Between Serially Connected Parts Patents (Class 285/48)
  • Patent number: 10487645
    Abstract: A saver sub includes a hollow, tubular body having an upper portion and a lower portion. The upper portion is coupled to a kelly or a top drive, and the lower portion is coupled to a drill string. An insulation layer is positioned between the upper portion and the lower portion.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: November 26, 2019
    Inventors: Luis Eduardo DePavia, David Kirk Conn
  • Patent number: 9562534
    Abstract: The present pump devices provide a dual pump using two (or more) electric motors (e.g. brushless DC motors) driving the pumps independently, including integration of hydraulic and electrical components and connectors. The illustrated arrangements include an in-line single shaft version, a parallel side-by-side shaft version, and an inside-outside version. Each configuration includes a housing supporting formation of: shared structural support for the pumps and motors (e.g., bearings, stator, relationship of components), fluid pump and hydraulic system (e.g., fluid passageways, ports connectors) and motor electrical control (e.g., control circuitry and sensory components).
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: February 7, 2017
    Assignee: GHSP, Inc.
    Inventors: Ryan David Rosinski, Larry Duane Ridge, Jarvis Kirby, Cathy Ann Stewart, David Michael Mitteer
  • Publication number: 20150123394
    Abstract: The invention comprises dielectric isolators for use in aircraft fuel systems to control lightning induced current and allow dissipation of electrostatic charge. The dielectric isolators are configured to have a high enough impedance to limit lightning currents to low levels, but low enough impedance to allow electrostatic charge to dissipate without allowing buildup. Although the dielectric isolators may develop a potential difference across the dielectric length due to the effects of lightning currents and its inherent impedance, they are configured to withstand these induced voltages without dielectric breakdown or performance degradation. In one embodiment, the dielectric isolator includes a tube constructed of a composition including a thermoplastic organic polymer (e.g., PEEK) and carbon nanotubes, and a pair of fittings attached to opposing ends of the tube.
    Type: Application
    Filed: January 5, 2015
    Publication date: May 7, 2015
    Inventors: Clifton P. Breay, Sara D. Pfannenstiel, Stephen C. Matthews, Edward W.S. Bryant
  • Publication number: 20150084328
    Abstract: A compensator assembly, including a metal bellows (2) with a weld end or connecting end (3, 4) in each case on both sides, at least one single-part or multipart guide tube (11), two support rings (5, 6), of which one is connected to a weld end (3, 4) in each case, and an anchoring box (7), which is supported on end faces (5a, 6a) of the support rings (5, 6) facing away from the metal bellows (2), wherein the support rings (5, 6), on the end face (5a, 6a) facing away from the metal bellows (2), have support elements (16) projecting in a direction of the anchoring box (7), and/or the anchoring box (7), on an end face (8a, 9a) facing the respective support ring (5, 6), has support elements (16) projecting in a direction of the support ring (5, 6).
    Type: Application
    Filed: September 24, 2014
    Publication date: March 26, 2015
    Applicant: WITZENMANN GMBH
    Inventors: Andreas Kampfe, Bert Balmer, Peter Rittershofer, Frank Thome, Matthias Weber, Harald Betke
  • Publication number: 20150076811
    Abstract: An injector tube assembly that includes thin foil insulation around a receiver tube and a relatively rigid housing secured to the thin foil and bearing on tube insulation while also being packed with junction insulation.
    Type: Application
    Filed: August 25, 2014
    Publication date: March 19, 2015
    Inventors: Daniel Lehrbaum, Jason Drost
  • Publication number: 20140352832
    Abstract: In order to connect a connection piece (10), which is, for example, a pipe coupling or a mounting or a fitting, to a thermally insulated conduit pipe (1), a clamping sleeve (9) with an internal thread (8) is screwed in between the internal pipe (2) of the conduit pipe and the insulation layer (3) of said conduit pipe. A connection body (11) with a plug sleeve (13) is arranged in the internal pipe beforehand. The clamping sleeve (9) acts indirectly on the connection piece (10) by means of a retaining ring (14) in order to press said connection piece against the end face (5) of the internal pipe (2). In this way, the distance between the insulation layer (3) and the casing (4) of the conduit pipe is dispensed with and inaccuracies when cutting the conduit pipe to length can be compensated.
