With External Pressure Supply Patents (Class 285/96)
  • Patent number: 9353952
    Abstract: A crossfire tube assembly between adjacent combustors includes a first sleeve adapted to provide fluid communication from a first combustor and a second sleeve adapted to connect to provide fluid communication from a second combustor. The second sleeve extends at least partially inside the first sleeve. A bias is between the first and second sleeves.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: May 31, 2016
    Inventors: Brandon Taylor Overby, Keith Cletus Belsom, Jonathan Kay Allen, Kyle Eric Benson, Patrick Benedict Melton, Richard Martin DiCintio, Lucas John Stoia, Ronnie Ray Pentecost
  • Patent number: 9291023
    Abstract: A casing head assembly for landing on a stem head of a floating structure can include a stem head adapter assembly that includes a ring shaped stem head adapter plate. A solid upper ring is spaced axially above the stem head adapter plate, defining an adapter gap between the upper ring and the stem head adapter plate. At least one load cell can have a first end that is supported by the stem head adapter plate and a second end that engages the upper ring. At least one piston assembly is selectively secured to the upper ring. The casing head assembly also includes a casing head landed on, and secured to, the upper ring of the stem head adapter assembly. The load cell is selectively constrained between the upper ring and the stem head adapter plate by a load on the casing head.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: March 22, 2016
    Assignee: GE Oil & Gas Pressure Control LP
    Inventors: Mark Anthony McGilvray, Jr., Alfred Olvera, Gajanan B. Hegde, Keith M. Adams
  • Patent number: 9217526
    Abstract: A method and apparatus are disclosed for testing the integrity of a portion of flexible pipe body. The method includes the steps of, via at least one port in an end fitting assembly in which an end of a portion of flexible pipe body is terminated, monitoring at least one parameter associated with an annulus region disposed between layers of the flexible pipe body, the annulus region being connected to the port by a connecting passageway.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: December 22, 2015
    Assignee: GE Oil & Gas UK Limited
    Inventor: Tony Eccleston
  • Publication number: 20150084330
    Abstract: A seal (100) for connecting to a tube (110) having a wall, the seal comprising: •an elongated cavity (130) for receiving an end of the tube (110); •a first elastic ring (140) in the cavity (130); and •a fluid inlet (150) for radially pressing the first elastic ring (140) against the wall of the tube (110) inserted in the cavity (130).
    Type: Application
    Filed: May 7, 2013
    Publication date: March 26, 2015
    Inventors: Vladimir Sizikov, Viktor Dubovsky
  • Patent number: 8408295
    Abstract: A testing method for connectors usable with oil or natural gas wells using a test part connector and a control component connector. The method uses a test fluid in a test reservoir that is pumped to each connector simultaneously, uses a test part pressure transducer and a control component pressure transducer to create a test response and a control response. The responses are then transmitted as compared results to a user.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: April 2, 2013
    Assignee: Petro Technologies, Inc.
    Inventor: David Levy
  • Patent number: 8408603
    Abstract: A coupling device for a sealed coupling of first and second pipe sections, which are movable with respect to one another and at the ends of which respective flanges are fastened to be mutually sealed. The end face of the second flange, which is directed toward the first flange, includes an annular groove and a sealing element is disposed within the annular groove. The annular groove is configured to be subjected to pressure so as to press the sealing element against the end face of the first flange. The sealing element is a sealing ring made of elastic material.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: April 2, 2013
    Assignee: Belimed GmbH
    Inventor: Jürgen Althammer
  • Patent number: 8333409
    Abstract: A threaded joint comprises a pin coupled to a box with an annular groove, one or a pair of seal rings, and hydraulic actuating means to pressurize the seal ring or rings against the pin to provide sealability of the joint. The seal ring or rings comprise a frustoconical surface, an external surface, and an internal surface with one or more protruding annular ribs. In the unpressurized state, the seal ring or rings do not protrude from the groove. In the pressurized state, the frustoconical surface of the sealing ring is in sealing contact with an internal surface of the annular groove of the box, and the annular ribs of the sealing ring are in sealing contact with the external surface of the pin.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: December 18, 2012
    Assignee: Tenaris Connections Limited
    Inventors: Nestor J. Santi, Gastón Mazzaferro, Alfredo Quiroga
  • Patent number: 8272444
    Abstract: The method of providing flotation modules on subsea drilling riser joints comprising providing flotation modules as a full circle, installing said flotation modules sequentially onto the end of the central pipe of said drilling riser joints in a desired orientation, providing passageways through said flotation modules which extend from one end of said subsea drilling riser joints to the other end of said drilling riser joints.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: September 25, 2012
    Inventor: Benton Frederick Baugh
  • Publication number: 20120032435
    Abstract: A threaded joint comprises a coupling, a first pin, and a second pin, wherein the thread of the first pin has a pitch different from the pitch of the thread of the second pin. The extremities of the pins have slanted contact surfaces of complementary shape that make mutual contact after make-up of the joint. The slanted common plane of contact of both pins has an angle to the plane perpendicular to the longitudinal axis of the joint which is greater than 0°. In an alternative embodiment the contact surfaces of the pins are split into two staggered planes and comprise a seal in-between.
