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:
Nov. 22, 1983
Filed:
Nov. 21, 1980
William R Garrett, Conroe, TX (US);
Oncor Corporation, Houston, TX (US);
Abstract
An intermediate weight drill stem member having a tool joint or end with at least one reduced diameter surface for hoisting and handling protected by an enlarged diameter wear protecting length on either side thereof and providing at its junction end with the tubular body a straight-wall surface, a length having a diameter less than the maximum diameter of the adjacent enlarged length, for welding to a straight-wall length of the contiguous externally upset end of the tubular body. The tubular body is preferably about twenty feet long compared to a combined length of ten feet for the two tool joints, thereby eliminating a need for an intermediate wear protector length along the tubular body length.