    Type: Application
    Filed: January 21, 2013
    Publication date: December 4, 2014
    Inventor: Werner Schaller
  • Publication number: 20140232104
    Abstract: A fitting for a heat pump having at least one heat exchanger includes a first fitting element configured for connection with a tubing portion of the heat exchanger and a second fitting element removably connectable to the first fitting element and configured for connection with a tubing portion of the heat exchanger. A non-conductive element is disposed between at least a portion of the first fitting element and at least a portion of the second fitting element such that, when connected, the non-conducting element deforms between the first fitting element and the second fitting element to electrically isolate the second fitting element from the first fitting element.
    Type: Application
    Filed: August 6, 2013
    Publication date: August 21, 2014
    Applicant: United States ThermoAmp Inc.
    Inventor: William P. Bernardi
  • Publication number: 20140232103
    Abstract: A method and apparatus for electrically separating two fluid lines across a structural boundary. Fluid is transported between a first channel through a first fluid line and a second channel through a second fluid line across the structural boundary formed by a structure. The first channel and the second channel are connected by a channel formed by a fitting. The fitting is comprised of a first component, a second component, and an isolator. The first fluid line and the second fluid line are electrically separated using the isolator in the fitting.
    Type: Application
    Filed: February 18, 2013
    Publication date: August 21, 2014
    Inventor: The Boeing Company
  • Publication number: 20140049036
    Abstract: A gap sub comprises at least one, and in a preferred embodiment, two electrically isolating threaded joints in a conductive tubular collar. The threads of the joints are isolated by a non-conductive coating in accordance with the prior art. The shoulders of the joints are separated by an isolating ring. Annular faces on the ring make contact with the shoulders in the joints. The ring is made of conductive material with a non-conductive coating deployed on (1) at least one, and advantageously both, of the ring's annular faces, and (2) the interior surface of the ring. An annular recess in the collar prevents electrical contact between collar sections nearby the ring either side of each threaded joint.
    Type: Application
    Filed: April 8, 2013
    Publication date: February 20, 2014
    Applicant: Sharewell Energy Services, LLC
    Inventors: Mark Miller, Craig MacDonald, Michael Doan
  • Patent number: 8635864
    Abstract: An exhaust gas purifying device includes a first case housing a soot filter for purifying exhaust gas, second and third cases that are respectively placed on an upstream side and a downstream side of the first case in an exhaust gas flowing direction, and a differential pressure sensor that detects pressure difference between the upstream side and the downstream side of the soot filter. Pipes are respectively attached to the first case and one of the second and third cases placed on the upstream side or the downstream side of the first case, the pipes introducing pressures inside the first case and the one of the second and third cases to the differential pressure sensor.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: January 28, 2014
    Assignee: Komatsu Ltd.
    Inventor: Hiroshi Yamamoto
  • Patent number: 8622094
    Abstract: A method for protecting a welded pipe assembly from metal dusting and a welded pipe assembly suitable for performing the method. The welded pipe assembly comprises two pipes, weld material joining the two pipes and insulating material. The pipes are protected from metal dusting by a protective coating. The present invention is useful for conveying gases comprising carbon monoxide at temperatures greater than 425° C. while preventing metal dusting of the welded piping assembly.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: January 7, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Larry Thomas Dorsch, William Robert Licht, David R. Kerstetter
  • Publication number: 20130327888
    Abstract: A method and apparatus for conducting an electrical current between a first transport member and a second transport member. In one illustrative embodiment, a coupling assembly comprises a first fitting associated with a first end of a first transport member, a second fitting associated with a second end of a second transport member, and a seal. The seal is configured for placement around the first fitting and the second fitting when the first end of the first transport member is positioned relative to the second end of the second transport member. The seal is further configured to seal an interface between the first transport member and the second transport member. The seal is comprised of a material configured such that the seal has a level of conductivity within a selected range and such that a conductive pathway is formed between the first transport member and the second transport member.
    Type: Application
    Filed: January 23, 2013
    Publication date: December 12, 2013
    Inventors: Kevin O'Brien Gaw, Nathan Michael Kelley, John Thomas Axtell, James Patrick Irwin, David William Minteer, Diego A. Velasco
  • Publication number: 20130241194
    Abstract: Disclosed is a system for assembling a weldless HVAC system which can utilize aluminum tubing. The system is made of Y connectors, tubing connectors, and sections of tubing connecting a refrigerant source with distributed cooling units. Weldless Joints are made on the job site from standard components by threading and pressing units together.