    Type: Application
    Filed: April 22, 2010
    Publication date: February 9, 2012
    Inventors: Gabriel E. Carcagno, Alfredo Francisco Quiroga
  • Patent number: 8083266
    Abstract: A gas riser apparatus, and methods for making and using a gas riser apparatus, utilize a swivel-nut having an annular collar section thereof which includes a radially outwardly opening annular groove therein adapted for swaged/crimped attachment to the remainder of the riser, at an above-ground end of the riser. For risers including a rigid metallic pipe section, the above-ground end of the pipe may be configured for swaged/crimped attachment to the annular collar of the swivel-nut through application of radially inwardly directed pressure on the above-ground end of the rigid riser pipe. For risers not having a rigid metallic section, a swage/crimp collar may be utilized for forming a connection between a flexible metal conduit and the swivel-nut, through application of radially inwardly directed pressure applied to the swage/crimp collar while the collar is disposed about the above-ground end of the flexible metal conduit.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: December 27, 2011
    Assignee: Chicago Fittings Corporation
    Inventors: Joseph A. Tarquini, Kevin J. Belousek
  • Patent number: 8037933
    Abstract: An externally testable redundant seal connector for a well comprising a connector body and a ferrule disposed on an end of the connector body. The ferrule is adapted for forming a primary seal between an outer diameter of the connector body and a profile in a mandrel. A sealing groove can be formed on the outer diameter of the connector body. A sealing device can be disposed in the sealing groove. A conduit can be formed in the connector body parallel to but disconnected from the thru-bore. Ports can be disposed in the connector body for receiving fluid and introducing fluid to at least one conduit. A plug can be insertable in each port upon completion of testing wherein each plug forms a secondary seal between the connector and the mandrel.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: October 18, 2011
    Assignee: PetroTechnologies, Inc.
    Inventor: David Levy
  • Patent number: 7887101
    Abstract: A joint for connecting two tubes. The joint includes a first tube that provides a ball interface at its end. The joint also includes a second tube that provides a cup interface inside its wall. The cup interface of the second tube and the ball interface of the first tube form a cup-ball interface. This cup-ball interface is located in the interior of the second tube.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: February 15, 2011
    Assignee: A.S.M. International N.V
    Inventor: Christianus Gerardus Maria De Ridder
  • Patent number: 7874771
    Abstract: The invention provides an improved seal structure of cutting fluid supplied to a spindle of a milling spindle. The milling spindle 100 comprises a spindle 20 supported within a housing via a bearing 16, and a drawbar 24 having a through coolant passage 22. The cutting fluid C1 passing through the rotary joint 40 and 50 is sent to the through coolant passage 22, but a portion thereof is collected in a drain chamber 105. A rotation member 110 is attached to a rear end portion of the spindle 20, which is equipped with a labyrinth device 150 having a lip seal member 152. An air supply member 120 has two air seal members 142 and 144, and air A1 is sent toward the labyrinth device 150, by which an air seal is formed.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: January 25, 2011
    Assignee: Yamazaki Mazak Corporation
    Inventors: Hiroki Ikuta, Hiroki Tazawa, Yoshikuni Ohta, Jojiro Kimura
  • Patent number: 7648177
    Abstract: An apparatus that facilitates tight sealing between a first space and a second space. The second space is at least partially enclosed by a member. The apparatus includes or performs creating or maintaining a pressure difference between a pressure in a third space at a seal assembly and pressure in each of the first space and the second space; and pushing, caused by the pressure difference, against a seal in the seal assembly to tighten sealing provided by the seal.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: January 19, 2010
    Assignee: Atomate Corporation
    Inventors: Thomas W. Tombler, Jr., Brian Y. Lim, Jon W. Lai
  • Publication number: 20090159291
    Abstract: A method and apparatus for determining and reacting to an upper packer failure in a riser slip joint. An upper packer failure is determined by comparing pressures at two points in the upper packer pressure circuit using a differential pressure valve. In the event of a failure of the upper packer, a secondary pressure source is used to energize a lower packer in the riser slip joint.
