises a gasket holder for holding the outer periphery of an annular gasket, and a coupling member holder for holding an end portion of a coupling member. The coupling member holder comprises two elastically deformable lugs projecting axially of the retainer for holding the coupling member. The retainer has handle pieces elastically deformable radially inwardly of the retainer to thereby elastically deform the coupling member holding lugs radially inward.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: November 9, 1999
    Assignee: Fujikin Incorporated
    Inventors: Tsutomu Shinohara, Michio Yamaji
  • Patent number: 5938244
    Abstract: A method and apparatus for forming a fluid tight seal between a coupling body and an insert wherein the coupling body has a seal element disposed circumferentially about an inner wall for fluid tight engagement with an outer wall of an insert upon insertion of the insert into the coupling body.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: August 17, 1999
    Assignee: Colder Products Company
    Inventor: David W. Meyer
  • Patent number: 5911443
    Abstract: A quick-coupling device in the form of an insertable cartridge for coupling a tube within a cylindrical housing, the device comprising a tubular insert having external means for anchoring it inside the housing and internal means for retaining the tube, together with a gasket; wherein the tubular insert has a nose of outside diameter that is smaller than the diameter of the means for anchoring the tubular insert and has a protection ring of inside diameter close to the outside diameter of the nose, said ring being mounted on the free end of the nose and being held axially relative to the nose by weak locking means in an axially projecting position relative to the nose for internally receiving the gasket.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: June 15, 1999
    Assignee: Legris S.A.
    Inventor: Philippe Le Quere
  • Patent number: 5904381
    Abstract: Each of two coupling members is formed in an abutting end lace thereof with a recessed portion for accommodating a gasket and a retainer therein, and the recessed portion has a retainer holding hollow cylindrical portion formed centrally on a bottom surface thereof and provided on an end face thereof with an annular projection for clamping the gasket. The gasket comprises a small portion and a large portion having a greater outside diameter than the small portion. The retainer is attached to the cylindrical portion of the coupling member with which the gasket small portion is in contact.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: May 18, 1999
    Assignees: Ohmi,Tadahiro, Miyagi, Fujikin Incorporated
    Inventors: Tadahiro Ohmi, Tsutomu Shinohara, Michio Yamaji, Nobukazu Ikeda, Keiji Hirao
  • Patent number: 5868437
    Abstract: A pipeline is made by joining a number of pipe sections, each of which includes an inner pipe structure and an outer pipe structure. The outer pipe structure, which may be zinc plated or encased in an protective elastomeric material, includes mating couplings at each end to fasten similar sections together end to end. The inner pipe structure includes a hole extending throughout the pipeline and means for sealing around the hole at each joint. The inner pipe structure is resiliently mounted within the outer pipe structure. The outer pipe structure of each pipe section extends in both directions past the ends of the inner pipe structure.
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: February 9, 1999
    Inventor: Anthony Teague
  • Patent number: 5863079
    Abstract: A quick connect/disconnect coupling comprised of a male coupling adapted to mate with a female coupling, the female coupling forming a passageway to receive the male coupling, and locking means for retaining the male coupling in said female coupling. The locking means being comprised of a locking lever pivotably mounted to the female coupling and having a cooperating projection adapted to extend through the coupling into the passageway to engage an annular cavity of the male coupling to maintain the male coupling into a mating relationship with the female coupling when the locking lever is in a closed position. The male and female couplings are provided with a reinforced annular rim, the reinforced annular rim of the male coupling extends radially of the coupling at a mid-portion thereof.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: January 26, 1999
    Assignee: Gestion Michel Donais
    Inventors: Michel Donais, Denis Lamontagne
  • Patent number: 5829796
    Abstract: A fitting includes two glands, each of which has a head with an attached tubing segment having a passage opening through a face on the respective head. A peripheral sealing bead on each head is normal to the axis of the head. Compression means draws the beads toward one another to press them against an intervening gasket to make a seal. A torque suppressor is rigidly mounted to each head, having a tongue with an axially extending complementary edge to contact a tongue on the other torque suppressor to prevent relative rotation of the heads while the compression means is being tightened. Optionally the lengths of the torque suppressor are such as to prevent abutment of the beads unless a gasket is placed between them.
