Gland Patents (Class 285/356)
  • Patent number: 10711927
    Abstract: A ferrule includes a flange and an elongated sleeve extending from the flange. The flange and the elongated sleeve define a bore, which is configured to receive a length of flexible tubing. The elongated sleeve is configured to hold the flexible tubing within the bore via friction. For example, the elongated sleeve is configured to hold the flexible tubing within the bore without compressing the flexible tubing. In this manner, flow through the flexible tubing may be unrestricted. In some embodiments, a distance of flexible tubing contacted by the elongated sleeve is sufficient to hold the flexible tubing within the elongated sleeve without tightly holding or compressing the flexible tubing. This configuration can prevent narrow tubing from becoming blocked and/or the tubing bore can remain smooth (e.g., for accurate mixing, constant fluid flow, and so forth).
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: July 14, 2020
    Inventor: Daniel R. Wiederin
  • Patent number: 8840152
    Abstract: Thin-walled pipe joints can include a first pipe and a second pipe. The first pipe includes a hollow pin member positioned at about an end of the first pipe. The second pipe includes a hollow box member positioned at about an end of the second pipe. The hollow box member is further configured to at least partially surround the pin member of the first pipe. The joint also includes a first ring placed adjacent an end of the hollow pin member and a second ring engaged with the box member. The second ring substantially axially abuts against the first ring and the first ring substantially axially abuts the box member. The second ring further generally extends from the first ring in a direction opposite to the end of the pin member adjacent to the box member.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: September 23, 2014
    Assignee: Tenaris Connections Limited
    Inventors: Gabriel Carcagno, Alfredo Quiroga, Gaston Mazzaferro
  • Patent number: 8454058
    Abstract: High pressure hydrogen fittings and methods of sealing a pipe to a valve body. In one embodiment, the high pressure hydrogen fitting includes a pipe having flange near one end; a nut surrounding the pipe on a low pressure side of the flange, the nut having threads mating with threads on a valve body; a lip seal surrounding the pipe on a high pressure side of the flange, the flange supporting the lip seal, the lip seal pointing toward the valve body, the lip seal having a cylindrical sealing surface, the cylindrical seal surface engaging the valve body; wherein when the pipe containing hydrogen is connected to a valve body, a seal is maintained at a pressure of up to about 87.5 MPa.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: June 4, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Rainer Pechtold, Jorg Schulze
  • Patent number: 8205916
    Abstract: A metal ring gasket provides a high-pressure temperature tolerant metal-to-metal seal between subcomponents of a threaded union. The metal ring gasket is received in an annular cavity formed between mating surfaces of the subcomponents of the threaded union. The metal ring gasket is capable of maintaining a fluid seal even at very high temperatures resulting from direct exposure to fire. At high fluid pressures the metal ring gasket is energized because hoop stress induced by the fluid pressure forces the metal ring gasket into tighter contact with the subcomponents of the threaded union.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: June 26, 2012
    Assignee: Stinger Wellhead Protection, Inc.
    Inventors: L. Murray Dallas, Bob McGuire, Danny Lee Artherholt
  • Publication number: 20110298210
    Abstract: The invention relates to a plug unit 3 for connecting capillary tubes, especially for high-performance liquid chromatography, with a plug capillary tube 10 that projects through a hole of a plug housing 20, wherein the plug housing 20 is constructed so that it can be connected detachably to a bushing unit 5, wherein the front end of the plug capillary tube 10 projects into a capillary tube receptacle opening 53 of the bushing unit 5 when the plug unit 3 and bushing unit 5 are connected, and with its end face essentially aligned opposite a front end of a bushing capillary tube 57 or a bushing capillary tube opening 55 of the bushing unit 5 and the end face of which is butted against, and wherein the plug housing 20 applies a force, with its end face facing the end of the plug capillary tube 10, directly or indirectly on an annular sealing element 40 surrounding the plug capillary tube 10 in the region of the front end of the plug capillary tube 10 when the plug unit 3 and bushing unit 5 are connected such that
    Type: Application
    Filed: November 27, 2009
    Publication date: December 8, 2011
    Inventors: Hermann Hochgraeber, Adolf Satzinger
  • Patent number: 7922216
    Abstract: A metal ring gasket provides a high-pressure temperature tolerant metal-to-metal seal between subcomponents of a threaded union. The metal ring gasket is received in an annular cavity formed between mating surfaces of the subcomponents of the threaded union. The metal ring gasket is capable of maintaining a fluid seal even at very high temperatures resulting from direct exposure to fire. At high fluid pressures the metal ring gasket is energized because hoop stress induced by the fluid pressure forces the metal ring gasket into tighter contact with the subcomponents of the threaded union.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: April 12, 2011
    Assignee: Stinger Wellhead Protection, Inc.