    Type: Application
    Filed: December 22, 2008
    Publication date: June 25, 2009
    Inventor: Bradley Ray Rodger
  • Patent number: 7549678
    Abstract: Systems for actuating a pair of pipe flanges to cause the flanges to be sealingly engaged. In one embodiment, a connection includes a first flange, a second flange and a coupling. The first and second flanges have complementary mating surfaces. The coupling engages both the first and second flanges, with the flanges oriented so that their mating surfaces face each other. The coupling movably engages the first flange to form a cavity between the coupling and the flange. When fluid is forced into the cavity, expansion of the cavity moves the first mating surface toward the second mating surface. This is continued until the mating surfaces make contact and a desired amount of pressure is applied between them to create a seal. The pressure of the fluid is distributed evenly through the cavity, so the contact pressure between the mating surfaces of the flanges is also evenly distributed.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: June 23, 2009
    Assignee: Taper-Lok Corporation
    Inventors: Erik M. Howard, Charles Armbrust
  • Patent number: 7478838
    Abstract: A fitting for sealing against the inner surface of an inlet includes an elongate mandrel and one or more resilient bushings supported on the mandrel. The fitting has a first condition wherein the resilient bushing can be received within the inlet. The fitting can be actuated to a second condition the resilient bushing expands radially to sealingly engage the inner surface of the inlet. When the inlet is sealingly engaged by the resilient bushing in the second condition, fluid may be admitted to the inlet through an axial bore in the mandrel. When the fitting is used to fill a pipe system, fluid supplied to the inlet may be pressurized to facilitate monitoring the pipe system for leaks. The fitting may include a sealing member configured to seal against a terminal end of the inlet when the bushing is radially expanded to seal against the inner surface of the inlet in the second condition.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: January 20, 2009
    Assignee: Cincinnati Test Systems, Inc.
    Inventors: Jeffrey W. McBee, Dennis Stutz
  • Patent number: 7438325
    Abstract: A rotating passage feed system for admitting pressure means into two machine parts (hub part (2), shaft (3)) which rotate relative to one another about a common axis. Conduits (17) that convey the pressure means are located in the shaft (3) and are joined to pressure means connections (6) via tapped holes while a connecting part (5) in which ring channels (8) are provided is also joined thereto. A central sleeve (9) is joined to the connecting part (5) in a non-rotatable manner. The connecting part (5) and the central sleeve (9) are produced in an inexpensive manner as lightweight structure formed from sheet metal through a shaping process.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: October 21, 2008
    Assignee: Schaeffler KG
    Inventors: Umberto Rocca, Norbert Metten
  • Patent number: 7434843
    Abstract: In the preferred embodiments, a hollow shaft rotary fluid joint assembly includes: (a) a hollow shaft through which electrical cables are passed; (b) a rotary fluid joint surrounding an outer diameter of the hollow shaft through which a fluid medium is passed, the rotary fluid joint including inner and outer races defining an interior chamber that are rotatably connected together and that include one or more respective inlet or outlet port.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: October 14, 2008
    Assignee: Northrop Grumman Corporation
    Inventors: Zakhar Pishnov, Henry E. Reinhardt, Anthony N. Fischetti
  • Patent number: 7255372
    Abstract: Relative and controlled sealing between a pipe (1) and a ceramic tube (7) utilizes a cylindrical chamber (5) that is attached in a sealed manner to the pipe (1), and to one end of the ceramic tube that is placed inside the chamber. At least two sets of sealing fixtures (3, 3?) are placed in an annular space between the ceramic tube and the chamber. A crosspiece (4) is interposed between the two sets sealing of fixtures (3, 3?). A metal mating flange (6) is pressed against a compression ring (4?) to compress the sealing fixtures (3, 3?). Injection of a fluid (8) between the two sets of sealing fixtures (3, 3?) applies a pressure differential that is determined on each of the fixtures.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: August 14, 2007
    Assignee: Institute Francais Du Petrole
    Inventors: Stéphane Bertholin, Luc Nougier, Michel Cohen
  • Patent number: 7118137
