Patents by Inventor Andrew H. Tate

Andrew H. Tate 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).

  • Wedge thread connections having a clearance gap volume
    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