Patents Assigned to Hydril Company
  • Publication number: 20180340378
    Abstract: A threaded connection includes a pin member having an external wedge thread increasing in width in a first direction, a box member having an internal wedge thread increasing in width in a second direction so that complementary internal and external wedge threads move into engagement upon make-up of the connection, a box thread stop at an end of the internal wedge thread of the box member, and a pin thread stop at an end of the external wedge thread of the pin member, wherein the pin and box thread stops are configured to contact when the connection is fully engaged.
    Type: Application
    Filed: August 1, 2018
    Publication date: November 29, 2018
    Applicant: Hydril Company
    Inventor: Doug R. Enderle
  • Publication number: 20180223606
    Abstract: A tubular connection comprising a longitudinal axis, a pin member comprising a distal pin end, a tapered pin thread having a constant pin taper angle ?1 with respect to the longitudinal axis, and a pin sealing surface located between the pin thread and the distal pin end, and a box member comprising a distal box end, a box sealing surface, and a tapered box thread having a constant box taper angle ?1 with respect to the longitudinal axis and located between the box sealing surface and the distal box end, and wherein the pin thread is configured to cooperate by make up with the box thread along a cooperating area, while having a radial thread interference between the pin thread and the box thread along at least part of the cooperating area, the pin sealing surface and the box sealing surface are configured to contact each other upon make-up in a sealing manner while forming a metal to metal seal, and the pin taper angle ?1 is larger than the box taper angle ?1.
    Type: Application
    Filed: August 5, 2016
    Publication date: August 9, 2018
    Applicant: Hydril Company
    Inventor: David Mutis Rueda
  • Patent number: 9052041
    Abstract: A tubular connection includes a pin member having external wedge threads configured to engage a box member having corresponding internal wedge threads, and a solid lubricant coating applied on at least one of the internal and external wedge threads wherein the solid lubricant coating comprises a first uniform layer of a dry corrosion inhibiting coating made of an epoxy resin containing particles of zinc and a second uniform layer of a dry lubricant coating covering the first uniform layer.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: June 9, 2015
    Assignee: Hydril Company
    Inventors: David Llewellyn Mallis, Andrea L. Reade-Romero
  • Patent number: 8984734
    Abstract: A threaded connection includes a pin member comprising a first pin step and a second pin step, and pin wedge threads disposed on each of the first and second pin steps and a box member comprising a first box step and a second box step, and box wedge threads disposed on each of the first and second box steps, wherein an axial separation of the first and second pin steps differs from an axial separation of the first and second box steps.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: March 24, 2015
    Assignee: Hydril Company
    Inventors: David Llewellyn Mallis, Gary Wayne Ward
  • Patent number: 8668233
    Abstract: A threaded connection including a pin member and a box member, and methods for manufacturing and forming said threaded connection. The pin member has a pin thread with a pin thread crest, a pin thread root, a pin load flank, and a pin stab flank. The box member has a box thread with a box thread crest, a box thread root, a box load flank, and a box stab flank. At least one of the pin thread crest, the pin load flank, the pin stab flank, the box thread crest, the box load flank, and the box stab flank has at least one perturbation formed thereon. Upon a selected make-up of the pin member with the box member, a reduced clearance gap exists between the pin thread and the box thread at the at least one perturbation.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: March 11, 2014
    Assignee: Hydril Company
    Inventors: David Llewellyn Mallis, Harris A. Reynolds, Jr.
  • Publication number: 20130219686
    Abstract: A threaded connection includes a pin member comprising a first pin step and a second pin step, and pin wedge threads disposed on each of the first and second pin steps and a box member comprising a first box step and a second box step, and box wedge threads disposed on each of the first and second box steps, wherein an axial separation of the first and second pin steps differs from an axial separation of the first and second box steps.