    Abstract: A locking ring-type pipe joint has a spigot ring provided on a first pipe section, a bell ring provided on a second pipe section, and a locking ring that may be contracted to engage the spigot ring to the bell ring. First and second circumferential grooves formed in the spigot ring are configured to receive a test gasket and a pipe seal gasket respectively. An annular test space between the gaskets is in closed connection with a pressure port, whereby the pressure seal of the pipe seal gasket may be evaluated after the pipe sections are joined and prior to activating the joint restraint feature, installing the next pipe, and back-filling the pipe sections.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: October 10, 2006
    Assignee: Price Brothers Company
    Inventor: Richard E. Deremiah
  • Patent number: 7063356
    Abstract: A pipe coupling (10) for joining together the ends of two adjacent pipes includes a housing (12) which defines a generally central bore (13) along a central axis of the housing for receiving the ends of the two adjacent pipes, and a locking arrangement (14) at each end of the housing (12) for locking the pipes to the coupling. Each locking arrangement (14) includes an annular chamber (23) within the housing, an inlet for allowing fluid into the chamber, an outlet for allowing fluid out of the chamber, and an annular seal (24) which is arranged to move within the annular chamber axially of the housing. A locking ring (26) is provided between the annular seal (24) and a plurality of radially movable grippers (30) for locking the grippers to a pipe end within the housing.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: June 20, 2006
    Assignee: Amidex Coupling Systems (PTY) Ltd.
    Inventor: Malcolm Thomas Barker
  • Patent number: 6722664
    Abstract: A high pressure seal consists of a minimal convex excess which induces a plastic-elastic deformation on the flat opposing surface. The excess can also be formed by means of a ring with a circular cross section which after tightening of the screw coupling likewise forms a small convex excess. Removal of the ring without damage is accomplished by application of pressure by means of a smaller additional groove and a pressure feeding bore discharging into the additional groove.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: April 20, 2004
    Inventor: Horst Kleibrink
  • Patent number: 6499768
    Abstract: A joint assembly for connecting two ceramic material tubes has a cup-ball interface. One of the tubes has at a first end a cup shaped member, and the other tube has at a first end a ball shaped member adapted to be received in the cup shaped member. The ball shaped member and the cup shaped member define the cup-ball interface. The cup shaped member is provided with a gas feed channel discharging at a first end into an annular groove at the cup-ball interface. At the other end, the cup shaped member is connected to a conduit outside the cup shaped member. The conduit is connected to an inert gas source having a pressure above atmospheric pressure.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: December 31, 2002
    Assignee: ASM International N.V.
    Inventors: Christianus Gerardus Maria De Ridder, Pieter Johannes Quintus Van Voorst Vader
  • Publication number: 20020180208
    Abstract: Joint assembly for connecting two ceramic material tubes. One of the tubes is provided with a cup and the other tube with a ball to be received in said cup. To prevent atmospheric gases entering at the joint of the cup and ball inert gas in introduced at super atmospheric pressure at the innerface between cup and ball.
    Type: Application
    Filed: May 30, 2001
    Publication date: December 5, 2002
    Inventors: Christianus Gerardus Maria De Ridder, Pieter Johannes Quintus Van Voorst Vader
  • Patent number: 6485062
    Abstract: A multi-channel rotary joint comprising-elastic seal rings each having an annular groove that are used to form a low-pressure channel space and a high-pressure channel space between the opposing peripheral surfaces of a joint housing and a rotator that rotates inside the joint housing. Seal rings that seal the low-pressure channel space which forms part of a vacuum suction route are engaged with and supported by one of the opposing peripheral surfaces such that annular grooves are disposed symmetrically and opening into spaces adjacent to the low-pressure channel space. The seal rings that seal the high-pressure channel space which forms part of a pressurized fluid supply route are engaged with and supported by one of the opposing peripheral surfaces such that the annular grooves are disposed symmetrically and opening into this high-pressure channel space.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: November 26, 2002
    Assignee: Nippon Pillar Packing Co., Ltd.
