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, 2017
Filed:
May. 29, 2007
Andyle Gregory Bailey, Kingwood, TX (US);
Steven C. Langford, Magnolia, TX (US);
Andyle Gregory Bailey, Kingwood, TX (US);
Steven C. Langford, Magnolia, TX (US);
VAM USA, LLC, Houston, TX (US);
Abstract
A threaded oilfield tubular connection includes a box connector () having internal threads () and a pin connector () having external threads () for mating with the internal threads. Each of a box torque shoulder () and a pin torque shoulder () may be negative angle shoulders, and the thread flanks on the internal and external threads may also be negative angle load flanks. The connector substantially maintains a desired preload when dope is trapped between the threads during makeup. Another embodiment provides positive angle torque shoulders and positive angle load flanks.