Patents by Inventor Danny Lee Artherholt

Danny Lee Artherholt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120211219
    Abstract: An injector spool supports a plurality of ball injector assemblies having respective ball cartridges adapted to load one frac ball at a time into a ball chamber of a ball launcher of the respective ball injector assemblies to provide a horizontal frac ball injector adapted to be connected to a frac head by frac iron.
    Type: Application
    Filed: February 22, 2011
    Publication date: August 23, 2012
    Applicant: STINGER WELLHEAD PROTECTION, INC.
    Inventors: Bob McGuire, Danny Lee Artherholt
  • Patent number: 8205916
    Abstract: A metal ring gasket provides a high-pressure temperature tolerant metal-to-metal seal between subcomponents of a threaded union. The metal ring gasket is received in an annular cavity formed between mating surfaces of the subcomponents of the threaded union. The metal ring gasket is capable of maintaining a fluid seal even at very high temperatures resulting from direct exposure to fire. At high fluid pressures the metal ring gasket is energized because hoop stress induced by the fluid pressure forces the metal ring gasket into tighter contact with the subcomponents of the threaded union.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: June 26, 2012
    Assignee: Stinger Wellhead Protection, Inc.
    Inventors: L. Murray Dallas, Bob McGuire, Danny Lee Artherholt
  • Publication number: 20120152525
    Abstract: An injector spool supports a plurality of ball injector assemblies having respective ball cartridges adapted to load one frac ball at a time into a ball chamber of a ball launcher of the respective ball injector assemblies to provide a low profile, high capacity ball injector.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 21, 2012
    Applicant: STINGER WELLHEAD PROTECTION, INC.
    Inventors: Bob McGuire, Danny Lee Artherholt
  • Patent number: 8113275
    Abstract: A multipart frac head with removable components permits the frac head to be refurbished in the field. A bottom leg and inlet ports of the multipart frac head can be replaced.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: February 14, 2012
    Assignee: Stinger Wellhead Protection, Inc.
    Inventors: Bob McGuire, Danny Lee Artherholt
  • Publication number: 20110175349
    Abstract: A metal ring gasket provides a high-pressure temperature tolerant metal-to-metal seal between subcomponents of a threaded union. The metal ring gasket is received in an annular cavity formed between mating surfaces of the subcomponents of the threaded union. The metal ring gasket is capable of maintaining a fluid seal even at very high temperatures resulting from direct exposure to fire. At high fluid pressures the metal ring gasket is energized because hoop stress induced by the fluid pressure forces the metal ring gasket into tighter contact with the subcomponents of the threaded union.
    Type: Application
    Filed: April 4, 2011
    Publication date: July 21, 2011
    Applicant: STINGER WELLHEAD PROTECTION, INC.
    Inventors: L. Murray Dallas, Bob McGuire, Danny Lee Artherholt
  • Patent number: 7922216
    Abstract: A metal ring gasket provides a high-pressure temperature tolerant metal-to-metal seal between subcomponents of a threaded union. The metal ring gasket is received in an annular cavity formed between mating surfaces of the subcomponents of the threaded union. The metal ring gasket is capable of maintaining a fluid seal even at very high temperatures resulting from direct exposure to fire. At high fluid pressures the metal ring gasket is energized because hoop stress induced by the fluid pressure forces the metal ring gasket into tighter contact with the subcomponents of the threaded union.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: April 12, 2011
    Assignee: Stinger Wellhead Protection, Inc.
    Inventors: L. Murray Dallas, Bob McGuire, Danny Lee Artherholt
  • Publication number: 20110048698
    Abstract: A multipart frac head with removable components permits the frac head to be refurbished in the field. A bottom leg and inlet ports of the multipart frac head can be replaced.
    Type: Application
    Filed: November 8, 2010
    Publication date: March 3, 2011
    Applicant: STINGER WELLHEAD PROTECTION, INC.