    Inventors: Junji Omiya, Nobuhito Hirakawa, Isao Tanaka, Yusuke Kamon
  • Patent number: 6447018
    Abstract: A connector for a plain end pipe comprising a housing (7) for location over the pipe, an annular recess (4) formed in an inner surface of the housing (7), a seal (1) located in the recess (4), a nipple (8) for the supply of grease under pressure, and segmental grippers of L-shaped cross section comprising a leg (6) and a foot (5) having a serrated inner surface for engagement with the pipe. Such connectors have wide tolerance within a certain range of nominal pipe outside diameter.
    Type: Grant
    Filed: January 21, 2000
    Date of Patent: September 10, 2002
    Assignee: Gloway International, Inc.
    Inventor: Daniel Graham Ball
  • Patent number: 6412823
    Abstract: A rotating connector for the transfer of at least one pressurized process fluid, and comprising a central stem (2) on which there is placed a number of ring elements (3, 4) comprising at least one annulus element (3) for fluid transfer between an associated course (8) in the stem (2) and an outlet (9) from the connector, and a bearing ring element (4) arranged on each side of the annulus element (3) and sealed there-against by dynamic seals (14) operated by means of a barrier liquid having a higher pressure than the process fluid pressure, and a looking nut (21) to keep the ring elements (3, 4) preloaded against a shoulder (20) on the stem (2).
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: July 2, 2002
    Assignee: Den norske stats Oljeselskap a.s.
    Inventor: Jens Ødegaard
  • Patent number: 6412821
    Abstract: A device for connecting two bodies, especially a quartz body and a metallic body, which assures with few and simply formed components a high sealing ability at high temperature differences and at very low pressures and makes possible an easy assembly and disassembly. The device for the vacuum-tight connecting of two bodies of different materials, each of which has an essentially tubular end section (20, 30) and in the connected state of which the tubular end section (30) of the first body surrounds at least partially the end section (20) of the second body, includes an intermediate conduit (13) for intermediate suction removal of gases and is formed between the tubular end sections (20, 30) of the bodies with two seals (100, 150) which seal off the intermediate conduit (130).
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: July 2, 2002
    Assignee: Unaxis Balzers Aktiengesellschaft
    Inventors: Winfried Schulmann, Helmut Kaiser, Udo Wenske
  • Patent number: 6257628
    Abstract: The invention relates to a coupling device for a tube comprising a sleeve part having at least one insert end for the tube and a sealing part suitable to provide a seal around the tube inserted into the sleeve part. The sealing organ comprises a plurality of substantially identical, slidably abutting elements which form part of a substantially closed ring. The elements increase radially in thickness. Furthermore pressure means are provided for pressing the elements against the tube.
    Type: Grant
    Filed: January 28, 1997
    Date of Patent: July 10, 2001
    Assignee: Georg Rischer Waga N.V.
    Inventor: Dries Nijsen
  • Patent number: 6080134
    Abstract: A low profile parenchymal bolt having a cap, a body, and a base with two rods located through the cap that the base. Levers are located at the cap and are interconnected with the rods. Moving the levers outwardly pulls the rods and base towards the cap compressing the body and causing its outer diameter to increase into contact with an opening in the skull of a patient to form a fluid-tight seal and fixing the bolt in position. A lumen permits mounting an instrument through the bolt and when the body is compressed, the lumen reduces in size thus clamping the instrument in place in the bolt and forming a fluid-tight seal. Through use of non-ferric materials, artifacts in MRI are reduced.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: June 27, 2000
    Assignee: Camino NeuroCare, Inc.
    Inventors: Richard A. Lotti, Greig E. Altieri
  • Patent number: 5924743
    Abstract: The invention concerns a device adapted to be fixed and sealed to at least one cylindrical member (1, 1'), characterized in that it includes:a first sleeve (2),a second sleeve (3) coaxial with the first sleeve (2) having a greater capacity for deformation than the first sleeve (2) and fixed and sealed to the first sleeve (2) at both ends,at least two cylindrical rings (4, 5) coaxial with the second sleeve (3), pressed against the latter and each fixed by one edge to one end of the second sleeve (3), andmeans (6, 6') for injecting a pressurized fluid between the first sleeve (2) and the second sleeve (3).
