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:
Dec. 11, 1984
Filed:
Dec. 19, 1983
Applicant:
Inventors:
David T Waldo, Kingwood, TX (US);
James L Peterson, Gretna, LA (US);
William D Grimes, Harvey, LA (US);
Assignees:
Shell Oil Company, Houston, TX (US);
Shell Offshore Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138 / ; 138 89 ;
Abstract
A self-draining composite plastic and steel thread protector for both the pin and box ends of oil field tubulars. The protector completely seals and prevents pressure differentials across the threads as well as provides openings for draining any moisture that may enter the tubular.