    Type: Application
    Filed: August 12, 2011
    Publication date: September 19, 2013
    Inventors: Bart Petterson, Jon Shipman
  • Patent number: 8474875
    Abstract: A wired drill pipe electronic device includes a housing having a threaded connection at each end configured to couple to a wired drill pipe having double shoulder threaded connections. A chassis is disposed inside the housing and is configured to define at least one sealed atmospheric chamber between the chassis and the housing. The chassis defines an internal passage therethrough. The device includes a stress coupling to enable transmission of at least one of axial and torque loading from both the inner and outer shoulder of adjacent wired drill pipe segments through the housing.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: July 2, 2013
    Assignee: Intelliserv, LLC
    Inventors: Michael O. Ross, Michael C. Sakach
  • Publication number: 20130076018
    Abstract: A dielectric fitting (10, 10?, 110) assembly includes a hose (14, 114) connected between two end fittings (12, 121, 112), and a structural reinforcement portion having at least an inner layer (26, 26?,126) formed of a first composite material having a high strength and a second composite material having a high electrical resistance. The first and second composite materials cover the assembly and provide a smooth transition of radial stiffness as the inner layer transitions from a high strength portion to a high electrically resistant portion.
    Type: Application
    Filed: May 3, 2011
    Publication date: March 28, 2013
    Inventors: Carsten Heinrich Mueller, Mark James Fahey
  • Publication number: 20120133123
    Abstract: A contamination resistant connecting system includes, a first conduit, a first connector in operable communication with the first conduit, a first seal configured to seal at least part of the first connector from an environment, a second conduit operationally connectable with the first conduit, a second connector in operable communication with the second conduit that is operationally connectable with the first connector and a second seal configured to seal at least part of the second connector from an environment. Additionally, at least one piercing device is configured to pierce through the first seal and the second seal to allow operational connection of the first conduit with the second conduit.
    Type: Application
    Filed: November 30, 2010
    Publication date: May 31, 2012
    Inventors: Carl W. Stoesz, Luis E. Mendez
  • Patent number: 8171613
    Abstract: An electrically-insulative threaded connection includes a pin member having a pin thread and a box member having a box thread. An insulating composite layer is disposed between the pin thread and the box thread. The insulating composite layer includes an insulating fiber and insulating resin. The pin thread and the box thread are wedge threads. A method of making an electrically-insulative threaded connection includes forming a pin wedge thread on a pin member and winding a filament over the pin wedge thread. The filament is wetted with a resin, thereby forming a composite layer. The composite layer is cured and machined to mate with a box wedge thread.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: May 8, 2012
    Assignee: Hydril Company
    Inventor: Harris A. Reynolds, Jr.
  • Patent number: 8061739
    Abstract: A thermal insulation device of a screwed junction between two sections of pipe comprising an outer pipe surrounding an inner pipe between which thermal insulation material is positioned, the inner pipes being assembled together by the screwed junction, one section delimiting a male portion and the other delimiting a female portion, the portions being fitted together to delimit the screwed junction, wherein the male portion comprises the inner pipe and a tubular part connected thereto, the diameter of the tubular part being less than that of the outer pipe, and wherein the female portion comprises a part of the outer pipe and an intermediate tubular part connecting the inner pipe to the outer pipe, the inner diameter of the intermediate part being greater than the outer diameter of the tubular part of the male portion, the thermally insulating material being inserted between the outer pipe and the intermediate part.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: November 22, 2011
    Assignee: Majus
    Inventor: Philippe Marchal
  • Publication number: 20110036557
    Abstract: A gap sub assembly can be used to form an electrical isolation in a drill string, across which a voltage is applied to generate a carrier signal for an electromagnetic (EM) telemetry system. The assembly comprises two conductive generally cylindrical components fashioned with a matching set of male and female rounded coarse threads, held such that a relatively uniform interstitial space is formed in the overlap space between them. The third component is a substantially dielectric electrical isolator component placed into the gap between the threads that effectively electrically isolates the two conductive components. Injecting the dielectric material under high pressure forms a tight bond resistant to the ingress of conductive drilling fluids (liquids, gases or foam), thus forming a high pressure insulating seal.