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: November 3, 1998
    Inventor: Eric R. Robinson
  • Patent number: 5797603
    Abstract: The present invention relates mainly to a sealing ring and to a method of mounting it in a groove. According to the present invention, the sealing ring is twisted before being mounted in the groove so that the reaction forces retain it therein. The retention capabilities of the present invention is improved for sealing rings of a section that includes a projection directed towards a wall of the groove that provides radial support. The present invention applies more particularly to the mechanical, motor vehicle, and aircraft industries. The sealing ring of the present invention can be used, in particular, in association with the manifolds of turbocompressors, and with air inlet and outlet manifolds, in particular those made of plastics materials, as used in the motor vehicle industry.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: August 25, 1998
    Assignee: Le Joint Francais SNC
    Inventors: Bernard Voirol, Didier Cochin, Thierry Travers
  • Patent number: 5784750
    Abstract: A multi-component flow passage assembly is disclosed which incorporates an improved sealing adaptor structure. The adaptor includes a generally-cylindrical adaptor body with a rim for seating on the periphery of a first flow passage section, e.g. a vacuum cleaner horn. The adaptor body is made to include a bead which is received within a lip on the horn. The rim includes a sealing ring section in the shape of an O-ring for sealingly engaging the perimeter of a second flow passage section, which is connected to e.g. a vacuum cleaner attachment. The present assembly provides a better seal and simplified construction over previous devices.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: July 28, 1998
    Assignee: The Scott Fetzer Company
    Inventors: Denis Sankovic, Erik S. Larson, Martin Warchola
  • Patent number: 5779286
    Abstract: A pipe joining construction which maintains airtightness for a long period of time, easily ensures the required dimensional accuracy, and surface finish accuracy, and can decrease cost. The pipe joining construction is characterized by a seal member S mounted at the outer periphery of a male end form (2) on a connector (1) or a pipe M and a collar (5) covering the outer periphery of the tip end of the male end form (2). The collar (5) has a tapered portion with a tapered outer periphery. The collar (5) is used as a holding member for the seal member S. Alternately, a ring member (11) is mounted between the seal members and a bead (26) on the male end form (2).
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: July 14, 1998
    Assignees: ITT Automotive, Inc., Sanoh Industrial Co., Ltd.
    Inventor: Mitsuo Kaishio
  • Patent number: 5775743
    Abstract: An apparatus for fluidly coupling a flanged pipe (2) having an annular flange (4) to a threaded pipe (22) having an externally threaded end (20) with an annular lip is disclosed. An annular nut (8) has an internal thread (10) for engaging the threaded pipe. An internal diameter of the annular nut is larger than an external diameter of the flange of the flanged pipe. Thus, the annular nut can slide without deformation over the flange of the flanged pipe. The annular nut also acts as a retaining surface. An internal diameter of an annular insert (12) is smaller than the external diameter of the flange of the flanged pipe. Because of the difference in diameter, the annular insert cannot slide freely over the flange of the flange pipe. Additionally, the annular insert has a split (14) that allows the annular insert to reversibly expand to slip over the flange of the flanged pipe.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: July 7, 1998
    Inventor: Gary P. Rochelle
  • Patent number: 5772253
    Abstract: A pipe repair or jointing collar, comprising a pair or arcuate segments (10) with clamping means (at 11) for drawing the segments together along an axis (XX) to form a collar around a pipe or a plurality of pipe ends, each segment (10) having an associated sealing member comprising a pair of longitudinally-spaced arcuate sealing strips (21) between the respective ends of which extend a pair of longitudinal sealing strips (20) with wedge-like members (18) embedded therein adapted to progress generally inwardly each towards the axis (XX) with respect to the segments (10) as the latter are drawn together in order to force the sealing members (20, 21) radially inwards locally of the wedge-like members (18). The integral formation of the sealing members and wedge-like members provide a minimum number of parts to aid assembly of the collar in hazardous conditions.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: June 30, 1998
    Assignee: AVK Manufacturing Limited
    Inventors: Ian Stuart Hodge, Jens Sonderby Madsen
  • Patent number: 5758910
