Wedge Bushing Patents (Class 285/323)
  • Patent number: 5149145
    Abstract: A hose fitting for sealed connection to a hose, comprising: a first cylindrical member having a small diameter bore portion and a large diameter bore portion connected to the small diameter bore portion the large diameter bore portion having at its axially outer end an axially outwardly narrowing portion; a second cylindrical member axially slidable within the large diameter bore portion and having a radial flange portion and an axial tubular portion extending from the radial flange portion, the radial flange portion being provided with a sealing member and the axial tubular portion being provided with a sealing member; and a collet provided within the large diameter bore portion and having an outer surface engageable with the axially outwardly narrowing portion of the first cylindrical member and radially constrictible when moving axially within the sleeve, the hose being firmly fixed between the collet and the axial tubular portion of the second cylindrical member by axial outward movement of the collet.
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: September 22, 1992
    Assignee: Bridgestone Flowtech Corporation
    Inventors: Takahiro Yokomatsu, Kenji Mine, Shinichiro Kato
  • Patent number: 5131696
    Abstract: A tube joint for annular corrugated tubing includes a body having a sleeve for receiving the end of an annular corrugated tube; at least one circumferential raised lobe on the sleeve for engaging an annular corrugation of the tube; and a collar for engaging the body and including a swaging section having a first camming surface for compressing the lobe radially inwardly to engage a corrugation of the tube.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: July 21, 1992
    Assignee: Gas Research Institute
    Inventors: Robert C. Sykes, Patsy A. Coppola, III, Paul R. Belkus
  • Patent number: 5100183
    Abstract: A pipe coupling for the joining of plain end pipe that includes an annular gasket and a compressible lock ring at each end of the coupling between a tubular middle ring and an annular follower. Bolts extending between the opposite followers are effective when tightened to compress both the gasket and lock ring into their operative relation for sealing and gripping a coupled pipe end, respectively. The follower is comprised of a unitary structure integrally cast to define an internal annular protuberance that juxtaposedly confronts the radially rearward surface of the gasket. Also defined by the follower inward of the protuberance is a central opening at least partially tapered frusto-conically and in which the lock ring is initially supported controllably spaced from the gasket. Tightening of the bolts enables gasket sealing pressure to be achieved about the pipe end sequentially before a completed restraing grip on the pipe end is attained by the lock ring.
    Type: Grant
    Filed: May 10, 1991
    Date of Patent: March 31, 1992
    Assignee: Dresser Industries, Inc.
    Inventors: Robert P. Montesi, Gerald L. Anderson, Phillip E. Frair
  • Patent number: 5090741
    Abstract: A hose end fitting for sealed connection to a hose, comprising: a first cylindrical member having a reduced diameter bore portion and an enlarged diameter bore portion connected to the reduced diameter bore portion; a second cylindrical member axially slidable within the enlarged diameter bore portion of the first cylindrical member and having a radial flange portion and an axial tubular portion extending from the radial flange portion, the radial flange portion being provided with a sealing member, and the axial tubular portion being provided with a sealing member; hose end gripping means provided within the enlarged diameter bore portion of the first cylindrical member and radially expandable and constrictable, the hose being gripped by the hose end gripping means which is radially constricted by axial outward movement of the second cylindrical member; and stopping means received in the enlarged diameter bore portion and adapted to limit axial movement of the second cylindrical member and the hose end gripi
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: February 25, 1992
    Assignee: Bridgestone Flowtech Corporation
    Inventors: Takahiro Yokomatsu, Kenji Mine, Shinichiro Kato
  • Patent number: 5087081
    Abstract: A water supply hose connecting device for a washing machine which is easy to couple with and release from a water tap and which is capable of preventing water leakage. The water supply hose connecting device for a washing machine includes an upper connecting member for the device in a watertight manner to a water tap, an intermediate connecting member formed with a female threaded portion so as to be threadedly coupled to a male threaded portion formed on the upper connecting member. A lower connecting member is formed with openings and a flange so as to be firmly coupled to the intermediated member. A control member is provided for controlling the coupling and releasing of the intermediate connecting member and lower connecting member.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: February 11, 1992
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Eui-Chang Yoon
  • Patent number: 5056830
    Abstract: A flanged coupling for the repair of pipe lines which is engagable over an open pipe. A piston is actuated by drawing two flanges together and setting a slip and a packing to anchor and seal the coupling unit to the pipe. Tension and compression in the pipe does not affect the packing as a ring is positioned between the slip and the packing and its movement towards the packing is limited.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: October 15, 1991
    Inventor: James R. Reaux
  • Patent number: 5042848
    Abstract: A swivelable connector for tubular conduits comprising first and second mutually insertable tubular connector members and a retainer for retaining the second tubular connector member in the first tubular connector member. The retainer comprises engaging members positionable around the second tubular connector member and in the first tubular connector member, urging members engageable with the outer surfaces of the engaging members along a relatively axial movement between the urging members and the engaging members, to radially urge the engaging members into engagement with the second tubular connector member. The urging members can be embodied by a stepped inner surface of the first tubular connector member associating with the movable engaging members, or by the movable urging members associating with the fixed engaging members.