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: July 20, 1999
    Assignees: Gec Alsthom Stein Industrie, Central Nuclearie Europeene, Electricite De France
    Inventors: Michel Bonmartin, Bruno Veyrat, Yann Wolff, Christian Bonnand
  • Patent number: 5911447
    Abstract: A pipe connector for attachment to a plain end pipe includes a housing (2) for location over the pipe end, an annular recess (4) formed in the inner surface of the housing, an inlet (10) for feeding a fluid under pressure into the recess, a sealing ring (6) in the recess, having at least three arcuate gripper elements (14) bonded thereto, the gripper elements having aligned recesses at the radially inward surfaces in which an O-ring seal (16) is mounted. After a pipe end is placed within the housing, fluid is pumped into the annular space (8) between the housing and seal ring (6), which pushes the seal ring and attached gripper elements radially inwardly to engage the pipe, the O-ring seal (16) forming a tight seal against the pipe. The plurality of gripper elements can conform to a pipe which is not perfectly round.
    Type: Grant
    Filed: March 20, 1996
    Date of Patent: June 15, 1999
    Inventor: Daniel Graham Ball
  • Patent number: 5895077
    Abstract: A swivel device comprising inner and outer mutually rotatable swivel members having respective inner fluid paths communicating with each other through one or more associated annular spaces at the interface between the swivel members. The annular spaces being sealed from each other by seals. The swivel members are formed as an outer female member and an inner male member so that the male member can be introduced axially into the cooperating female member to an operative working position, or withdrawn from the female member when disconnecting the swivel members. The seals between the annular spaces are arranged to be activated for active sealing in the operative working position, and to be relieved in case of manual disconnection of the swivel members.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: April 20, 1999
    Assignee: Den Norske Stats Oljeselskap A.S
    Inventor: Martin Sigmundstad
  • Patent number: 5746453
    Abstract: An inline pipeline expansion joint is provided having a first sleeve with the outer end adaptable to attach to a pipe. A second sleeve also has an outer end adaptable to attach the attachment of a pipe, the inner end of the first sleeve being co-axially and telescopically received within the second sleeve. A seal is interposed between the interior of the first sleeve and the exterior of the second sleeve. A tubular liner is positioned within the second sleeve, one end of the liner being telescopically received within the interior of the first sleeve to thereby reduce turbulence of fluid flow through the expansion joint. The first sleeve has an external annular circumferential flange with openings therethrough that receive circumferentially spaced alignment rods that are secured at one end to the second sleeve so that as the first sleeve moves telescopically with respect to the second sleeve, the two sleeves are prevented from rotating with respect to each other.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: May 5, 1998
    Assignee: ERC Industries, Inc.
    Inventor: Allen L. Roberts
  • Patent number: 5718458
    Abstract: A connector arranged for high pressure fluid carrying conduits comprises a central core having at least one fluid passage such as an integral bore, formed therein and an outer member surrounding the central core and being moveable relative thereto. The outer member comprising at least one segment having a fluid flow conduit and sealing means for the connector junction comprising an intermediate member, at least one static seal for non-moveable surfaces and at least one dynamic seal for relatively moveable surface.A plurality of segments may be stacked on top of each other and held together by the application of a compression force on shoulders of the segments.A relative rotational capability is preserved for the parts of the connector yet a more reliable and versatile connector is achieved in which the modular construction allows a variety of sizes to be offered more easily and cheaply and engineering tolerances can be more easily be met than with a single piece construction.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: February 17, 1998
    Assignee: Framo Engineering AS
    Inventor: Jostein Erstad
  • Patent number: 5702130
    Abstract: An evaporative cooling system externally mounted around an air cooled condenser to increase the rate of heat transfer. Spray cooling takes place in stages around succeeding portions of the condenser as determined by thermostats which respond to increasing condenser air discharge temperature.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: December 30, 1997
    Assignee: Framo Engineering AS
    Inventor: Erstad Jostein
  • Patent number: 5595405
    Abstract: Method for increasing the distance between two faces, inserting into a space between the two faces a diaphragm power jack, the shape of which being adapted to the shape of the space, the diaphragm power jack comprising two abutting sheets being sealingly bonded along the entire circumference, a pipe penetrating the bonded, injecting a pressurized fluid through the pipe to the interface between the two sheets thereby forcing the sheets apart whereby substantially all the energy from the pressurized fluid being converted to forces perpendicularly to the sheets.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: January 21, 1997
    Assignee: OBS Technology A/S
    Inventor: Hans Knutsen
  • Patent number: 5456501
    Abstract: A pipeline connector apparatus comprising piston actuated means for gripping and sealing a pipe comprising a cylinder having an inner surface, the cylinder having a first groove for receiving a spring biased ring, a piston movable in the cylinder and actuating one of the gripping and sealing means, the piston having a second groove holding a spring biased ring. A plurality of compressible and relaxable spring biased rings are provided, each having an outer surface and a radius such that each will compress within the second groove and will expand within the first groove. The outer surfaces of the different rings have shoulders of different widths which allows the operator to control the piston stroke in the cylinder. The apparatus further comprises a means for predetermining and/or monitoring the displacement of the pistons.