    Abstract: A gasket assembly is provided for fluid couplings. The gasket assembly includes a gasket having an outer circumferential surface including arc segments defining a minor outside diameter and a plurality of ears projecting outwardly from the arc segments to define a major outside diameter for the gasket. The gasket assembly further includes a split cylindrical sleeve having a plurality of slots disposed and dimensioned for loosely receiving the ears of the gasket. The sleeve and the gasket are dimensioned such that the ears project outwardly beyond the tube to define gripping protrusions that facilitate mounting and removal of the gasket assembly onto the coupling component.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: June 2, 1998
    Assignee: Parker-Hannifin Corporation
    Inventors: Patrick P. Barber, Lewis L. Aldridge
  • Patent number: 5743570
    Abstract: The coupling of this invention consists of a flexible plastic housing having a body and downward extending spout. An annular sealing element is constructed from a rubber or plastic foam material, said element having a central opening which fits over the faucet and forms a friction engagement with the outer surface thereof. The body of the housing fits over the annular seal and engages the sealing element in a friction fit.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: April 28, 1998
    Inventor: Thomas A. Garland
  • Patent number: 5716079
    Abstract: The present invention hose assembly (10) having a distortion limiting wall for creating a dynamic seal comprises a seal (14), a male hose subassembly (12) and a female hose subassembly (16). The seal (14) is concentrically mounted within the female hose subassembly (16) against a radially flanged segment (92) and an extension segment (94) of a female ferrule (74) with a lip (46) of a male ferrule (22) compressing against the seal (14) when the female and male hose subassemblies (16 and 12) are connected together.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: February 10, 1998
    Assignee: Proprietary Technology, Inc.
    Inventor: Donald D. Bartholomew
  • Patent number: 5695226
    Abstract: A locking washer 54a formed in a conical shape and a seal retainer 56a are disposed between a coupling member 30 and the internally directed flange 50 of a fastening nut 36a. These locking washer 54a and seal retainer 56a are placed so that an outer periphery thereof is positioned on the side of said coupling member, while an internal periphery thereof positioned on the internal surface of said fastening nut, when no external force is applied on said locking washer. When the fastening nut 36a is screwed to be tightened on said coupling member, the internal periphery of the locking washer 54a having recesses is reduced with its diameter, and the locking washer 54a together with the locking washer 54a urge the tubular conduit 38a into the coupling member 30 and grippingly deformably retain the conduit as indicated by the locking washer 54b. The conduit coupling of the invention is effectively applicable for any conduit formed of rigid metal or flexible plastic material.
    Type: Grant
    Filed: October 11, 1996
    Date of Patent: December 9, 1997
    Inventor: Osamu Gouda
  • Patent number: 5687997
    Abstract: A sealing gasket and oval concrete pipe combination and method of producing the concrete pipe joint to improve the seal of the concrete pipe joint cooperatively formed between adjacent oval concrete pipes wherein the sealing gasket comprises a retainer element disposed to engage one of the adjacent oval concrete pipes to maintain the position of the sealing gasket relative to the adjacent oval concrete pipes during assembly of adjacent oval concrete pipes, a base member to aid in the alignment of adjacent oval concrete pipes during assembly and cushion adjacent portions of adjacent oval concrete pipes and a sealing element to seal the joint between adjacent oval concrete pipes and wherein each oval concrete pipe comprises a male and female joint member formed on opposite ends thereof to operatively engage the corresponding joint member formed on the next adjacent oval concrete pipe to form the joint therebetween, the male and female joint members including corresponding shaped portions to facilitate alignment
    Type: Grant
    Filed: November 13, 1995
    Date of Patent: November 18, 1997
    Inventor: Roger Beacom
  • Patent number: 5681064
    Abstract: A gasket retainer is provided for a fluid coupling. The gasket retainer is machined or molded from plastic, and defines a short tubular shape with a gasket mounting end and an opposed coupling mounting end. A positioning flange extends inwardly intermediate the opposed ends of the retainer. Portions of the retainer between the positioning flange and the gasket retaining end define a gasket seat with a chamfered entry for securely receiving a gasket therein. Portions of the retainer between the positioning flange and the coupling mounting end define a coupling seat dimensioned to grippingly engage the coupling. The coupling mounting end of the retainer may include slits to facilitate the resilient deflection of the retainer that is required for secure gripping of the coupling component, and to permit leak testing. The retainer may be transparent to permit visual checking for the presence of the gasket.