    Type: Grant
    Filed: November 8, 1988
    Date of Patent: August 27, 1991
    Assignees: Fujipura Seiko Co., Daicel Huls Ltd.
    Inventor: Kotaro Shiozaki
  • Patent number: 5037144
    Abstract: A restrained pipe joint is provided for affixing the spigot end of a first pipe into the socket end of a second pipe. The pipe joint includes a circular restraining ring and a retainer ring which includes a groove ring and a plurality of locking segments. When the retaining ring is tightened, the retaining ring is forced against the circular restraining ring, thereby engaging the locking segment teeth into the spigot end of the first pipe. The groove ring abuts the circular restraining ring which holds the spigot end of the first pipe within the socket end of the second pipe.
    Type: Grant
    Filed: May 2, 1990
    Date of Patent: August 6, 1991
    Assignee: AMSTED Industries Incorporated
    Inventors: Robert G. Peting, John J. Budziak
  • Patent number: 5029908
    Abstract: An instant connection device for fluid conduits is provided having a general cylindrical configuration, with a base portion in the form of a ring and flexible jaws whose ends define an annular bearing surface and have on the inside a circular engagement edge. The clip is obtained from a metal sheet blank having a circular central portion extended by first and second evenly spaced lugs with radial axes, the blank being subjected to stamping operations. The clip is cheap and simple to manufacture. Furthermore, it is possible to associate therewith an elastomer block by moulding thereover forming a push ring and a seal.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: July 9, 1991
    Assignee: Legris SA
    Inventor: Daniel Belisaire
  • Patent number: 4984826
    Abstract: A hose fitting for connecting a hydraulic hose to a hydraulic system including an axially inner reduced diameter bore portion and an axially outer enlarged diameter bore portion formed with an inner circumferential groove, comprising: a cylindrical member axially slidable within the enlarged diameter bore portion and having a radial flange portion and an axial tubular portion extending axially outwardly from the radial flange portion; a sleeve mounted on the enlarged diameter bore portion and having an inner inclined surface; a collect arranged between the cylindrical member and the sleeve and having an outer surface engageable with the inner inclined surface of the sleeve and radially inwardly constrictible when moving axially outwardly within the sleeve, the hydraulic hose being crimped by axial outward movement of the collet; and a stop member received in the circumferential groove and adapted to limit axial outward movement of the sleeve and collet.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: January 15, 1991
    Assignee: Bridgestone Flowtech Corporation
    Inventors: Takahiro Yokomatsu, Kenji Mine, Shinichiro Kato
  • Patent number: 4949791
    Abstract: An apparatus is provided for securement onto one end of a continuous length of remedial tubing introducable into a subterranean well and concentrically insertable through production tubing previously positioned within said well, said remedial tubing having a pre-determined tensile strength. In one embodiment, the apparatus comprises inner and outer cylindrical housing members having an opening for receipt of the remedial tubing. A first element on one of the housings has a first tapered surface decreasing in internal diameter from a first end away from the opening to a second end toward the opening.
    Type: Grant
    Filed: February 9, 1989
    Date of Patent: August 21, 1990
    Assignee: Baker Hughes Incorporated
    Inventors: Mark E. Hopmann, Douglas J. Murray, Scott C. Strattan
  • Patent number: 4946213
    Abstract: The disclosure relates to double ended tube coupling (10) having a coupling body (11) with the throughway (12) through which a tube can pass. Collets (16) are located in the open ends of the throughway having resilient arms to engage the tube and tapered internal cam surface (15) are formed adjacent the open ends of the throughway to engage the arms of the collets to cause the collet to lock tubes extending into the ends of the coupling body in the body. Midway along the throughway in the coupling body there are four resilient arms (25) moulded integrally with the wall of the coupling body and inclined towards one end of the coupling body to provide end stops (26) to limit the insertion of a tube into the coupling body from that one end but to permit a tube to pass through the coupling body when inserted from the other.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: August 7, 1990
    Inventor: John D. Guest
  • Patent number: 4932689
    Abstract: A hose coupling assembly (10) of the type adapted to secure a hose (12) to a fitting. The assembly (10) includes a hose (12). A coupling member (16) is provided which includes an insert portion (18) for disposition within an opening (14) in the hose (12). An inner collar (28) is positioned about the exterior of the hose (12) and radially spaced from the insert portion (18) of the coupling member (16). An outer collar (38) is positioned over the inner collar (28) to provide an inwardly directed force thereto. The inner collar (28) has a plurality of slots (34) therein. The slots (34) compress in response to the inwardly directed force from the outer collar (38) to reduce the inner diameter of the inner collar (28) to thereby provide radial compression completely about the hose (12). The compression prevents removal of the coupling member (16) from the hose (12).