    Type: Application
    Filed: October 25, 2010
    Publication date: February 17, 2011
    Applicant: Schlumberger Technology Corporation
    Inventors: Paul L. Camwell, Derek W. Logan, David D. Whalen, Thomas H. Vermeeren, Anthony R. Dopf
  • Publication number: 20100253451
    Abstract: An electrolytic corrosion prevention structure at a flange connection part in which the occurrence of an electrolytic corrosion is suppressed without increasing the number of the airtight and/or watertight parts and that can be easily processed is provided. a pair of pipe members 21 and 22, which has flanges 21a and 22a at the end of pipes and which has a groove surrounding the end of the pipe formed between the flanges 21a and 22a by jointing the flanges 21a and 22a; an annular seal member 23 which places in an outer circumference of the joint part of the flanges21 a and 22a in the groove: and an interposition member 24 which places in an outer circumference of the seal member23; wherein the electric potential difference which occurs when either material of the pair of pipe members 21 and 22 and the material of the interposition member 24 are contacted, smaller than the electric potential difference when the materials of the pair of pipe member 21 and 22 are contact with each other.
    Type: Application
    Filed: November 27, 2008
    Publication date: October 7, 2010
    Inventor: Naotsugu Watanabe
  • Publication number: 20100178860
    Abstract: A vent pipe and system formed from such vent pipes is provided. The vent pipe includes an inner casing, an outer casing surrounding the inner casing, and an insulation material between the inner and outer casings. The vent pipe also includes, a male end portion, a female and portion for receiving a male end portion end of another vent pipe, the female end portion being opposite the male end portion. The vent pipe further includes a first flange extending from the male end portion, and a second flange extending from the female end portion for mating with the first external extending from the male portion of another vent pipe.
    Type: Application
    Filed: October 29, 2009
    Publication date: July 15, 2010
    Inventor: ERIC BRUNETTE
  • Patent number: 7744134
    Abstract: A connector assembly is used in connecting one duct section to another, at least one of the duct sections being an insulated duct. The assembly comprises a plurality of first elements, and a plurality of second elements, each first element including attachment means for attachment of an end face of a duct section thereto, and, in use, at least one second element engages with two first elements.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: June 29, 2010
    Assignee: Doby Cleats Limited
    Inventor: Terence Raymond Dingley
  • Patent number: 7686344
    Abstract: An electrical insulation system for a linear element forming part of a fluid system subjected to risks of possible external electrical discharges, such as an aircraft fuel system, using an insulating insert (12) between two parts (14, 16) of said linear element, consisting of providing said parts (14, 16) with grooved edges and in forming the insulating insert (12) between them preferably by an injection technique, such that the insulating insert (12) provides an inner duct for the passage of fluid between said parts (14, 16) and covers said grooved edges, assuring the leak-tight joint of the insulating insert (12) with said parts (14, 16).
    Type: Grant
    Filed: September 5, 2006
    Date of Patent: March 30, 2010
    Assignee: Airbus Espana, S.L.
    Inventor: Jesús Fernández Vieira
  • Patent number: 7578315
    Abstract: A compound pipe for conveying fluid comprising an inner pipe positioned within an outer pipe such that the walls of the inner pipe and outer pipe define a gap. The compound pipe further including an insulating material for insulating the inner pipe from the outer pipe, the insulating material and outer pipe defining a fluid channel.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: August 25, 2009
    Assignee: Doosan Babcock Energy Limited
    Inventor: Alexander Bruce Wilson
  • Publication number: 20080169643
    Abstract: A dielectric tubular fitting for dissipating electrical energy, while providing fluid flow therethrough, the fitting including a non-metallic reinforced hose extending between and fluidly interconnecting spaced metallic tubes, and a means within the hose for providing controlled electrical resistance to dissipate positive charge of fluid flowing through the fitting. A dielectric cover is provided surrounding and encapsulating the hose, and at least partially encapsulating each of the tubes.