    Inventors: Bob McGuire, Danny Lee Artherholt
  • Patent number: 7845619
    Abstract: A two-part back cap for a plug valve includes a back cap seal body and a back cap retainer nut. The back cap retainer nut secures the back cap seal body within the plug valve and securely supports the back cap seal body. A gap between an outer periphery of the back cap retainer nut and the back cap seal body permits the back cap seal body to flex and expand with a plug valve body of the plug valve. This ensures that the back cap seals are not stressed and a longer service life results.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: December 7, 2010
    Assignee: Stinger Wellhead Protection, Inc.
    Inventor: Danny Lee Artherholt
  • Patent number: 7828053
    Abstract: A multipart frac head with replaceable components permits the frac head to be refurbished in the field. In one embodiment, a bottom leg of the multipart frac head is replaceable. In another embodiment, inlet ports of the frac head are also replaceable.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: November 9, 2010
    Assignee: Stinger Wellhead Protection, Inc.
    Inventors: Bob McGuire, Danny Lee Artherholt
  • Publication number: 20100171060
    Abstract: A two-part back cap for a plug valve includes a back cap seal body and a back cap retainer nut. The back cap retainer nut secures the back cap seal body within the plug valve and securely supports the back cap seal body. A gap between an outer periphery of the back cap retainer nut and the back cap seal body permits the back cap seal body to flex and expand with a plug valve body of the plug valve. This ensures that the back cap seals are not stressed and a longer service life results.
    Type: Application
    Filed: March 18, 2010
    Publication date: July 8, 2010
    Applicant: STINGER WELLHEAD PROTECTION, INC.
    Inventor: Danny Lee Artherholt
  • Patent number: 7743822
    Abstract: A snubber spool with detachable base plates includes a base flange with a plurality of spaced-apart load pins received in through bores in the base plates. Tie plates with bores for receiving top ends of the load pins are mounted over the base plates in an offset orientation with respect to the base plates. A load nut that engages a pin thread on an outer sidewall of the snubber spool is tightened down on the tie plates to lock the base plates to the snubber spool.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: June 29, 2010
    Assignee: Stinger Wellhead Protection, Inc.
    Inventor: Danny Lee Artherholt
  • Patent number: 7708061
    Abstract: A cup tool includes a cup tool tube having a threaded upper end for connection to a high-pressure mandrel, an outer surface over which an elastomeric cup is slidably mounted for reciprocal movement from an unset position for entry into a wellbore to a set position in which an annular gap is obstructed to contain fluid pressure below the elastomeric cup. The outer surface of the cup tool tube has a lower region of a first diameter and an upper region with a second, larger diameter and a tapered region between the upper region and the lower region. The elastomeric cup includes a lip seal that rides against the outer surface of the cup tool tube, and seals against the tapered region of the cup tool tube to provide a high pressure seal between the cup tool tube and the elastomeric cup in the set position.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: May 4, 2010
    Assignee: Stinger Wellhead Protection, Inc.
    Inventors: Bob McGuire, Danny Lee Artherholt
  • Publication number: 20100096852
    Abstract: A metal ring gasket provides a high-pressure temperature tolerant metal-to-metal seal between subcomponents of a threaded union. The metal ring gasket is received in an annular cavity formed between mating surfaces of the subcomponents of the threaded union. The metal ring gasket is capable of maintaining a fluid seal even at very high temperatures resulting from direct exposure to fire. At high fluid pressures the metal ring gasket is energized because hoop stress induced by the fluid pressure forces the metal ring gasket into tighter contact with the subcomponents of the threaded union.
    Type: Application
    Filed: January 6, 2010
    Publication date: April 22, 2010
    Applicant: STINGER WELLHEAD PROTECTION, INC.
    Inventors: L. Murray Dallas, Bob McGuire, Danny Lee Artherholt
  • Patent number: 7699291
    Abstract: A two-part back cap for a plug valve includes a back cap seal body and a back cap retainer nut. The back cap retainer nut secures the back cap seal body within the plug valve and securely supports the back cap seal body. A gap between an outer periphery of the back cap retainer nut and the back cap seal body permits the back cap seal body to flex and expand with a plug valve body of the plug valve. This ensures that the back cap seals are not stressed and a longer service life results.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: April 20, 2010
    Assignee: Stinger Wellhead Protection, Inc.