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: June 12, 1990
    Assignee: Teleflex Incorporated
    Inventor: David W. Bradley
  • Patent number: 4923220
    Abstract: The disclosures relates to a tube coupling (10) for a tube (11) having a body (12) with open ended throughway (13) to receive the tube and a collet (21) in the open end of the throughway having resilient arms (23) engaging a tapered cam surface (20) in the body to clamp the ends of the arms against a tube extending through the collet into the body to lock a tube in the body.The body has a cylindrical outer surface and a cylindrical cover (30) encircles and is slidable along the body. One end of the cover has an end wall (32) extending across the end of the body opposite the open end of the throughway with an aperture (33) through which the tube extends. The other end of the cover has an internal annular projection (35) which snaps over the end of the cylindrical body to retain the cover on the body while permitting the cover to slide linearly along the body.
    Type: Grant
    Filed: March 22, 1989
    Date of Patent: May 8, 1990
    Assignee: John Guest Limited
    Inventors: John D. Guest, Bo Harde
  • Patent number: 4915177
    Abstract: A blast joint and related handling apparatus and method for installing the blast joint in a pressurized well, using a snubber unit. The blast joint has a pressure rated protective jacket, a pressure operated ring load compensator, and an adjustable tubing anchor.
    Type: Grant
    Filed: July 19, 1989
    Date of Patent: April 10, 1990
    Inventor: Jack R. Claycomb
  • Patent number: 4909546
    Abstract: A mechanism for locking a casing in a stationary support has an intermediate element which can move elastically in a receptacle of the support. The receptacle has upper and lower conical flanks. Conical inner grooving of the intermediate element has conical flanks of an angle at the apex greater than the angle at the apex of the upper flanks of the receptacle and less than the angle at the apex of the corner flank. The resultants of the forces to which the intermediate element is subjected has a radial component. When pulled upward, the radial component is outward. Under a downward force, the radial component is inward.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: March 20, 1990
    Assignee: Vetco Gray Inc.
    Inventor: Philippe C. Nobileau
  • Patent number: 4906028
    Abstract: A hose fitting for connecting a hydraulic hose to a hydraulic system including an axially inner reduced diameter bore portion and an axially outer enlarged diameter bore portion formed with an inner circumferential groove, comprising: a cylindrical member axially slidable within the enlarged diameter bore portion and having a radial flange portion and an axial tubular portion extending axially outwardly from the radial flange portion; a collet having an outer surface; a sleeve arranged between the cylindrical member and the collet and having an inner inclined surface engageable with the outer surface of the collet, the collet being radially inwardly constrictible when the sleeve is moving axially outwardly, the hydraulic hose being crimped by axial outward movement of the sleeve; and a stop member received in the circumferential groove and adapted to limit axial outward movement of the sleeve and collet.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: March 6, 1990
    Assignee: Bridgestone Flowtech Corporation
    Inventors: Takahiro Yokomatsu, Kenji Mine, Shinichiro Kato
  • Patent number: 4884830
    Abstract: A pressure balanced coupling device for quick connection and disconnection with at least one mechanism. The device operates to maintain a sealed flow-through connection between two devices which may also contain a pressurized medium such as refrigerants. The preferred device permits non-destructive gripping of tubing while affording readily selectable means for safely releasing pressure from within the device prior to releasing the gripping connection provided by this coupling device.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: December 5, 1989
    Assignee: FasTest, Inc.