    Inventors: L. Murray Dallas, Bob McGuire, Danny Lee Artherholt
  • Publication number: 20110062706
    Abstract: A ring-shaped seal has projections on an outwardly facing surface in the form of tubes which have a longitudinal axis oriented perpendicular to a plane containing the ring. The seal is received within a channel defined by segments attached end to end forming a coupling for coupling pipe elements in end to end relation. The segments have pockets which receive the projections. The projections support the segments in spaced apart relation to allow the pipe elements to be inserted into the coupling without loosening or disassembling it. The projections deform when the segments are drawn toward one another by adjustably tightenable fasteners and allow the segments to engage and capture the pipe elements in end to end relation.
    Type: Application
    Filed: September 17, 2009
    Publication date: March 17, 2011
    Applicant: Victaulic Company
    Inventor: Vance W. Henry
  • Patent number: 7654585
    Abstract: A metal ring gasket provides a high-pressure temperature tolerant metal-to-metal seal between subcomponents of a threaded union. The metal ring gasket is received in an annular cavity formed between mating surfaces of the subcomponents of the threaded union. The metal ring gasket is capable of maintaining a fluid seal even at very high temperatures resulting from direct exposure to fire. At high fluid pressures the metal ring gasket is energized because hoop stress induced by the fluid pressure forces the metal ring gasket into tighter contact with the subcomponents of the threaded union.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: February 2, 2010
    Assignee: Stinger Wellhead Protection, Inc.
    Inventors: L. Murray Dallas, Bob McGuire, Danny Lee Artherholt
  • Patent number: 7484776
    Abstract: A metal ring gasket provides a high-pressure temperature tolerant metal-to-metal seal between subcomponents of a threaded union. The metal ring gasket is received in an annular cavity formed between mating surfaces of the subcomponents of the threaded union. The metal ring gasket is capable of maintaining a fluid seal even at very high temperatures resulting from direct exposure to fire. At high fluid pressures the metal ring gasket is energized because hoop stress induced by the fluid pressure forces the metal ring gasket into tighter contact with the subcomponents of the threaded union.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: February 3, 2009
    Assignee: Stinger Wellhead Protection, Inc.
    Inventors: L. Murray Dallas, Bob McGuire, Danny Lee Artherholt
  • Patent number: 7090258
    Abstract: Sealing socket (1) and method for arranging a sealing socket to a tube (2). A sealing socket (1) includes a sleeve (3) having an outer dimension somewhat larger than the tube (2) to be sealed, defining an annular compartment (4) between the tube (2) and the sleeve (3), in which a gasket (6) is introduced. The gasket material is pressurised by a ring (7) which is permanently connected by welding (8) to the sleeve (3).
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: August 15, 2006
    Assignee: Stiching Energieonderzoek Centrum Nederland
    Inventors: Frans Rusting, Petrus Paulus Antonius Catharina Pex, Jacobus Anna Josephus Peters, Gerard De Jong
  • Patent number: 6712090
    Abstract: A fluid tank valve assembly of the type employed for water tanks for toilets has a tank refill valve located atop a fluid inlet supply tube. The refill valve has a lever that is raised and lowered to open and close the valve. An inverted, cup-shaped hood is positioned atop the valve and a float is located about the skirt of the hood and secured thereto by the force of friction. The float can be moved longitudinally along the skirt of the hood in order to vary the water level at which the hood bears down upon the lever arm or is lifted from the lever arm, thereby varying the water level at which the valve is actuated. The valve itself is equipped with a metering pin that is configured to reduce the likelihood of clogging in the longitudinal passage of the core of the valve diaphragm.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: March 30, 2004
    Inventor: Anthony Brandelli
  • Patent number: 5997050
    Abstract: A thin-walled steel tubing is to be constructed with a double cone coupling nipple for the tight screwed connection with a counterpart by way of a cap screw in a crack-resistant manner. The steel tubing is thin-walled and constructed of high-strength steel. With respect to the remaining tubing area, the nipple has at least partially at least approximately a double wall thickness. The steel tubing is not soft annealed at any point including the whole area of the nipple. With respect to the material, the contact surfaces of the nipple are harder than the surfaces of the countercontact. The cone angle of the sealing surface of the nipple measures over
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: December 7, 1999
    Assignees: DaimlerChrysler AG, SIEBE Fluid Systems GmbH
    Inventors: Gunter Fleckenstein, Thomas Schmitz, Manfred Meyer, Siegbert Moosbrugger
  • Patent number: 5803513