    Type: Grant
    Filed: August 25, 1993
    Date of Patent: October 10, 1995
    Assignee: Oceaneering, Inc.
    Inventor: James R. Reaux
  • Patent number: 5433482
    Abstract: A pipeline connector and repair system for sealingly connecting the ends of first and second pipes together without welding or bolting. First and second connectors are provided at each end of a pipe joint and are inserted between the ends of the first and second pipes to be connected, the connectors are extended outwardly for enclosing the ends of the first and second pipes, and dual slip means and dual seal means in each of the connectors are hydraulically set for making the repair.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: July 18, 1995
    Assignee: Oceaneering International, Inc.
    Inventor: Alfred R. Baddour
  • Patent number: 5421621
    Abstract: A slip-type expansion joint including a body portion for connection to a pipe or conduit and having an inner annular recess for receiving packing rings and injectable packing material and the joint further including a slip portion for connection to another pipe or conduit and guidedly received in the body portion for limited axial movement therein to accommodate limited axial movement of the pipes or conduits, the packing rings providing the main sealing function of the joint and the packing material exerting force on the packing rings to maintain the sealing function thereof, the expansion joint characterized by a plurality of ports around the body in communication with the annular recess for introducing the packing material to the recess and a manifold arrangement extending around the body and connected to the ports for supplying packing material to all of the ports from one location on the manifold arrangement so that packing material can be supplied readily to all of the ports even if some locations aroun
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: June 6, 1995
    Assignee: Adsco Manufacturing Company
    Inventor: David A. Schaefer
  • Patent number: 5382058
    Abstract: A rotatable flange union for use with vacuum systems includes a first flange, a second flange and a connector which connects the first flange to the second flange and allows the first flange to rotate 360 degrees with respect to the second flange. In the preferred embodiment, tubing of the first flange is placed within tubing of the second flange. Additionally, the connector includes a first quad ring seal, a second quad ring seal, and a cavity in the second flange. The first quad ring seal is in contact with an inner diameter of the second flange and is in contact with an outer diameter of the first flange. The second quad ring seal is in contact with the inner diameter of the second flange and is in contact with the outer diameter of the first flange. The cavity is between the first quad ring seal and the second quad ring seal. The cavity is pumped to a pressure of less than ten millitorr.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: January 17, 1995
    Assignee: VLSI Technology, Inc.
    Inventor: David E. Henderson
  • Patent number: 5343798
    Abstract: A connection apparatus for connection with an inside of a fluid conduit including seal member, sleeve member and collet assembly to seal and grip the fluid conduit which is in fluid communication with a fluid passageway. The connection apparatus further includes a resilient member and a control valve to cause actuating and deactuating relative movement between the collet assembly and the sleeve member so as to grip and seal the inside of the fluid conduit.
    Type: Grant
    Filed: September 15, 1992
    Date of Patent: September 6, 1994
    Assignee: FasTest Inc.
    Inventors: Stanlee W. Meisinger, Mark D. Medved
  • Patent number: 5180008
    Abstract: A wellhead seal for establishing and maintaining a seal between a wellhead and inner pipe element. The seal is an annular elastomeric body having an inner axial surface with a generally convex central portion for pressing against the inner pipe element surrounded by the wellhead and an outer axial surface with a generally concave central portion which, in one embodiment, receives an annular energizing element to increase the sealing force between the body and casing. An annular anti-extrusion ring is provided at the inner edge of each radial end surface.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: January 19, 1993
    Assignee: FMC Corporation
    Inventors: Tod Aldridge, John A. Fitzgerald, Allan K. McGregor, Ronald D. Quates, Rudolf R. Schoen, Appavoo Thangarasu, John C. Vicic
  • Patent number: 5133561
    Abstract: A sealing device of this invention is designed to prevent entering of the open air through a coupling of a process tube of a CVD apparatus. The sealing device includes a first flange having a mirror-finished face, a second flange having a face which is brought into contact with the face of the first flange, at least one gas guide which is open to at least one of the faces of the first and second flanges and an evacuation system for evacuating a region, in which the first and second flanges are brought into contact with each other, through the gas guide.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: July 28, 1992
    Assignees: Tokyo Electron Limited, Tokyo Electron Sagami Limited, Kishikawa Special Valve Co., Ltd.
