The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2009
Filed:
Dec. 30, 2004
Applicants:
David Llewellyn Mallis, The Woodlands, TX (US);
Robert S. Sivley, Iv, Kingwood, TX (US);
Harris A. Reynolds, Jr., Houston, TX (US);
Inventors:
David Llewellyn Mallis, The Woodlands, TX (US);
Robert S. Sivley, IV, Kingwood, TX (US);
Harris A. Reynolds, Jr., Houston, TX (US);
Assignee:
Hydril LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A tubular connection is provided with a first thread on a first step having an initial makeup location and a second thread on a second step, the second thread being a wedge thread and having a selected clearance on stab and load flanks at the initial makeup location of the first thread.