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: October 28, 1997
    Assignee: EWAL Manufacturing Co., Inc.
    Inventors: Lewis L. Aldridge, Patrick P. Barber
  • Patent number: 5673946
    Abstract: A gasket assembly is provided for fluid couplings. The gasket assembly includes a gasket having an outer circumferential surface including arc segments defining a minor outside diameter and a plurality of ears projecting outwardly from the arc segments to define a major outside diameter for the gasket. The gasket assembly further includes a split cylindrical sleeve having a plurality of slots disposed and dimensioned for loosely receiving the ears of the gasket. The sleeve and the gasket are dimensioned such that the ears project outwardly beyond the tube to define gripping protrusions that facilitate mounting and removal of the gasket assembly onto the coupling component.
    Type: Grant
    Filed: July 7, 1995
    Date of Patent: October 7, 1997
    Assignee: Ewal Manufacturing Co., Inc.
    Inventors: Patrick P. Barber, Lewis L. Aldridge
  • Patent number: 5655795
    Abstract: An inlet duct and seal assembly is disclosed having, as its preferred application, the attachment of an intake air transfer duct to the throttle body of an internal combustion engine. The throttle body is provided with an inlet opening about which extends an annulus defining an outer annular wall. The inlet air duct has an opening which corresponds in diameter to that of the annular outer wall. A seal is disposed in the duct opening and includes an inwardly, radially directed wiper seal which is flexibly deformed between the annular wall and the duct opening when the duct opening is engaged over the throttle body inlet.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: August 12, 1997
    Assignee: General Motors Corporation
    Inventors: Ronald Lee Strnad, Dawn Marie Lervik, Daniel Glenn Stuart
  • Patent number: 5653475
    Abstract: In prior art coolant couplings, multiple parts are provided for guiding and supporting a connector plug in a connector sleeve and for sealing off the connection between the plug and the sleeve. According to the invention, the support function, sealing function and centering function in a connection between a plug and a sleeve of a coolant coupling are integrated in a single component in the form of an annular combination element.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: August 5, 1997
    Assignee: Kuehner GmbH & CIE
    Inventors: Ulrich Scheyhing, Thomas Holzer, Mathias Behr, Horst Hunn
  • Patent number: 5634674
    Abstract: A connecting device comprises a connecting part (2) surrounding and fixed to the end of a tube (1). Connecting part (2) includes a ring-shaped hollow (5) at its downstream end. A flange (8) on th downstream end of the tube is located in hollow (5) and retains the connecting part (2). A ring-shaped groove (9) is also arranged at the downstream end of robe (1). Groove 9 is intended to receive a leakproof gasket (10). Assembly of the connecting part (2) onto the end of the tube (1) is carried out by means of a rivet snap tool (12). The tool (12) includes a support (13), a truncated central protrusion (14), and a rib (15).
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: June 3, 1997
    Assignee: Parker Hannifin RAK SA
    Inventor: Laurent Fuser
  • Patent number: 5605357
    Abstract: A pipe collar comprising first and second arcuate shell members, clamping means for drawing the shell members together around a pipe, and improved sealing means disposed in each of the shell members, for facilitating sealing engagement between the pipe collar and the pipe, and between the respective shell member sealing means.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 25, 1997
    Assignee: M&FC Holding Co.
    Inventor: Edwin A. Bird
  • Patent number: 5605028
    Abstract: Joints between vertical shafts such as concrete manhole elements are sealed by an elastomeric ring and a rigid locating ring. The locating ring keys into the elastomeric ring and holds it in place during and (optionally) after assembly. The principle is applied to various types of joint and the locating ring may be extended to form a liner for the shaft.