    Inventor: Stanlee W. Meisinger
  • Patent number: 4871196
    Abstract: A fitting arrangement where a fitting body has a collar portion for accommodating an end of an inner plastic tube. The collar portion defines a tapered seat which cooperates with a tapered ferrule which surrounds the tube and which abuts a tapered gripping sleeve which also surrounds the tube. An intermediate one-piece annular member has a nut part which externally threads onto the collar portion, and also has an interior conical seat which wedgingly cooperates with the gripping sleeve to wedgingly hold the ferrule and gripping sleeve between the opposed seats to radially compress them against the inner tube. This intermediate member also has a collar part projecting axially thereof for surrounding the end of a concentric outer tube. An annular nut surrounds the outer tube and is externally threaded onto the collar part.
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: October 3, 1989
    Assignee: Mace Corporation
    Inventor: Kenji A. Kingsford
  • Patent number: 4867488
    Abstract: This invention pertains to bolted mechanical pipe joints using toothed gripper rings to prevent separation of the pipe.
    Type: Grant
    Filed: September 6, 1988
    Date of Patent: September 19, 1989
    Assignee: United States Pipe and Foundry Company
    Inventor: Lawrence S. Jones
  • Patent number: 4865363
    Abstract: A pipe connection device for a scientific equipment in which a reduced diameter head having slits is formed at a front end part of a clamp covering a packing fitted to an outer circumference of the open end part of the pipe. A part of the packing is positioned within the reduced diameter head. The reduced diameter head, at its extremity end, forms an inclined cylinder part fitted to an inner inclined surface of the fixed screw and also forms a cylinder part to which a pressing ring is engaged and fitted adjacent to the inclined cylinder part. The reduced diameter head is reduced in its diameter by the inner inclined surface under screwing of the fixed screw. The pressing ring, formed to have a slightly smaller diameter than an outer diameter of the cylinder part, is pressed against an open end surface of the inner inclined surface. The pressing ring is raised up over the inclined cylinder part and press fitted onto the cylinder part.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: September 12, 1989
    Assignee: Kyoshin Industries Co., Ltd.
    Inventor: Kazutomo Takahashi
  • Patent number: 4832379
    Abstract: A coupling assembly for mechanically coupling the plain end of a pipe, comprising a pair of standard forged flanges as basic components between which is disposed a wedge ring. One of the flanges is of the slip-on type and has associated with it a conical collet bore for receiving the wedge ring. When tension bolts assembled through the flanges are tightened the wedge ring is driven into the collet bore and tightly radially against the periphery of the pipe to thereby lock the coupling to the pipe.
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: May 23, 1989
    Assignee: The Pipe Line Development Company
    Inventors: Edward B. Smith, William B. Smith, Elmer V. Rogers Jr., John A. Spisak
  • Patent number: 4822075
    Abstract: A flanged coupling for the repair of pipelines and risers, especially for sub-marine repair and construction, and of unit configuration engageable over a first open pipe section and its flange to seal with a flange of a second open pipe section, and having a piston actuated by drawing said two flanges together and a shear member sequentially controlling operation of a slip and a packing to anchor and seal the coupling unit to the first pipe section operating a slip and a packing to anchor and seal the coupling unit to the first pipe section.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: April 18, 1989
    Inventor: James R. Reaux
  • Patent number: 4807911
    Abstract: Two embodiments of a push in tube fitting converter are disclosed. Each includes a nut, a tube gripping member such as a collet or ring, an O-ring, and a sealing retainer. In one embodiment, the interior of the nut includes a threaded portion at one end, a cylindrical seal seat, and a smaller diameter end cylindrical portion, with an internal shoulder between the threaded portion and the seal seat. The gripping member operatively engages the interior of the nut. The O-ring forms the seal between the seal seat of the nut, and tubing inserted through it. The sealing retainer is engaged by the internal threads of the nut to hold the sealing retainer, O-ring, and gripping member in place within the nut. The sealing retainer engages both the internal shoulder of the nut and a fitting body on which the nut is to be threaded, thereby forming the seal between nut and fitting body.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: February 28, 1989
    Inventor: Charles D. Short
  • Patent number: 4796924
    Abstract: A multi-passage tube coupling for coupling a plurality of parallel or concentric tubes or tube passages of a multi-passage tube for supplying a fluid to actuators. The coupling comprises a body and a coupling member, the body having as many passages or holes as the number of the tubes or tube passages of the multi-passage tube. At least one of the tubes or tube passages is coupled to the corresponding actuator through a passage defined in the coupling member.