    Inventor: Danny Lee Artherholt
  • Patent number: 7669654
    Abstract: A cup tool for use with a high-pressure mandrel of a wellhead isolation tool has a three-part packoff assembly that slides over a cup tool tube from an unset position to a set position. The three-part packoff assembly includes an elastomeric cup, a rigid alignment ring located above the elastomeric cup and an elastomeric packoff element located above the rigid alignment ring. The rigid alignment ring helps ensure that the elastomeric cup remains correctly aligned in a casing or tubing that is not straight, is out of round or is washed, and helps ensure that the elastomeric packoff achieves a high-pressure seal in the set position, even under adverse downhole conditions.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: March 2, 2010
    Assignee: Stinger Wellhead Protection, Inc.
    Inventor: Danny Lee Artherholt
  • Patent number: 7654585
    Abstract: A metal ring gasket provides a high-pressure temperature tolerant metal-to-metal seal between subcomponents of a threaded union. The metal ring gasket is received in an annular cavity formed between mating surfaces of the subcomponents of the threaded union. The metal ring gasket is capable of maintaining a fluid seal even at very high temperatures resulting from direct exposure to fire. At high fluid pressures the metal ring gasket is energized because hoop stress induced by the fluid pressure forces the metal ring gasket into tighter contact with the subcomponents of the threaded union.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: February 2, 2010
    Assignee: Stinger Wellhead Protection, Inc.
    Inventors: L. Murray Dallas, Bob McGuire, Danny Lee Artherholt
  • Patent number: 7644757
    Abstract: A fixed-point packoff element for a full-bore pressure isolation tool supports a primary seal and a test seal to permit the primary seal to be tested by injecting test fluid through a side port of a tubing head spool before the pressure isolation tool is rigged up for a well stimulation procedure.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: January 12, 2010
    Assignee: Stinger Wellhand Protection, Inc.
    Inventor: Danny Lee Artherholt
  • Publication number: 20100001219
    Abstract: A two-part back cap for a plug valve includes a back cap seal body and a back cap retainer nut. The back cap retainer nut secures the back cap seal body within the plug valve and securely supports the back cap seal body. A gap between an outer periphery of the back cap retainer nut and the back cap seal body permits the back cap seal body to flex and expand with a plug valve body of the plug valve. This ensures that the back cap seals are not stressed and a longer service life results.
    Type: Application
    Filed: September 10, 2009
    Publication date: January 7, 2010
    Applicant: STINGER WELLHEAD PROTECTION, INC.
    Inventor: Danny Lee Artherholt
  • Patent number: 7597307
    Abstract: A two-part back cap for a plug valve includes a back cap seal body and a back cap retainer nut. The back cap retainer nut secures the back cap seal body within the plug valve and securely supports the back cap seal body. A gap between an outer periphery of the back cap retainer nut and the back cap seal body permits the back cap seal body to flex and expand with a plug valve body of the plug valve. This ensures that the back cap seals are not stressed and a longer service life results.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: October 6, 2009
    Assignee: Stinger Wellhead Protection, Inc.
    Inventor: Danny Lee Artherholt
  • Publication number: 20090145593
    Abstract: A snubber spool with detachable base plates includes a base flange with a plurality of spaced-apart load pins received in through bores in the base plates. Tie plates with bores for receiving top ends of the load pins are mounted over the base plates in an offset orientation with respect to the base plates. A load nut that engages a pin thread on an outer sidewall of the snubber spool is tightened down on the tie plates to lock the base plates to the snubber spool.
    Type: Application
    Filed: December 5, 2007
    Publication date: June 11, 2009
    Applicant: STINGER WELLHEAD PROTECTION, INC.
    Inventor: Danny Lee Artherholt