    Abstract: In restrained sealed bolted joints of fluid piping systems, including both plastic and metallic pipe, improvements have previously been made in providing adequate grip rings to keep the inserted ends of pipe in place. When larger diameter pipes, especially larger diameter plastic pipes, were inserted into these sealed bolted joints, some difficulties were encountered. Therefore, a compression control ring is now provided to controllably transfer and to limit the tightening force component, which moves the gasket into sealing contacts with the respective pipe sections being joined. Also circumferentially spaced skid pads are positioned about each grip ring, assuring each respective grip ring will not prematurely commence gripping a pipe. In addition, the gland has been improved, so any possible large assembly forces, or any large fluid pressures in the piping system will not be effective in distorting the gland.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: September 8, 1998
    Inventor: Robert J. Richardson
  • Patent number: 5738140
    Abstract: An adjustable-height extension stem and valve box assembly is provided for use with buried valves that is lightweight, readily adjustable to a large range of heights, and is capable of absorbing loads and impacts such that the loads and impacts are substantially not transmitted to the buried valve or surrounding pipeline. The valve box is made up of a valve box base, a valve box lower section, a valve box upper section that telescopes within the lower section, and a valve box top. An upper section of the extension stem extends from the interior of the valve box top through a bottom opening, and an extension stem lower section extends downwardly from the upper section, with the two sections being made from square hollow metal tubing such that the upper section telescopes within the lower section. A grit washer having grooves cut in a bearing surface is attached to the extension stem upper section and supports the upper section in place within the valve box top.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: April 14, 1998
    Assignee: American Cast Iron Pipe Company
    Inventor: Jerry Thomas Mann
  • Patent number: 5433485
    Abstract: The syringe tip is connected to a syringe head by an assembly that permits quick detachment and replacement of syringe tips without the use of tools. In one embodiment the assembly is adjustable for permitting or restricting rotation of the syringe tip.
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: July 18, 1995
    Assignee: A-Dec, Inc.
    Inventors: George K. Austin, Jr., Ronald A. Rolleston, II, Mathew H. Parlier, Sandor Johannes
  • Patent number: 5433487
    Abstract: A wall penetration sleeve for extending a conduit or pipe through a solid concrete, brick or other wall or connecting a first pipe provided on one side of the wall with a second pipe provided on the opposite side of the wall. The wall penetration sleeve is characterized by a cylindrical sleeve extending through the wall and internally threaded on each end to receive a corresponding pressure nut. Each pressure nut seals an o-ring or gasket in the corresponding end of the sleeve to form a moisture-tight seal between the sleeve interior and the interior of the wall such that liquid or gas cannot leak from the sleeve and accumulate in the interior of the wall as the liquid or gas flows through the pipe. An annular lock collar is either eccentrically mounted on the sleeve or includes a flat segment shaped in the collar edge to prevent the sleeve from rotating or moving transversely in the wall.
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: July 18, 1995
    Inventors: Mark A. Kuhn, Shirley A. Kuhn
  • Patent number: 5370507
    Abstract: Chemical pumps are disclosed in which all parts wetted by the fluid being pumped are made of fluoroplastic material, with the pumps having check valves that include floating ball members and O-rings positioned adjacent to the floating ball members. The retainer area in which the O-ring is received has a diameter that is at least about 0.01 inch larger that the diameter of the O-ring so as to allow the O-ring to move slightly. The intake and discharge ports of the pumps comprise a bore extending into the body of the pump, with a threaded counterbore formed concentric with the bore to form a flat, annular surface between the bore and the counterbore at the inner end of the counterbore. A threaded fitting is received in the counterbore, and a seal is formed by compressing an O-ring against the annular surface at the inner end of the counterbore.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: December 6, 1994
    Assignee: Trebor Incorporated
    Inventors: Michael R. Dunn, Gregory D. Moss
  • Patent number: 5335946
    Abstract: A cooperating combination of a metallic gland and a metallic grip ring is for both plastic pipe and metallic pipe used in fluid piping systems, where these pipes are part of assembled restrained sealed bolted joints. The grip ring, in addition to two well spaced major sized teeth, has several spaced minor sized pipe gripping circumferential teeth located between and beyond the major sized teeth. The major sized teeth extend radially inwardly farther than the minor sized teeth within the grip ring. When the installed grip ring is restraining a metallic pipe, only the major size teeth are, in part, penetrating the metallic pipe. When this installed grip ring is restraining a plastic pipe both the major size teeth and the minor size teeth are penetrating the plastic pipe. The major size teeth take a lot of concentrated force, which is created when the fasteners of the bolted joint are tightened.