    Type: Application
    Filed: April 11, 2013
    Publication date: August 29, 2013
    Applicant: HYDRIL COMPANY
    Inventor: Hydril Company
  • Patent number: 8496274
    Abstract: A threaded connection includes a pin member comprising a first pin step and a second pin step, and pin wedge threads disposed on each of the first and second pin steps and a box member comprising a first box step and a second box step, and box wedge threads disposed on each of the first and second box steps, wherein an axial separation of the first and second pin steps differs from an axial separation of the first and second box steps.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: July 30, 2013
    Assignee: Hydril Company
    Inventors: David Llewellyn Mallis, Gary W. Ward
  • Patent number: 8177262
    Abstract: An expandable tubular connection includes a pin member and a box member. The pin member includes a pin thread formed on a small step and a large step and a first seal surface formed between the small step and the large step. The box member includes a box thread formed on a small step and a large step and a second seal surface formed between the small step and the large step. The pin thread and the box thread are wedge threads. Upon a selected make-up of the pin member with the box member a selected gap exists between the first seal surface and the second seal surface. The gap is selected such that, when plastically radially expanded by a selected amount, a seal is formed between at least a portion of the first seal surface and the second seal surface.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: May 15, 2012
    Assignee: Hydril Company LP
    Inventors: Robert S. Sivley, IV, Gary W. Ward, Harris A. Reynolds, Jr.
  • 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.
  • Publication number: 20120074690
    Abstract: A threaded connection includes a pin member comprising a first pin step and a second pin step, and pin wedge threads disposed on each of the first and second pin steps and a box member comprising a first box step and a second box step, and box wedge threads disposed on each of the first and second box steps, wherein an axial separation of the first and second pin steps differs from an axial separation of the first and second box steps.
    Type: Application
    Filed: December 2, 2011
    Publication date: March 29, 2012
    Applicant: HYDRIL COMPANY
    Inventors: David Llewellyn Mallis, Gary W. Ward
  • Publication number: 20120074693
    Abstract: A threaded connection includes a pin member comprising a first pin step and a second pin step, and pin wedge threads disposed on each of the first and second pin steps and a box member comprising a first box step and a second box step, and box wedge threads disposed on each of the first and second box steps, wherein an axial separation of the first and second pin steps differs from an axial separation of the first and second box steps.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 29, 2012
    Applicant: HYDRIL COMPANY
    Inventors: David Llewellyn Mallis, Gary W. Ward
  • Publication number: 20120038147
    Abstract: A tubular connection includes a pin member having external wedge threads configured to engage a box member having corresponding internal wedge threads, and a solid lubricant coating applied on at least one of the internal and external wedge threads wherein the solid lubricant coating comprises a first uniform layer of a dry corrosion inhibiting coating made of an epoxy resin containing particles of zinc and a second uniform layer of a dry lubricant coating covering the first uniform layer.
    Type: Application
    Filed: October 28, 2011
    Publication date: February 16, 2012
    Applicant: HYDRIL COMPANY
    Inventors: David Llewellyn Mallis, Andrea L. Reade-Romero
  • Patent number: 8029025
    Abstract: A tubular connection includes a pin member and box member. The pin member includes a pin thread formed on a small step and a large step and a first seal surface formed between the small step and the large step. The box member includes a box thread formed on a small step and a large step and a second seal surface formed between the small step and the large step. The pin thread and the box thread are wedge threads. The small step and the large step of both the pin member and the box member are formed on a single taper. Upon a selected make-up of the pin member with the box member, a seal is formed between at least a portion of the first seal surface and the second seal surface.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: October 4, 2011
    Assignee: Hydril Company
    Inventors: Robert S. Sivley, IV, Gary W. Ward
  • Patent number: 7988205
    Abstract: A threaded pipe connection includes a pin member having an external thread increasing in width in one direction, a box member having an internal thread increasing in width in an opposite direction so that complementary internal and external threads move into engagement upon make-up of the connection, and at least one contact zone in which the pin member and box member are in sealed contact.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: August 2, 2011
    Assignee: Hydril Company
    Inventors: David Llewellyn Mallis, Harris A. Reynolds, Jr.
