Patents by Inventor CLAYTON D. HARGIS

CLAYTON D. HARGIS 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).

  • COILED TUBING WITH IMPROVED FATIGUE RESISTANCE AND METHOD OF MANUFACTURE
    Publication number: 20130092279
    Abstract: New methods of manufacturing coiled tubing result in increased useful life of the coiled tubing string by creating an enhanced strip-to-strip weld zone having load bearing and/or fatigue resistance properties substantially equal to or greater than the load bearing and/or fatigue resistance properties of the strip base material. The enhanced weld zone is transition into the nominal tubing to reduce stress concentration.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 18, 2013
    Applicant: QUALITY TUBING, INC.
    Inventors: David L. Daniel, William D. Van Arnam, III, Danny J. Dennis, Kevin J. Elliot, Clayton D. Hargis
  • COILED TUBING WITH IMPROVED FATIGUE RESISTANCE AND METHOD OF MANUFACTURE
    Publication number: 20120118426
    Abstract: New methods of manufacturing coiled tubing result in increased useful life of the coiled tubing string by creating an enhanced strip-to-strip weld zone having load bearing and/or fatigue resistance properties substantially equal to or greater than the load bearing and/or fatigue resistance properties of the strip base material. The enhanced weld zone is transition into the nominal tubing to reduce stress concentration.
    Type: Application
    Filed: October 12, 2011
    Publication date: May 17, 2012
    Applicant: QUALITY TUBING, INC.
    Inventors: DAVID L. DANIEL, WILLIAM D. VAN ARNAM, III, DANNY J DENNIS, KEVIN J. ELLIOTT, CLAYTON D. HARGIS