    Type: Grant
    Filed: November 3, 1994
    Date of Patent: February 25, 1997
    Assignee: Caswick Limited
    Inventor: Christopher J. Cawte
  • Patent number: 5577777
    Abstract: A ground joint coupling for hoses comprises a stem, a ground joint head formed at a first end portion of the stem, a spud having a first end portion, a molded polymeric annular seat adapted to be positioned between the ground joint head of the stem and the first end portion of the spud, and a nut for connecting the stem to the spud and for compressing the seat between the ground joint head of the stem and the first end portion of the spud. The seat may be made of polytetrafluoroethylene, ultra high molecular weight polyethylene, polyetheretherketone compounds, polyphenylene sulfide compounds, fluoroplastic compounds, or acetal compounds, and the seat may include a filler, such as glass, moly, carbon, bronze, graphite, calcium fluoride, polyphenoline-sulfide, ceramics, silica-based minerals, or combinations thereof.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: November 26, 1996
    Assignee: Dixon Valve & Coupling Co.
    Inventors: Paramjit Singh, Madhu K. Shenoy, Charles H. Schappert
  • Patent number: 5573279
    Abstract: A quick connect coupling for tubing. The coupling includes a tubular male connector member adapted to be telescopically received within a tubular female connector member assembly. The female assembly includes a first member defining a seal bore and a cylindrical socket portion forwardly of the seal bore. A second female member includes a cylindrical portion which plugs into the socket of the first member and is held in position relative to the first member by sonic welding. A plurality of circumferentially spaced feet on the inner end of the second member are positioned proximate the seal to hold the seal in the seal bore and further engage the outer periphery of the pilot portion of the male member to minimize cocking of the male member relative to the female assembly.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 12, 1996
    Assignee: Form Rite Corporation
    Inventors: Perry J. Rea, Michael R. Miller, Dennis G. Kinder, Christopher J. Kargula, William E. Stevens
  • Patent number: 5570911
    Abstract: A connector for connecting two pipes into abutment with each other uses mateable hub members with external flanges. One of the hub members has a concentric recess with a gross tapered surface and a fine tapered surface. The gross tapered surface is inclined at a greater angle relative to the axis than the fine tapered surface. The other hub member has a protruding guide member which will contact the gross and fine tapered surfaces when the hub members are brought together. First the gross tapered surface will decrease misalignment, then the fine tapered surface will complete the alignment of the hub members. A seal is located on seal seats in the hub members. The seal is metal and is carried in a position prior to connection so as to avoid damaging contact of the other hub member when the hub members are brought together.
    Type: Grant
    Filed: April 10, 1995
    Date of Patent: November 5, 1996
    Assignee: ABB Vetco Gray Inc.
    Inventor: Gary L. Galle
  • Patent number: 5564177
    Abstract: A fitting body is provided with a lip that protrudes radially from at least one of the side walls of the seal groove in the sealing face toward the other side wall to form an undercut whereby an annular seal is trapped axially behind the lip to prevent the annular seal from falling out of the groove. The lip is formed by forming the fitting body with a ledge that is integral with the fitting body and protrudes axially from the sealing face adjacent one of the side walls of the groove in the sealing face. The ledge is then flattened to form the lip and an annular seal such as an elastomeric O-ring seal is then inserted into the groove with the annular seal being mechanically trapped axially behind the lip to prevent the annular seal from falling out of the groove.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: October 15, 1996
    Assignee: Parker-Hannifin Corporation
    Inventors: Edward M. Fernandes, Hiralal V. Patel
  • Patent number: 5560656
    Abstract: A pipe connecting structure is provided to mutually join tubes, and includes a pair of flanges formed at end surfaces of a pair of pipes to be connected so as to be opposed to one another, a back-up ring interposed between the pair of flanges, a projection of the back-up ring into which the pair of flanges are fitted, and a rubber packing provided for an inner periphery of the back-up ring to be expanded and deformed in response to internal pressure of the tubes. In the pipe connecting structure, the pair of flanges are brought into pressure contact with the rubber packing and the pair of pipes are coaxially supported by clamping a housing by clamping measures.
    Type: Grant
    Filed: September 2, 1994
    Date of Patent: October 1, 1996
    Assignees: CK Metals, Ltd., Nishihara Engineering Co., Ltd.