    Type: Grant
    Filed: February 2, 1988
    Date of Patent: January 10, 1989
    Assignee: Shoketsu Kinzoku Kogyo Kabushiki Kaisha
    Inventors: Seiji Kosugi, Norio Ando, Hisao Sagara
  • Patent number: 4787657
    Abstract: A screw coupling which can be applied to surround a cable, a hose, a conduit or a conductor has a nipple with an externally threaded section adjacent an end section with axially parallel prongs whose width decreases in a direction away from the first section toward an end face of the end section. Those end portions of alternate prongs which are adjacent the end face are enlarged in the circumferential direction of the nipple to engage a cable or the like when the prongs are flexed toward the axis of the nipple by a cap nut a first portion of which mates with the first section of the nipple and a second portion of which flexes the prongs toward the axis of the nipple. The remaining prongs have enlarged portions which are remote from the end face and can form a ring in response to predetermined flexing of the prongs, the same as the enlarged end portions of the alternate prongs.
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: November 29, 1988
    Assignee: Hermann Kleinhuis GmbH & Co. KG.
    Inventor: Dieter Henniger
  • Patent number: 4722560
    Abstract: The disclosure relates to a quick release tube couplings in which a collet with resilient arms is arranged to co-operate with a tapering cam surface in a member surrounding the collet to force the arms to grip a tube within the collet. The member is formed from two, male and female parts each having a bore, the male part bore being tapered to provide the cam surface. The male and female parts are assembled with a pair of annular surfaces on the respective parts spaced apart by an edge or projection on one of the surfaces and ultrasonic vibration is applied to soften the ridge to cause the surfaces to weld together and to allow two other opposed annular surfaces to come together and be welded by said ultrasonic vibration to weld the two parts together at two spaced annular region.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: February 2, 1988
    Inventor: John D. Guest
  • Patent number: 4712811
    Abstract: A connector for and a method of connecting pipe members for a variety of purposes including (but not limited to) plumbing, hydraulics, pneumatics and medical purposes. Wherein the connector which can be used in conjunction with other fittings, has a connector body with an opening to receive a pipe and a tapered internal bore in the opening to receive a substantially coaxial inner sleeve adapted to engage the surface of the pipe in the connector. After insertion, the pipe is then moved in an opposite direction to the direction of insertion and the inner sleeve is adapted to slide wherein internal bore to wedge into frictional engagement and connection with the outer surface of the pipe and the tapered surface of the internal bore so that when the pipe is sealably engaged within the connector the pipe can be disengaged from the connector by a reverse operation.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: December 15, 1987
    Inventor: Jan H. Wier
  • Patent number: 4712813
    Abstract: A stab-type coupling apparatus adapted to receive an associated pipe end in a body thereof and prevent its withdrawal therefrom. The coupling apparatus includes an elongated hollow stiffener received in a coupling body recess and providing internal support for the associated pipe end. A retaining ring retained between the body and stiffener has a radially inward extending toothed portion that grippingly engages the external surface of the associated pipe end. A seal means is disposed on an axially inner side of a collet retainer to seal along a peripheral portion of the pipe end. The collet retainer includes a toothed internal surface that selectively engages the pipe end during attempted withdrawal from the coupling body. A generally frustoconical member cams the collet retainer into gripping engagement with the pipe end. A gasket is radially and axially compressed at an outer end of the recess and disposed on an opposite side of the collet retainer from the seal means.
    Type: Grant
    Filed: October 28, 1986
    Date of Patent: December 15, 1987
    Assignee: Perfection Corporation
    Inventors: David P. Passerell, Danny G. Rogge
  • Patent number: 4711426
    Abstract: A combination valve and flanged connector for connecting a metallic or non-metallic pipe directly to the valve body is disclosed. The flanged valve connector includes a radial flange secured on a longitudinal end of the valve body. Secured to the radial flange is a tubular member for receiving the end section of a pipe to be connected with the valve body. The tubular member has a generally frusto conical end sized to snugly receive a sealing gasket in sealed relationship between the tubular member and the valve body. The tubular member also has a length sufficient to be engaged by a retainer for holding the sealed gasket in place and to also support a follower ring engaging the gasket retainer, the follower ring being provided with a deep, longitudinally extending strengthening flange.
