Patents by Inventor David L. Daniel

David L. Daniel 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
  • Method and apparatus for a combined mechanical and metallurgical connection
    Patent number: 6419147
    Abstract: A combination mechanical and metallurgical connection is provided for joining members such as conduits wherein amorphous diffusion bonding material is placed at mating or abutting surfaces in the mechanical joint, the bonding material is compressed under pressure and heat is applied to cause the bonding material to diffuse into the mechanical connection.
    Type: Grant
    Filed: August 23, 2000
    Date of Patent: July 16, 2002
    Inventor: David L. Daniel