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:
Sep. 10, 2002
Filed:
May. 12, 2000
Applicant:
Inventor:
Jackie E. Smith, Houston, TX (US);
Assignee:
Grant Prideco, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 3/700 ; F16L 2/500 ;
U.S. Cl.
CPC ...
F16L 3/700 ; F16L 2/500 ;
Abstract
An oilfield tubular member includes pin member and box member each having a tapered thread . The pin thread has a root , a crest , a pressure flank and stab flank . The box thread has root , a crest , a pressure flank and stab flank . The pin crest has a stab flank pin crest radius and a pressure flank pin crust radius which is at least twice the radius . The improved oilfield connection minimizes damage to the connection during misalignment of the pin member and box member.