    Type: Application
    Filed: August 29, 2007
    Publication date: July 17, 2008
    Inventors: Joseph Marban, Jeff Lowell
  • Patent number: 7344161
    Abstract: An insert for use in connecting two lengths of pipe, each having a plastic liner. The insert consists of an inner tubular member of plastics material for connection at either end to the plastic liners of two pipe lengths, an insulating sleeve surrounding a central portion of the inner tubular member and a ring of heat-resistant material overlying a part of the insulating sleeve to be positioned, when in use, beneath a location at which the pipe length is butt welded, wherein the insulating sleeve includes an insulating material which is at least partially enclosed with a sheath, such that the sheath can be mechanically connected to the interior of one pipe length.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: March 18, 2008
    Assignees: Technip France SA, Technip Offshore UK Limited
    Inventors: Brett Patrick Howard, Gordon Tough
  • Patent number: 7207603
    Abstract: A tubular assembly 10 is disclosed for passing fluids within a hydrocarbon recovery well. The tubular assembly 10 has an insulated connection 12 between insulated tubing segments 14, 16. Tubing segments 14, 16 are connected via a threaded connection, and the resulting joint 10 is insulated by an external insulating sleeve 18. The insulating sleeve 18 may have unitary construction, such that the sleeve 18 may only be installed or removed by first breaking apart the joint 10. Alternatively, the sleeve 18 may comprise a plurality of arcuate partial-sleeves, which may be assembled about or removed from the completed joint 10 without first breaking apart the joint 10.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: April 24, 2007
    Assignee: Grant Prideco, L.P.
    Inventor: Salvador Segreto
  • Patent number: 7066495
    Abstract: A flexible bellows tube connecting pipes in a system such as a vehicle exhaust system. Various embodiments are disclosed, with each including two conduit sections having mating corrugations that overlap to provide a seal while allowing the two sections to rotate in response to torsion loading. Different configurations of the interfitting corrugations and related structure are disclosed in the different embodiments.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: June 27, 2006
    Assignee: Tru-Flex Metal Hose Corp.
    Inventors: R. Winfield Thomas, Scott R. Swank
  • Publication number: 20040145178
    Abstract: The present invention is generally directed to a method and apparatus for filling pipeline joints. In one illustrative embodiment, a pipeline is provided that is comprised of a layer of mesh material positioned around a gap defined by weight coating material positioned around each of first and second sections of pipe, the layer of mesh material having a plurality of openings formed therein, and a fill material positioned in the gap and extending into the openings in the layer of mesh material. In another illustrative embodiment, a method of filling a joint in a weight coated pipeline is provided. The method comprises positioning a layer of mesh material having a plurality of openings formed therein around the joint, positioning a removable mold around the layer of mesh material, introducing a fill material into the joint through at least one opening in the removable mold, and removing the mold.
    Type: Application
    Filed: January 24, 2003
    Publication date: July 29, 2004
    Inventor: Thomas A. Ball
  • Patent number: 6572152
    Abstract: In a subassembly electrical isolation connector for interconnecting sections of a tubular drill rod, the subassembly having an electrically insulated connector for and between spaced-apart connector sections to transmit drilling forces therethrough, the use of a sealing membrane for sealing an insulated spacing in the electrically insulated connector to prevent ingress of pressurized drilling mud into the connector and shorting out said spaced-apart sections of the connector, the sealing membrane overlapping said connector sections as a continuous sleeve and having at least its sleeve ends sealed to respective portions of the connector sections to thereby activate the sealing membrane.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: June 3, 2003
    Assignee: Ryan Energy Technologies Inc.