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: August 9, 1994
    Assignee: Romac Industries Inc.
    Inventors: Larry G. Dent, George F. Denison
  • Patent number: 5292156
    Abstract: A pipe coupling for the union of a corrugated pipe therewith is formed of a pipe coupling proper and a lock cylinder for fixing a corrugated pipe. The lock cylinder is helically joined to the inner surface of the leading part of the pipe coupling proper and fixes the corrugated pipe by rotationally closing the lock cylinder helically tacked to the pipe coupling proper, and at the same time seals the pipe coupling proper by pressing the leading terminal part of the lock cylinder against a seal ring attached fast to the interior of the pipe coupling proper, enabling the corrugated pipe to be infallibly locked and sealed owing to the provision of a spacer adapted to preset and keep a closing distance for the lock cylinder. The spacer is detachably attached to the periphery of the pipe coupling proper.
    Type: Grant
    Filed: September 11, 1992
    Date of Patent: March 8, 1994
    Assignee: Nitto Kohki Co., Ltd.
    Inventors: Takeya Sasa, Yoshikazu Kobayashi
  • Patent number: 5226678
    Abstract: A split gland having only three parts to obtain effective stability to relative motion of the constituent half-gland members. A large area clamping ring generates a clamping force effective to maintain the alignment between male and female mirror image half-gland members. Ease of manufacture and use result from the reduction in complexity of the present invention.
    Type: Grant
    Filed: August 31, 1989
    Date of Patent: July 13, 1993
    Inventor: Joseph J. Petranto
  • Patent number: 5141262
    Abstract: A means is disclosed by which the operational temperature of a sealed relatively rotating device may be achieved at lower than recommended operational temperatures for the elastomer compound used as the sealing material.
    Type: Grant
    Filed: April 4, 1991
    Date of Patent: August 25, 1992
    Assignee: Proprietary Technology, Inc.
    Inventor: Donald D. Bartholomew
  • Patent number: 5112089
    Abstract: The invention has for an object a connector with rapid high pressure fastening, including a female element (1, 32 or 48) united to a connector organ and a male element (14, 24 or 40) fixed to a connector tube (15), including an O-ring seal (21 or 43) and a locking means (13 or 53).According to the invention, the demountable locking means is composed of an elastic retaining ring (13) or a pin (53) retained by grooves (20, 25) and the toric openings (7, 23, or 31) or the apertures (46, 54) of the male and female elements.
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: May 12, 1992
    Assignees: Automobiles Peugeot, Automobiles Citroen
    Inventor: Denis Richard
  • Patent number: 5050246
    Abstract: A faucet extended nut for both anchoring a faucet to a sink and connecting the faucet to a water supply line under confined conditions. The nut includes an outer extended part adapted to be threadedly rotated on a faucet stem extending through an opening in the sink top to draw the faucet tightly against the upper side of the sink and an inner extended part adapted to be threadedly received within the outer part to force the end of a water supply line into sealing engagement with the stem. Each of the parts are of sufficient length to extend below the sink's bowl, and wrench engaging flats are defined on the lower end of the parts to apply torque to the parts without having to work in the confined area defined between the sink's bowl and the adjacent wall.
    Type: Grant
    Filed: March 30, 1990
    Date of Patent: September 24, 1991
    Inventor: Howard H. Huntoon
  • Patent number: 4930816
    Abstract: A joining structure for metal pipes to be applied in each passage hole of a pipe fitting. This structure can save time in pipe fitting work, and can reinforce the mutual joined condition of a pipe and a pipe fitting.
    Type: Grant
    Filed: May 17, 1989
    Date of Patent: June 5, 1990
    Inventor: Hwang Biing-Yih
  • Patent number: 4919461
    Abstract: A pressure cylinder, such as a master cylinder or wheel cylinder for an hydraulic vehicle braking system has a plastic molded body within which a threaded insert is engaged and restrained rotationally and axially. A seal is positioned within the body between surfaces of the insert and body. The insert provides a seat against which is clamped, in use, a corresponding seat on a flared end of a pipe, the letter being retained within the body by a pipe nut threadedly engaged with the insert. Long-term thread torque and clamping force are sustained by the insert rather than by the plastic body which can be subject to "creep".