  • Patent number: 7942454
    Abstract: A threaded connection includes a pin member including a pin thread having a pin thread crest, a pin thread root, a pin load flank, and a pin stab flank, and a box member including a box thread having a box thread crest, a box thread root, a box load flank, and a box stab flank, wherein at least one of the pin thread crest, the pin thread root, the box thread crest, and the box thread root has at least one perturbation formed thereon. Upon a selected make-up of the pin member with the box member, a localized clearance or a localized interference exists between the pin thread and the box thread at the at least one perturbation, wherein the localized clearance between the pin thread and the box thread exists across substantially the entire pin thread crest or substantially the entire box thread crest, and wherein the localized interference between the pin thread and the box thread exists across substantially the entire pin thread crest or substantially the entire box thread crest.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: May 17, 2011
    Assignee: Hydril Company
    Inventor: Harris A. Reynolds, Jr.
  • Publication number: 20110084477
    Abstract: A tubular connection includes a pin member having external wedge threads configured to engage a box member having corresponding internal wedge threads, and a solid lubricant coating applied on at least one of the internal and external wedge threads wherein the solid lubricant coating comprises a first uniform layer of a dry corrosion inhibiting coating made of an epoxy resin containing particles of zinc and a second uniform layer of a dry lubricant coating covering the first uniform layer.
    Type: Application
    Filed: October 4, 2010
    Publication date: April 14, 2011
    Applicant: HYDRIL COMPANY
    Inventors: David Llewellyn Mallis, Andrea L. Reade-Romero
  • Publication number: 20110005743
    Abstract: A mount for a bonnet of a blowout preventer includes at least one support member coupled to a body of the blowout preventer, and a bonnet mounting member moveably coupled to the at least one support member and adapted to move substantially normal to a face of the body of the blowout preventer, wherein the bonnet is coupled to the bonnet mounting member.
    Type: Application
    Filed: September 21, 2010
    Publication date: January 13, 2011
    Applicant: HYDRIL COMPANY LLC
    Inventors: Edward Hemphill, Michael Berckenhoff, William Carbaugh
  • Patent number: 7850211
    Abstract: A wedge-threaded tubular connection includes a pin member and a box member, wherein each of the pin and box members include an engaged thread area, and a clearance gap volume formed between corresponding roots and crests of the pin and box members and arranged along an axial length of the engaged thread area according to a distribution profile. The clearance gap volume distribution profile is configured having a greater clearance gap volume proximate a central portion of the engaged thread area and progressively less clearance gap volume towards each of the distal ends of the engaged thread area.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: December 14, 2010
    Assignee: Hydril Company
    Inventors: Harris A. Reynolds, Jr., Andrew H. Tate
  • Patent number: 7828337
    Abstract: A threaded connection includes a pin member having a pin thread having a pin load flank and a pin stab flank. The threaded connection includes a box member having a box thread having a box load flank and a box stab flank. The pin thread includes a first wedge segment on the pin stab flank and the box thread includes a second wedge segment on the box stab flank. Upon make-up of the pin member with the box member, a contact stress results from engagement of the first wedge segment with the second wedge segment.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: November 9, 2010
    Assignee: Hydril Company LP
    Inventor: Harris A. Reynolds, Jr.
  • Patent number: 7810849
    Abstract: A threaded connection includes a pin member having a pin thread having a pin thread crest, a pin thread root, a pin load flank, and a pin stab flank, a box member having a box thread having a box thread crest, a box thread root, a box load flank, and a box stab flank, wherein at least one of the pin thread crest, the pin thread root, the box thread crest, and the box thread root has at least one perturbation formed thereon, and wherein upon a selected make-up of the pin member with the box member, at least one of a localized clearance or a localized interference exists between the pin thread and the box thread at the at least one perturbation.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: October 12, 2010
    Assignee: Hydril Company LP
    Inventor: Harris A. Reynolds, Jr.