    Inventors: Anthony Robert Dopf, Paul L. Camwell, Michael T. Sutherland
  • Patent number: 6443499
    Abstract: The present invention provides an apparatus for pre-conditioned air (PCA) hoses and an assembly for a plurality of PCA hoses. The present invention further provides a method of assembling a plurality of PCA hoses. A hose in the assembly has an outer vinyl layer and further an insulative layer and an inner antibacterial layer. Hook and loop fasteners are employed to provide a way for attaching and securing junctions between hoses in the assembly, where two ends are butted together to form one of the junctions. The two ends each have a first portion of the hook and loop fastener attached substantially about the circumference of the hose. An elongated member having a second portion of the hook and loop fastener is attached at one of the ends where it is effective for wrapping about the circumference of the hoses thereby connecting and covering the butted junction between hoses.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: September 3, 2002
    Assignee: Quadro Corporation
    Inventor: Wayne Jenum
  • Publication number: 20020113432
    Abstract: In a subassembly electrical isolation connector for interconnecting sections of a tubular drill rod, said subassembly having an electrically insulated connector for and between spaced-apart connector sections to transmit drilling forces therethrough,
    Type: Application
    Filed: December 21, 2000
    Publication date: August 22, 2002
    Inventors: Anthony Robert Dopf, Paul L. Camwell, Michael T. Sutherland
  • Patent number: 6349976
    Abstract: A pipe in pipe assembly. A coupling is used to join the ends of the inner pipe. The inner pipe is centralized within the inner pipe to provide axial resistance but minimum restraint transverse to the axis of the assembly. This provides sufficient flexibility of the inner pipe to accommodate the necessary tolerances to permit the use of the coupling. The inner pipe may be centralized within the outer pipe by the use of foam injected between the inner and outer pipe and a corrugated web sleeve around the ends of the inner pipe. The inner pipe may also be centralized within the outer pipe by the use of a corrugated web bulkhead that fits around the inner pipe and within the outer pipe.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: February 26, 2002
    Assignee: Mentor Subsea Technology Services, Inc.
    Inventor: Leland Harris Taylor, Jr.
  • Patent number: 6299214
    Abstract: An annular isolator is provided having a metal tube which acts as a spring while defining a flow path and a resilient member located between two loading plates. The resilient member supports the weight of one of the members being coupled and the tube acts as spring as to transmitting vibration.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: October 9, 2001
    Assignee: Carrier Corporation
    Inventors: Wen L. Li, Mark A. Daniels, Patrick C. Marks, Shau-Tak R. Chou
  • Patent number: 6158532
    Abstract: A subassembly electrical isolation connector for interconnecting adjacent tubular drill rods of a drilling system used in drilling bore holes in earth formations electrically isolates the inner connection of the drill rods. The connector comprises a housing, a mandrel, a connector for connecting the housing to a first tubular drill rod, a connector for connecting a mandrel to a second tubular drill rod and a device for interconnecting the housing and the mandrel in a manner to electrically isolate the housing from the mandrel with the housing overlapping at least a portion of the mandrel. The housing has an isolated end which is electrically isolated from the mandrel and the connector for connecting the mandrel to a second tubular drill rod. Such arrangement provides enhanced strength to resist bending moments along the connector and resisting drilling forces.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: December 12, 2000
    Assignee: Ryan Energy Technologies, Inc.
    Inventors: Derek W. Logan, Anthony Robert Dopf, Paul L. Camwell
  • Patent number: 6098727
    Abstract: An electrically insulating gap subassembly for inclusion in a pipe string (30) comprising a pair of tubular members (90, 98) having an electrically insulating isolation subassembly (94) threadably disposed therebetween is disclosed. The electrically insulating isolation subassembly (94) has an anodized aluminum surface that provides electrical isolation to interrupt electrical contact between the two tubular members (90, 98) such that electromagnetic waves (46, 54) carrying information may be generated thereacross.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: August 8, 2000
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Paul D. Ringgenberg, Harrison C. Smith
  • Patent number: 6070911
    Abstract: A clamp-type isolating pipe joint is disclosed, which can connect pipes by providing insulation between them, is easy to assemble and disassemble, has high reliability and allows easy replacement of parts and is inexpensive to manufacture and install. The joint comprises hubs weldable to connectable pipes, a seal ring interposed between butted surfaces of the hubs and a clamp disposed around the circumferences of the hubs for clamping itself with bolts in the radial direction of the hubs to be fixed as insulated from each other. The clamp and hubs are insulated by interposing between them a metal plate with an insulating resin coat formed thereon. Insulation layers are also provided between the seal ring and the hubs.
    Type: Grant
    Filed: March 1, 1999
    Date of Patent: June 6, 2000
    Assignee: JGC Corporation
    Inventors: Yasuo Namikawa, Toshikazu Nakamura, Keizo Hosoya, Muneyasu Ichimura
  • Patent number: 6050353
    Abstract: A subassembly electrical isolation connector for interconnecting adjacent tubular drill rods of a drilling system used in drilling bore holes in earth formations electrically isolates the inner connection of the drill rods. The connector comprises a housing, a mandrel, a connector for connecting the housing to a first tubular drill rod, a connector for connecting a mandrel to a second tubular drill rod and a device for interconnecting the housing and the mandrel in a manner to electrically isolate the housing from the mandrel with the housing overlapping at least a portion of the mandrel. The housing has an isolated end which is electrically isolated from the mandrel and the connector for connecting the mandrel to a second tubular drill rod. The mandrel has a conical tapered body portion which is located within the housing and the housing has a corresponding conical tapered inner surface. The conical taper for the housing and the mandrel converge inwardly away from the housing isolated end.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: April 18, 2000
    Assignee: Ryan Energy Technologies, Inc.