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: April 24, 1990
    Assignee: Lucas Industries Public Limited Company
    Inventor: Desmond H. J. Reynolds
  • Patent number: 4911480
    Abstract: A well has an improved means for sealing an annular space within the bore of the wellhead housing surrounding the casing. An annular shoulder is stationarily located in the bore of the wellhead housing. A seal locates on top of the annular shoulder, the seal having a graphite material central section sandwiched between upper and lower metal rings. A cylindrical torque nut, having external threads which engage threads located in the bore of the wellhead housing, has a lower rim which engages the upper metal ring of the seal. The torque nut has a bore therethrough with at least one vertical groove formed therein for receiving a torque tool to rotate the torque nut for expanding the central section of the seal against the casing and wellhead housing to a selected amount.
    Type: Grant
    Filed: March 23, 1989
    Date of Patent: March 27, 1990
    Assignee: Vetco Gray Inc.
    Inventors: Charles D. Bridges, Anton J. Dach, Jr.
  • Patent number: 4886304
    Abstract: A rigid coupling for plain ended pipe includes radially inwardly movable wedging members of a hard but ductile material, which optionally may be in the form of a collet, and a member providing a camming surface corresponding with an external camming surface on each of the wedging members, the wedging members each having an axially straight inner surface for cooperation with the external axial surface of a pipe, the inner surface of the wedging members being coated with a grit material of a hardness greater than that of the pipe and that of the wedging members, for it to become matrixed within the respective surfaces on the application of compressive forces to the wedging members.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: December 12, 1989
    Assignee: Victaulic Company of America
    Inventor: Donald R. Kunsman
  • 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: 4836582
    Abstract: A fluid coupling (10) for an engine is described. The coupling includes a housing (21) threaded (22) for connection to the engine with a rotatable conduit means (11) which allows connection of flexible cooling fluid hoses in sealed connection with the housing. The housing can be turned into a corresponding threaded opening in the engine, particularly one located in a position which allows restricted rotational movement of the conduit means. This coupling is particularly adapted for use on heavy diesel engines, but could be adapted to any size engine, such as gasoline or diesel, for application in motor vehicles and the like.
    Type: Grant
    Filed: August 10, 1984
    Date of Patent: June 6, 1989
    Assignee: Barbara A. Krause
    Inventor: Thomas S. Krause, deceased
  • Patent number: 4826217
    Abstract: A joint between a pair of coaxial tubes which extend into a pressure vessel from a surface is sealed using a sleeve-like housing which surrounds the joint to be sealed. An upper fluid-tight seal is formed between the longer of the tubes and the housing. A lower fluid-tight seal is formed between the housing and the surface. An intermediate seal is also formed between the housing and the shorter tube. The upper and lower seals are independently preloaded through the use of spring washers. Primary loading of the lower seal to the surface is caused by fluid pressure in the vessel which acts on the housing.
    Type: Grant
    Filed: March 31, 1986
    Date of Patent: May 2, 1989
    Assignee: Combustion Engineering, Inc.
    Inventor: Hector N. Guerrero
  • Patent number: 4826219
    Abstract: A smooth bore, self-aligning connection for pipes of the type used in hydraulic dredging. In this connection, the spigot end of one pipe contacts metal to metal at the bell end of the other pipe. A packing gland is defined outwardly of the contacting pipe ends by a positioning ring toe and an annular ring of the bell. A third annular ring on the bell end engages a stepped ring on the spigot end to align the pipes longitudinally as well as radially. A locking ring which is threadedly adjustable engages a skirt depending from a fourth annular ring formed on the bell to lock the spigot end of the pipe to the bell end. The bell and spigot connection of this invention is also adaptable to a pontoon pipe having a flexible reinforced rubber hose section between the spigot and bell ends of a pipe.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: May 2, 1989
    Inventor: Norman P. Proehl
  • Patent number: 4793636
    Abstract: The inventive apparatus permits the connection of hoses to connecting pieces, which have a threaded, a ribbed, or a smooth end.The apparatus comprises three parts, namely the threaded part 1, the hose part 2 and the locking ring 3. The threaded part 1 always remains firmly connected to the connecting piece and thus shields its outer surface (particularly in the case of glass parts) against damage. The hose part 2 always remains connected to the hose. By brief turning, e.g., to the right, the two parts can be firmly connected by means of bosses 5 and slots 4 having mutually engageable serrations, but can be easily detached again by briefly turning in the opposite direction, e.g., to the left.Connecting pieces having non-threaded outer surfaces, i.e, with ribbed or smooth ends, can be fixed and sealed in the threaded part 1 by means of an O-ring or hose portion pressed between the locking ring 3 and the threaded part 1.