    Type: Grant
    Filed: October 22, 1986
    Date of Patent: December 8, 1987
    Inventor: Thomas R. Bodnar
  • Patent number: 4696497
    Abstract: The invention proposes a quick connection which has utility in a wide field, for instance, for connecting fluid lines, electric cables, etc., and comprises an inserted tubular end portion, which is formed near its extreme end with concave recesses serving as detent means, and which is provided with a radially acting locking collar. The second tubular end portion comprises a socket, which contains an inserted locking ring, which has detent fingers, which releasably interlock with the concave recesses of the inserted tubular end portion and are provided on their back side with reversely foldable, thin webs which bear on the inside surface of the socket. Such quick coupling can be resiliently interlocked simply in that the tubular end portions are urged into each other, and can be unlocked only by an angular movement. The coupling is particularly adapted to be connected and disconnected by industrial robots in automated production sequences. The coupling transmits longitudinal forces and is radially locked.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: September 29, 1987
    Inventor: Hermann Schwarzensteiner
  • Patent number: 4687233
    Abstract: A pipe connector structure, for coaxial pipe sections having a common liner, and including a pair of flange members, constructed to be drawn together by suitable bolt or other attachment means, which flange members include flange bodies having remote flange ends that are inwardly and downwardly tapered and constructed to coact with pipe securement rings. Between such rings is a sleeve, split in two halves along a diameter thereof for positionment about the liner and constructed, if expanded radially outwardly by radial expansion of the liner, upon the application of internal pressure means, to come in contact with the inner surfaces of the machined flange members to delimit such radial expansion. Alternatively, where the liner is essentially non-radially expandable, then gaps in the split sleeve can be closed and such sleeve and flanges can act conjointly as to the liner to counteract radial liner burst pressures. Pipe ends to be coupled together are positioned against interior shoulders of the split sleeve.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: August 18, 1987
    Assignee: R-Con International, Inc.
    Inventor: William D. Edwards
  • Patent number: 4679830
    Abstract: The invention relates to a tube coupling for connecting a tube portion of synthetic resin to another conduit element with resistance to tensile stress in such a way that said tube portion is firmly held to resist high tensile forces due to shrinkage of the tube conduits or other high tensile forces on the one hand, whereas said tube portion is clamped within the coupling in such a way that the synthetic resin thereof is not overloaded by clamping forces. This is achieved by holding the tube portion of synthetic resin by a combination of a grip ring and an elastic sealing ring.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: July 14, 1987
    Assignee: Dresser Europe S.A.
    Inventor: Frans J. J. A. Kok
  • Patent number: 4660803
    Abstract: The present invention is a quick coupling connector for use in connecting and disconnecting hoses adapted for conducting liquids. The connector includes a unitary molded plastic male connector body having a flow through passage extending therethrough. The body includes a guide cylinder, a lock recess adjacent to the guide cylinder, and a seating cylinder adjacent to the lock recess. The seating cylinder has an annular seal groove. An inner body O-ring is positioned in the seal groove. A unitary molded plastic female connector body having a flow through passage selectively mateably receives the male connector body. The female connector body includes a guide tube receiving the guide cylinder, a lock tube having a lock finger aperture, and a seating cylinder connected to the guide cylinder and sealingly engageable with the inner body O-ring. A mounting tube is connected to the seating tube. A tubular hose nose is mounted in the mounting tube.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: April 28, 1987
    Assignee: Suncast Corporation
    Inventors: Damon A. Johnston, George L. Garcia
  • Patent number: 4657286
    Abstract: The disclosure relates to a tube coupling having a hollow tubular body having collet form couplings at either end thereof to receive and lock tubes in the body at either end. The body has an internal annular wall and an inner lines which extends over the wall shoulder and along the body to either side of the annular wall shoulder towards the locations of the collets. The liner is formed from a material which is inert to the fluid to be passed through the tubes and has integral annular seals to seal with the tubes inserted in the body to prevent loss of fluid from the tubes into parts of the body not covered by the liner.
    Type: Grant
    Filed: March 10, 1986
    Date of Patent: April 14, 1987
    Inventor: John D. Guest
  • Patent number: 4653781
    Abstract: A quick connect coupling assembly includes a socket defined by a stepped bore in a body member, a tubular retainer nut threadingly received in the socket and a plug member carrying an O-ring seal that extends through the retainer nut and into the socket an axial extent whereby the O-ring seal is positioned to effect a seal relative to the plug member and an internal wall of the socket. The retainer nut having a shank portion defining circumferentially spaced apart flexible retainer fingers adapted to abut against an inclined radial shoulder of the plug member to effect its axial operative position within the socket.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: March 31, 1987
    Assignee: General Motors Corporation
    Inventors: Gerald R. Sheets, Frederick A. Geiger
  • Patent number: 4652024
    Abstract: A telescoping handle and liquid pressure conduit concentrically positioned inside the handle, with a liquid seal holder affixed to an outer part of the pressure conduit, and a resilient sealing member in the seal holder to sealingly engage against an inner part of the pressure conduit, so as to permit simultaneous telescoping of the outer handle and the inner pressure conduit.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: March 24, 1987
    Assignee: Graco Inc.