    Inventors: Derek W. Logan, Anthony Robert Dopf, Paul L. Camwell
  • Patent number: 5749605
    Abstract: An insulative threaded connection is provided for metal tubulars to be placed in wells or for other metal pipe. The connection contains a coating of plastic having a selected thickness which is applied to the surface of the threads of a tubular to be mated with another joint of tubular. The plastic contains particles at a selected loading such that the particles support load between the mated threaded joints. Metal is removed from the mating threads, the thickness of the metal removed being about the same as the thickness of the plastic coating. The coating may be applied to the pin end or the box end of connections. The box end may be a coupling or an integral threaded area. The insulative threaded connection is used in tubulars for improved transmission of electromagnetic signals to or from wells.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: May 12, 1998
    Assignee: Protechnics International, Inc.
    Inventors: John T. Hampton, III, William F. Trainor, Thomas R. Bandy
  • Patent number: 5664809
    Abstract: A connector assembly principally for aviation fuel lines and pipes in which a connector body is conductive whilst a mounting flange is non-conductive. The body and flange are secured together during a moulding stage. The body generally has earthing lugs embedded in its surface to dissipate electrical static charge.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: September 9, 1997
    Inventor: James I. Bates
  • Patent number: 5645285
    Abstract: A locking insert 4 for joining the male and female ends of spheroidal-graphite cast-iron pipes conveying fluids under pressure has a generally planar shape, and includes at least two metal parts 4A, 4B fixed to each other by an electrically insulating junction layer 4C.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: July 8, 1997
    Assignee: Pont-A-Mousson S.A.
    Inventors: Alain Percebois, Daniel Auproux, Philippe Renard
  • Patent number: 5471342
    Abstract: In a fiber-optic amplifier, which consists of at least one pump coupler (2) with a pumping light source (1) and an erbium-doped fiber length (7) which is spliced to the pump coupler (2), at least one detector is located in the splice area (12) between the fiber length (7) and the outgoing transmission line, to monitor the amplifier by measuring the scattered light coming from this splice area (12). An electrical evaluating device follows the detector.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: November 28, 1995
    Assignee: Alcatel N.V.
    Inventors: Bernhard Junginger, Rainer Fritschi, Heinz Krimmel
  • Patent number: 5333913
    Abstract: Galvanic isolation between two fluid-conducting members made of dissimilar materials is provided by a coupling pipe that separates the two members (e.g. a pipe and a valve). The coupling pipe includes a tubular section and two flange sections, which mate with the two fluid-conducting members. An insulating liner on the inside diameter of the tubular and flange sections of the coupling device extends the entire length of coupling pipe and is coextensive with flange insulators that separate the coupling pipe from the two fluid-conducting members. The substantial separation distance provided by the coupling pipe with continuous insulation prevents or significantly reduces electrochemical corrosion.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: August 2, 1994
    Assignee: Newport News Shipbuilding and Dry Dock Company
    Inventor: Clinton W. Stallard, III
  • Patent number: 5232315
    Abstract: An adapter (10) is useful to prevent formation of a static electrical change on an outlet valve (V) during discharge of lading from a railcar on which the valve is installed. A unitary member (12) has an inlet end (14) formed for attachment to the outlet valve, and an outlet end (16) formed for connection with a hose (H) into which discharged lading flows. A passage (28) is formed in the member and extends from the inlet end to the outlet end. The passageway is of an irregular shape at the inlet end of the adaptor. It is of a generally circular shape at its outlet end. The member is formed of an electrically non-conductive, resilient material so that it prevents the build-up of any static electrical charge as lading flows through the member.