    Type: Grant
    Filed: December 15, 1986
    Date of Patent: December 27, 1988
    Inventor: Hermann W. Keck
  • Patent number: 4792160
    Abstract: An improved structure for a metal pipe fittings. Each passage hole of the body of a pipe fitting, such as an elbow, a tee, a cross etc., is provided with a female thread which a male-threaded ring screws in with tightly to press a metal ring and several gaskets abutting against one another around a pipe to be united. The tight screwing of said male-threaded ring in the female thread forces the gaskets to expand between the pipe and the body of the fitting keeping the pipe and the fitting tightly united.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: December 20, 1988
    Inventor: Biing-Yih Hwang
  • Patent number: 4776618
    Abstract: A high-pressure coupling for small-diameter pipe is obtained with standard male and female pipe connectors, three ferrules, an O-ring and a flat metallic washer disposed around the pipe and designed such that when the connectors are hand tightened, the coupling compresses the ferrules, O-ring and flat washer to obtain a coupling that will withstand pressures up to 10,000 psi.
    Type: Grant
    Filed: August 14, 1987
    Date of Patent: October 11, 1988
    Assignee: Marathon Oil Company
    Inventor: Robert D. Barree
  • Patent number: 4717160
    Abstract: A seal assembly for a shaft comprises one or more annular sealing elements having an initial internal diameter larger than the diameter of the shaft. The elements are deformed by a pair of annular backup rings disposed on opposite sides thereof. The backup rings have opposed axially extending undulations therein for effecting axial deformation and radial contraction of the sealing elements upon advancement of the backup rings toward one another.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: January 5, 1988
    Assignee: Microdot Inc.
    Inventors: Gordon T. Zitting, Jay T. Duke
  • Patent number: 4711311
    Abstract: An erosion and vibration resistant nozzle apparatus is disclosed for earth drilling rock bits. The nozzle includes a flow bean that is retained in a nozzle cavity by a threaded retainer, the retainer having at least one axially aligned slot therethrough to more fully engage the roots and crests of the retention threads to firmly secure the nozzle bean within its nozzle cavity. The split retainer may also have a conically shaped interior opening that conforms to a cone shaped exterior of the exit end of the nozzle bean for a more secure retention of the nozzle body within the nozzle cavity.
    Type: Grant
    Filed: November 20, 1986
    Date of Patent: December 8, 1987
    Assignee: Smith International, Inc.
    Inventors: Lance D. Underwood, Michael S. Oliver
  • Patent number: 4708513
    Abstract: An extended lift coupling for joining tubular members in an end-to-end relationship is disclosed. The coupling is of simple design having only three components: a pin, a box and a threaded lock ring. An external compressive axial preload places a torus on the pin in axial compression. Make-up of the lock ring maintains the compressive strain on the torus and the lock ring when the axial make-up force is removed. Thereafter, increased tensile loading on the pin and box is partially absorbed in benign compressive stress of the locking ring. By controlling the geometry of the coupling such that the stiffness of the torus is high compared to the stiffness of the box and the stiffness of the lock ring, the fatigue life of the coupling caused by applied cyclic tensile forces is enhanced.
    Type: Grant
    Filed: September 6, 1985
    Date of Patent: November 24, 1987
    Assignee: Hydril Company
    Inventors: Joseph R. Roche, Shaw-Wen Lin
  • Patent number: 4690436
    Abstract: A pipe coupling having an annular gasket deformed and compressed within a closed gasket chamber to form a seal for a pressurized hydraulic line, for example, one wall of the gasket chamber being formed by the outer surface of a pipe end portion which is to be connected either to a second pipe end portion or to a wall port. The axial width of the gasket chamber is determined by an abutment of the end face of the pipe end portion which transmits the abutment force to a threaded clamping sleeve or, as the case may be, to a coupling nut with the aid of a snap ring which engages a peripheral groove of the pipe end portion and a thrust shoulder of the threaded clamping sleeve. The pipe-to-pipe version of the coupling has two annular gaskets inside identical gasket chambers on opposite axial sides of a centering sleeve which surrounds both pipe end portions.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: September 1, 1987
    Inventor: Karl Hehl
  • Patent number: 4690437
    Abstract: The disclosed fitting connects a tubing end to a fluid conducting member which have a fluid port and end walls surrounding the port and a threaded portion surrounding the end wall. The fitting comprises a ferrule of resilient deformable material having a forward portion with a wide flat sealing surface which is adapted to mate with and sealingly engage the end wall surrounding the port. The ferrule has a throughbore with a diameter through its rearward portion being sufficient to receive the tubing end and the diameter through the forward portion being smaller than the tubing exterior thereby forming a tubing abutting shoulder within the ferrule. The ferrule is forced into sealing abuttment with the end wall of the fluid conducting member and into sealing engagement around the tubing by means of a fastener having a throughbore for receiving the tubing which is flared at its forward end to present conical walls for axially engaging the rearward end of the ferrule.