    Inventor: Duane D. Krohn
  • Patent number: 4645246
    Abstract: The disclosure relates to a tap or valve body (10) having a bore (11) to receive a tube which is locked in the bore by means of a collet form tube coupling (21) and is sealed to the bore by O-ring seals 17, 18. The collet is encircled by a plastics insert sleeve (22) located in a counter-bore (19) at the end of bore 11 and held therein by a spring ring (39) embedded in the sleeve. The insert sleeve has a tapered bore (27) which converges towards the end of the tape or valve body and with which resilient fingers (32) of the collet engage to be compressed around the tube by the convergent bore to grip and hold the tube in the body.
    Type: Grant
    Filed: March 27, 1986
    Date of Patent: February 24, 1987
    Inventor: John D. Guest
  • Patent number: 4637636
    Abstract: The disclosure relates to tube couplings in which a hollow body (10) has an opening (11) to receive a tube (15) and a collet (32) having resilient arms encircling the tube in the body to grip the tube. An annular cam (22) is mounted in the body and has a tapered internal cam surface (31) engaged by the collet arms (33) which reduces towards the open end of the body to increase compression of the arms against the tube as the collet is drawn towards the open end of the body to lock the tube in the body. The cam member (27) is mounted in the body for axial adjustment with respect to the body, for example by a screw engagement (28) in the body, to enable the cam to be adjusted with respect to the collet to vary the compressive force applied to the resilient arms.
    Type: Grant
    Filed: October 30, 1985
    Date of Patent: January 20, 1987
    Inventor: John D. Guest
  • Patent number: 4637639
    Abstract: A connector for engaging non-metallic liquid-tight conduit includes an inner ferrule having a cylindrical portion with an annular rib dimensioned to be inserted into the end of the conduit, and a surrounding sleeve having a conical outer surface and axially extending slots. The sleeve surrounds the conduit and is engaged by a compression nut which radially inwardly decreases the radius of the sleeve, engaging the conduit between the smaller compressed end thereof and the annular rib on the ferrule. The connector also includes a body with threads to engage the nut and the ferrule and body include means for limiting rotational motion of the ferrule.
    Type: Grant
    Filed: July 22, 1985
    Date of Patent: January 20, 1987
    Assignee: Harvey Hubbell Incorporated
    Inventors: Robert W. Jorgensen, Michael R. Nowak
  • Patent number: 4627644
    Abstract: An arrangement for rapid and simple push-in connection of one end of a hose, pipe or similar element. The outer surface of the end is made of a soft material into which at least one retaining device appertaining to the arrangement can be forced to retain the end inside the arrangement. The arrangement comprises an outer part, an insertion part disposed therein which bears the retention devices, and seals disposed in a cavity which can co-act with the external surface of the end. The insertion part has an inherent retaining or locking effect on the pipe or other element and a retaining position wherein it is movable in relation to the outer part. The seals comprise two sealing devices arranged one on either side of a guiding device disposed in the cavity. This guiding device is provided to guide the end while it is being pushed in. After the push-in connection has been made, the guiding element continues to center the end inside the cavity.
    Type: Grant
    Filed: August 9, 1983
    Date of Patent: December 9, 1986
    Inventor: Kjell R. Ekman
  • Patent number: 4624483
    Abstract: A coupling apparatus is provided for connection to a cylindrical member. The coupling apparatus includes a body member and an annular seal between the body member and the cylindrical member. A plurality of collet sections are disposed about the body member, and each collet section has a first end connected to the body member and a second end adapted for engagement with a downward facing surface of a shoulder of the cylindrical member. An outer sleeve is slidable relative to the collet sections between an open position wherein the second ends of the collet sections are held in a relatively radially expanded position and a closed position. A release device is operably associated with the plurality of collet sections and the outer sleeve for moving the second ends of the collet sections to their relatively radially expanded position upon sliding of the outer sleeve from its closed position to its open position.
    Type: Grant
    Filed: February 19, 1986
    Date of Patent: November 25, 1986
    Assignee: Halliburton Company
    Inventor: James L. Stromberg
  • Patent number: 4613160
    Abstract: A remotely actuable device for connecting together pipeline end portions that may be positioned at varying distances from each other including a hydraulic actuation mechanism utilized in combination with a series of housing and camming surfaces to effect gripping and sealing action.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: September 23, 1986
    Assignee: Gripper, Inc.
