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:
Mar. 21, 2006
Filed:
Apr. 26, 2001
Applicant:
David Mallis, The Woodlands, TX (US);
Inventor:
David Mallis, The Woodlands, TX (US);
Assignee:
Hydril Company LP, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 55/00 (2006.01); B23Q 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A threaded pipe connection includes a box member, a pin member and a wear indicator for the connection. The pin member has internal threads and the box member has external threads. The internal threads of the box member each increase in width in one direction, while the external threads of the pin member increase in width in the other direction so that the complementary internal and external threads move into engagement upon make-up of the connection.