    Type: Grant
    Filed: February 27, 1986
    Date of Patent: September 1, 1987
    Assignee: Alltech Associates, Inc.
    Inventor: James M. Anderson, Jr.
  • Patent number: 4679824
    Abstract: In a fluid-tight coupling comprising a male fitting (1) having an axial channel (2) issuing to the outside via a radial opening (3) and forming the first section of the fluid line, said coupling requiring the male fitting to penetrate into a bore (6) in a mating part (5) containing the second section of said fluid line (4) issuing into the bore in line with the radial opening (3) when coupling is made and the male fitting (1) carrying two seals, located respectively above and below the radial opening, an improvement protects the seals against damage on insertion, wherein the upper seal (8) is secured between a conical shoulder (10) on the male fitting and a sliding ring (11) around the fitting, having a radial through-hole (17), the lower seal (9) is secured between same said ring and the conical top surface (12) of a sliding bushing (13) fitted over the end of the male fitting and the bore of the mating part has a shoulder (19) such that at the time of coupling the bushing (13) bumps said shoulder (19) and s
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: July 14, 1987
    Assignee: Alsthom
    Inventors: Francis Rodriguez, Jean-Paul Roblin
  • Patent number: 4667987
    Abstract: A device for connecting pipes with fittings or fixtures for mixing fluids for use in cleaning, washing and rinsing basins, sinks or the like wherein the fitting has a casing supported over an opening of the washing basin or the like by clamping means capable of being tightened against the underside of a washing table top or the like and water-conducting pipes extending through said opening, the pipes being constructed as connecting conduits capable of being plugged into the pipes and having a collar extending around the conduits at least near their ends to be plugged, and being secured in position by a molded part which can be supported on the casing of the fitting and a clamping device acting on said molded part, so as to be able to dispense with additional sealing elements within the zone of connection of the pipes, the pipes being composed of plastic material with thickened collars molded therearound and having toward the free end of the pipe a sealing surface capable of being clamped against a sealing sea
    Type: Grant
    Filed: January 9, 1986
    Date of Patent: May 26, 1987
    Assignee: Knebel & Rottger GmbH & Co.
    Inventor: Werner Knebel
  • Patent number: 4664425
    Abstract: The pipe (2) is inserted in the through-hole of the flange (1) and the pipe-flange seal is assured by a fixing ring nut (6) screwed into the upper portion (5) of the hole.The hole, in the part opposite the threaded area (5), has an area (4) with a diameter equal to that of the pipe (2) and a truncated-cone coupling area (4) between the two areas (5) and (7). A ring (8) of elastomeric material is inserted inside the truncated-cone portion (7) and an annular projection (9) on the pipe (2) acts thereon, pushed by the screwing action of the ring nut (6).
    Type: Grant
    Filed: June 11, 1986
    Date of Patent: May 12, 1987
    Assignee: Murray Europe S.p.A.
    Inventor: Alfredo D. Bona
  • Patent number: 4648634
    Abstract: A hose connection, particularly for use in motor vehicles, is proposed which ensures a gastight connection already with a low starting torque, is usable repeatedly and whose structural component parts are non-detachably held together in an assembly unit. Supported on the shoulder (7) of a stepped hose sleeve (1), which shoulder (7) is smaller in diameter, is a hollow screw (2) which, when the hose connection is assembled at a rigid duct body (15), presses together a sealing ring (3), which is arranged on the shoulder (8) and has a larger diameter, only until the sealing ring (3) abuts at the end face (22) between the shoulders (7) and (8) of the hose sleeve (1).
    Type: Grant
    Filed: June 5, 1985
    Date of Patent: March 10, 1987
    Assignee: Mannesmann Kienzle GmbH
    Inventor: Heinz Kelch
  • Patent number: 4621843
    Abstract: A ring seal and beaded tube type tube coupling has the annular bead defined by a rigid ferrule sealingly fixed to the tube with the ferrule including an annular flange forming the bead and having a shank portion extending axially outboard of the flange to thereby shorten, in effect, the unsupported length of the tube.