    Type: Grant
    Filed: June 17, 1992
    Date of Patent: August 3, 1993
    Assignee: ACE Industries, Incorporated
    Inventor: Richard H. Dugge
  • Patent number: 5200015
    Abstract: A process for joining variously shaped vacuum heat insulating elements having edges adapted to be butted against each other or to overlap each other. A bellows is tightly connected with each vacuum heat insulating element in the area of its edges, the free edge of the bellows projecting beyond the element. The heat insulating elements are positioned such that the edges of the bellows rest against one another in an aligned manner or overlap, and the bellows are tightly connected with one another. The heat insulating elements are then moved against one another until their edges rest against one another or overlap, and are tightly connected with one another. The gap at the joint formed between the heat insulating elements and the bellows is evacuated and closed off tightly.
    Type: Grant
    Filed: April 29, 1991
    Date of Patent: April 6, 1993
    Assignee: Messerschmitt-Bolkow-Blohm GmbH
    Inventor: Lothar Schilf
  • Patent number: 4776600
    Abstract: This invention discloses a dielectric pipe flange gasket having the dual functions of providing a leak proof seal for the pipe flange joint and an electrically insulating barrier between flanges, which dielectric pipe flange gasket comprises a planar annular disc member of corrosion resisting metal sandwiched between two hard dielectric planar members respectively bonded to two faces thereof and a pair of ring seals made of dielectric elastomer respectively disposed in two annular seal grooves respectively included in two faces of the pipe flange gasket, wherein the depth of the grooves partially extend into the metallic planar annular disc member.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: October 11, 1988
    Assignee: Pikotek, Inc.
    Inventor: Gary A. Kohn
  • Patent number: 4674773
    Abstract: An insulating coupling for drill collars and a method of manufacture thereof are presented wherein the coupling consists of an electrically insulating ceramic coating applied in thickness from 0.002 to 0.006 inch to the threads of the coupling by a detonation gun process and sealed with an epoxy sealer to reduce porosity.
    Type: Grant
    Filed: November 19, 1985
    Date of Patent: June 23, 1987
    Assignee: Teleco Oilfield Services Inc.
    Inventors: Frederick A. Stone, Robert J. Maron
  • Patent number: 4668303
    Abstract: A novel bellows expansion joint design and method of preventing stress corrosion cracking incorporates an internal cylindrical weir or sleeve which defines an inner flushing chamber adjacent the expansion bellows wherein connections are provided on the exterior wall of the expansion joint body to allow the admission of a chemical solution or treating fluid directly onto the inside surface of the bellows from an external connection to the expansion joint. In addition, a further connection is provided to a second flushing chamber surrounding the exterior of the bellows so that a similar solution may be admitted and allowed to overflow from an upper portion of the chamber.
    Type: Grant
    Filed: November 25, 1985
    Date of Patent: May 26, 1987
    Assignee: Exxon Research and Engineering Company
    Inventor: Paul S. Weber
  • Patent number: 4635967
    Abstract: An insulated casing assembly for use in injecting steam into wells or transmitting steam from the generating source to the wellhead is disclosed. A plurality of interconnected casings are used, each casing have outer and inner tubular sections and an annular spacing between the two sections containing thermal insulation. Rigid weld rings connect and prevent relative movement between the corresponding ends of the two sections. A thermal and fluid sealing ring disposed between adjacent inner tubular section prevents ingress of steam into the coupling cavity. A threaded coupling screwed onto threaded ends of outer tubular sections joins adjacent casings together.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: January 13, 1987
    Assignee: Kawasaki Thermal Systems, Inc.
    Inventor: Edgar O. Stephenson
  • Patent number: 4624484
    Abstract: There is described an insulating connector for the wellhead of an electrode well used for heating a subsurface formation by electrical power dissipation in the formation. The insulating connector has two iron base metal fittings (for example, steel flange halves) heat shrink fitted to a piece of ceramic pipe with a nonferrous second metal between the outer surface of the ceramic and the inner surface of the metal fittings. The nonferrous metal (for example, copper) has a lower yield than steel and a higher thermal expansion coefficient than the iron base metal and deforms, compensates and distributes the stresses caused in the shrink fitted members by the differences expansion between steel and ceramics.
    Type: Grant
    Filed: June 13, 1984
    Date of Patent: November 25, 1986
    Assignee: Atlantic Richfield Company
    Inventor: Robert Wilson