    Inventors: Koji Okamura, Takashi Watanabe
  • Patent number: 5558344
    Abstract: A joint for mating exhaust pipes includes an exhaust pipe flange gasket with a metallic body having a planar portion extending laterally inwardly from an outer edge of the body, the planar portion having at least one bolt hole, and a shielding grommet integrally connected to an inner edge of the planar portion. The shielding grommet defines an outer periphery of an aperture, and a sealing element is retained within the grommet. The gasket is disposed between two mating exhaust pipes each pipe having a flange with an aperture and a planar clamping face, at least one of the flanges including a recess adjacent the clamping face. The planar portion of the gasket is disposed between the faces such that when the apertures of the members are aligned with the bolt hole, the shielding grommet is received in the recess.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 24, 1996
    Assignee: Dana Corporation
    Inventors: Michael J. Kestly, Rob Lehmann
  • Patent number: 5549334
    Abstract: A retaining band assembly is provided for use in retaining a seal inside a pipe. The retaining band assembly includes a retaining band having a first end portion and a second end portion. The first end portion of the retaining band has a flat surface and a first edge and the second end portion of the retaining band has a second edge. An expansion block is mounted on the flat surface of the retaining band in spaced-apart relation from the first edge to define a receiving surface on the flat surface. The expansion block includes an upright face extending in a direction generally normal to the flat surface. The second end portion is arranged to engage the receiving surface so that the upright face of the expansion block is positioned to lie in spaced-apart confronting relation to the second edge of the second end portion. A clip engages the second end portion and the first end portion adjacent to the receiving surface. The second edge is disposed between the expansion block and the clip.
    Type: Grant
    Filed: October 20, 1994
    Date of Patent: August 27, 1996
    Assignee: Miller Pipeline Corporation
    Inventors: Kurt E. Zeisler, Ralph E. Miller
  • Patent number: 5542717
    Abstract: A quick connect coupling including a tubular male connector member and a female connector assembly. The male connector member is tubular and defines a front pilot portion and an external bead positioned rearwardly of the pilot portion. The female assembly comprises a tubular housing, a cap which is snap fit over the front end of the housing, a seal which seats in a seal bore defined by the housing, and a seal retainer which is positioned against the front end of the housing and acts to maintain the seal in position within the seal bore.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 6, 1996
    Assignee: Form Rite, Corporation
    Inventors: Perry J. Rea, Michael R. Miller, Dennis G. Kinder, Christopher J. Kargula, William E. Stevens
  • Patent number: 5538297
    Abstract: A quick connector for forming a joint in a fluid line consists of a female connector body having a bore which receives a male member. A sleeve surrounds and is secured on the male member in close fitting relation with the male member and with the female connector body. A retainer extends between the sleeve and a radial face formed in the connector body to secure the male member in the connector body. A secondary retainer provides enhanced retention capability. An optional plug may be positioned in the bore entrance to prevent introduction of external contaminants.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: July 23, 1996
    Assignee: Bundy Corporation
    Inventors: James Mc Naughton, Walfred J. Liimatta, Mark G. Ketcham
  • Patent number: 5524935
    Abstract: A coupling for connecting a pair of pipe ends together. The inventive device includes a main body having a mounting aperture for securing to a first pipe end and a hollow interior which receives a telescoping tube therewithin. A seal is releasably positioned within a circumferential seal mounting groove formed along an interior surface of the main body and engages a seal mounting groove formed along the telescoping tube during a positioning of the telescoping tube within the main body. Once engaged to the seal, the telescoping tube can be slidably positioned within the main body to desired position, with the seal precluding a passage of fluid across a juncture of the telescoping tube and the main body. The telescoping tube can be extended from the main body to couple with a second pipe end positioned a predetermined and fixed distance away from the first pipe end to fluidly couple the pipe ends together.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: June 11, 1996
    Inventor: Michael Everts
  • Patent number: 5518275
    Abstract: A pipe coupling device for holding a metal pipe having a selected diameter within a range of a nominal diameter plus or minus a specified tolerance is also useful for easily determining if any pipe is within specifications. A split metal ring having a diameter equal to the nominal diameter for the metal pipe and a transverse split having a width equal to the specified tolerance is placed around the pipe. A flange having a tapered cylindrical bore having diameter such that the diameter plus twice the thickness of the split metal ring equals the nominal diameter of the metal pipe plus the specified tolerance is fitted over the split metal ring. If the pipe is undersized it will slip through the split metal ring. If the pipe is oversized the flange will not fit completely over the metal ring surrounding the pipe.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: May 21, 1996
    Assignee: Tube-Mac Industries Ltd.
    Inventor: Gary Mackay