    Type: Grant
    Filed: October 23, 1985
    Date of Patent: November 11, 1986
    Assignee: General Motors Corporation
    Inventor: Robert D. Straub
  • Patent number: 4621841
    Abstract: A coupling between first and second tubular members comprising a flexible retaining ring fitted over the first tubular member below an annular enlargement thereof and entering into screw-threaded engagement with internal screw-threading on the second tubular member or a connector element attached thereto. The retaining ring is a split-ring member whose longitudinally extending slit enables it to be passed lengthwise over the first tubular member and is so dimensioned that on re-assuming its original form, the opposed margins of the slit abut and the retaining ring is held against the first tubular member against removal therefrom by the enlargement, and the second tubular member or connecting member is coupled to the first tubular member. A sealing member is positioned at the coupling to form a fluid-tight seal at the junction of the tubular members.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: November 11, 1986
    Assignee: Corning Limited
    Inventor: Douglas H. Wakefield
  • Patent number: 4614372
    Abstract: The device comprises a clamping jaw and a two-piece union nut. The clamping jaw is U-shaped in longitudinal section and straddles the end of the pipe so that it surrounds this pipe end from inside and from outside simultaneously. The two-piece union nut is composed of a first part and a second part which is inserted between the first part and the outer leg of the clamping jaw. The second part is provided with a left-hand external thread which meshes with a left-hand internal thread of the first part. Every location to be made tight within the device is sealed twice when the union nut is tightened, so that the connection is completely fluid-tight.
    Type: Grant
    Filed: April 12, 1985
    Date of Patent: September 30, 1986
    Assignee: Vestol SA.
    Inventor: Peter Gschwind
  • Patent number: 4553776
    Abstract: A small-diameter tubing connector and sealing apparatus for anchoring a tubing end in fluidtight engagement in high pressure service (up to 60,000 psi), said apparatus having four separate sealing areas.
    Type: Grant
    Filed: October 25, 1983
    Date of Patent: November 19, 1985
    Assignee: Shell Oil Company
    Inventor: Paul L. Dodd
  • Patent number: 4493497
    Abstract: A pipe connection assembly for connecting pipes transmitting a fluid as provided. A feature of this invention is the fact that it prevents any fluid escaping from the connection from traveling along the pipes and damaging any machinery that may be located along the pipes. The pipe connection assembly is comprised of first (or upper) and second (or lower) packing assemblies that radially surround the pipes. In certain embodiments, each of the packing assemblies is comprised of a top packing ring, a packing and a packing base ring, each packing being encased by the two complementary packing rings and the pipes when the packing assemblies are properly assembled. An opening is formed between the second top packing ring and the first packing base ring. The pipe assemblies are located with respect to the pipe interface such that any escaping fluid will contact the first packing assembly and the opening before contacting the second packing assembly.
    Type: Grant
    Filed: June 22, 1981
    Date of Patent: January 15, 1985
    Inventors: Bobby E. Smith, Benjamin V. Smith
  • Patent number: 4488741
    Abstract: A valve includes a molded plastic body portion having an internal chamber forming a valve seat having inlet and outlet openings. A plastic plug member is rotatably positioned in the valve seat and has a flow passage which in the open position of the valve communicates with the inlet and outlet openings. Pipe fittings of the valve body communicate with the valve seat and are aligned with the inlet and outlet openings. Each fitting is coupled to a conduit of a piping system by a nut threaded into the respective fitting to urge a wedge-shaped collar into frictional engagement with the conduit. The nut surrounds the collar which is advanced by the nut into the fitting until a radial shoulder on the nut abuts the end of the fitting so that the end of the nut in the fitting applies a controlled compressive force upon a gasket seal to effect a fluid tight connection of the conduit to the fitting.
    Type: Grant
    Filed: January 31, 1983
    Date of Patent: December 18, 1984
    Assignee: Kerotest Manufacturing Corp.
    Inventors: Richard W. Conley, Richard P. Tremblay
  • Patent number: 4488742
    Abstract: A connecting arrangement for connecting two hollow components of a hydraulic circuit to one another, especially a pipe or hose to a mating component, includes a guiding formation on one of the components, especially the mating component, and a mounting formation connected to the other component, these formations having correlated cross-sectional shapes such that the guiding formation guides the mounting formation in a predetermined direction, especially the longitudinal direction of the one component, and prevents relative displacement in all other directions. The mounting formation is advantageously constituted by a separate mounting element which is affixed to the other component by a threaded connection, such as by a screw cap. The formations advantageously have complementary dovetail-shaped cross-sectional configurations.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: December 18, 1984
    Assignee: ITT Industries, Inc.
    Inventors: Bernd Schopper, Peter Tandler, Derek Lowe