    Inventors: Hisashi Hattori, Teruo Iwata, Hiroshi Sekizuka, Yoichi Kawauchi, Hisao Fujisawa
  • Patent number: 5133577
    Abstract: A refractory pipeline having ceramic pipe sections with joints therebetween located at areas where in which there are the greatest temperature differences in the pipeline. Adjacent pipe sections are connected together by shoulders at the ends of each such section, the shoulder of one pipe section being radially outside the shoulder of an adjacent section. A further pipe section is pushed over the joint so as to form a gastight seal by defining a space in communication with a borehole through the one shoulder and a peripheral groove in the other shoulder. A pressure cushion is provided in the space by applying a barrier medium under pressure to the space and thereby through the borehole to the peripheral groove.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: July 28, 1992
    Assignee: Vereinigte Aluminium-Werke Aktiengesellschaft
    Inventors: Werner Schultze, Stefan Schindler
  • Patent number: 5098132
    Abstract: An improved length compensating joint suitable for use in repairing pipelines includes an inner tubular member, an outer tubular member which receives the inner member in close fitting engagement, seals disposed radially and axially between the inner and outer members define annular piston areas for providing selective relative motion between the inner and outer members, a pressure responsive locking piston with a camming surface for urging gripping elements into locking engagement with the inner member, a metal-to-metal seal between the inner and outer members which can be deenergized during extension or retraction operations and a test port for verifying the integrity of the metal-to-metal seal after installation. Additionally, a second embodiment provides an alternative metal-to-metal seal configuration which can also be deenergized during extension and retraction operations.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: March 24, 1992
    Assignee: Cooper Industries, Inc.
    Inventor: James A. Burton
  • Patent number: 5042846
    Abstract: A system for maintaining a tightness between two parts rotatable relative to each other. The system includes at least two sealing units, with each of the sealing units having at least two possible states or conditions, namely, a first state or condition for ensuring a tightness between the two parts and a second state or condition wherein it does not ensure a tightness. Each sealing unit is deformable and includes a drive arrangement for intermittently actuating each of the sealing units.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: August 27, 1991
    Assignee: Technip-Geoproduction
    Inventor: Guy R. Delamare
  • Patent number: 5026074
    Abstract: The improved annular seal of the present invention provides a seal across an annular space between facing cylindrical surfaces and includes an outer annular ring, inner annular ring, the gap between the outer annular ring and the inner annular ring being suitably sealed at one end thereof so that the open end is open to admit pressure which is to be sealed between the two rings, an outer sealing element on the exterior of said outer annular ring, and an inner sealing element on the interior of the inner annular ring so that pressure exerted between the annular rings urges them apart and their sealing elements against the surfaces of the annular space. In another form of the invention three annular rings are provided with one end of the inner and outer rings being sealing to the end of the intermediate ring and with sealing elements on the exterior of the outer ring and on the interior of the inner ring so that the sealing elements are urged into sealing engagement with the surfaces of the annular space.
    Type: Grant
    Filed: September 20, 1990
    Date of Patent: June 25, 1991
    Assignee: Cooper Industries, Inc.
    Inventors: Larry M. Hoes, Joseph H. Hynes
  • Patent number: 4955641
    Abstract: For use in underground sealed liquid distribution systems, embodiments of pipe seals are used to seal between various components used, such as pipes to manholes, pipes to reservoirs, pipes to pipes, repair couplings to pipes, couplings to corrugated pipe and between corrugated pipes, and tee connections to sewer pipes. In each embodiment of a pipe seal, a circumferential seal is initially substantially inserted in a circular receiving volume of a circular positioner. In some embodiments of these pipe seals, each circular positioner has two circular receiving volumes, each one receiving a circumferential seal.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: September 11, 1990
    Inventor: Larry G. Dent