    Inventor: Bobby J. Reneau
  • Patent number: 4613158
    Abstract: A coupling unit comprising a first coupling part and a second coupling part. The second coupling part can be displaced longitudinally relative to the first coupling part by means of screw threads or the like. The first coupling part is equipped with a first nut-shaped section and the second coupling part with a second nut-shaped section. The second nut-shaped section has a cross-section measurement which allows passage of the internal surface of a tightening and/or loosening sleeve, when the latter is passed over the second nut-shaped section, to co-act with the first nut-shaped section.
    Type: Grant
    Filed: August 10, 1983
    Date of Patent: September 23, 1986
    Inventor: Kjell R. Ekman
  • Patent number: 4606783
    Abstract: In a tube coupling of the kind comprising a body member with a bore having an axially tapered portion, a collet having arms extending into said portion of the bore, the tapered portion being such that axially outward movement of the collet arms engaging the tapered portion causes the collet arms to be pressed inwardly for gripping a tube in the bore, the body member is formed of inner and outer parts, at least the inner part being of plastics material which is, by ultrasonic vibrations, caused to enter into recesses, grooves, serrations or the like in an outer part.
    Type: Grant
    Filed: December 1, 1983
    Date of Patent: August 19, 1986
    Inventor: John D. Guest
  • Patent number: 4588214
    Abstract: In a coupling formed of two components, one of which has a body portion with a bore having a taper to give a decreasing diameter towards an entry end of the bore, a collet having resilient arms being located in the bore and the second component having a tube adapted for insertion into said collet through the entry end to be gripped thereby, the tapered bore causing the grip to be tightened if the second component is pulled in the outward direction from the bore in the first component, in order to prevent separation of the components after assembly, the collet has a portion protruding out of the first component through said entry end of the bore and the second component has a portion extending around the protruding end of the collet and the two components having surfaces which abut to prevent the collet being pressed inwardly into the bore in the first component by moving the two components towards one another.
    Type: Grant
    Filed: November 8, 1983
    Date of Patent: May 13, 1986
    Assignee: John Guest Limited
    Inventor: Timothy S. Guest
  • Patent number: 4575274
    Abstract: The compressive force which the gripping means of a connector assembly, having a nut portion rotatably securable to a body portion, can exert upon a coaxial cable in limited to a pre-determined value by a frangible torque transmitting section, fracturable at a known shear strength, intermediate the body portion engaging section and the tool receiving section of the nut.
    Type: Grant
    Filed: March 2, 1983
    Date of Patent: March 11, 1986
    Assignee: Gilbert Engineering Company Inc.
    Inventor: Robert D. Hayward
  • Patent number: 4573716
    Abstract: In a tube coupling of the kind having a collet for gripping a tube within a body member, the collet having arms co-operating with a tapered bore in the body member so that a pull on the tube pulls the collet outwardly and so causes the collet arms to grip the tube more firmly, and wherein the tube can be released from the coupling by axial inward pressure on a head on the collet, accidental release of the tube is prevented by an end cover through which the tube passes and which surrounds the collet head, the end cover resiliently engaging in the body member.
    Type: Grant
    Filed: December 8, 1983
    Date of Patent: March 4, 1986
    Inventor: John D. Guest
  • Patent number: 4572548
    Abstract: A novel pipelock comprising a first pair of rings facing each other axially, with the inner diameter of each ring at the outer face being smaller than the inner diameter of each ring at the inner face, each of said first pair of rings comprising at least two circumferential parts, means to restrain longitudinal movement of facing circumferential parts outwardly from each other, at least one second ring comprised of at least two circumferential parts connected to each other, outwardly surrounding said first pair of rings, and constraining outward radial movement of said first pair of rings.
    Type: Grant
    Filed: October 4, 1983
    Date of Patent: February 25, 1986
    Assignee: O'Donnell & Associates, Inc.
    Inventors: Jan S. Porowski, William J. O'Donnell
  • Patent number: 4568111
    Abstract: A locking connection for releasably attaching a handling socket to the duct tube of a fuel assembly for a nuclear reactor. The connection comprises a load pad housing mechanically attached to the duct tube and a handling socket threadably secured within the housing. A retaining ring is interposed between the housing and the handling socket and is formed with a projection and depression engageable within a cavity and groove of the housing and handling socket, respectively, to form a detachable interlocked connection assembly.
    Type: Grant
    Filed: August 29, 1983
    Date of Patent: February 4, 1986
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: David W. Christiansen, Richard A. Karnesky