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. 19, 1978
Filed:
Jul. 01, 1977
Paul M Nelson, Houston, TX (US);
Wilson Industries, Inc., Houston, TX (US);
Abstract
A sleeve for supporting a radially inwardly extending key disposed within the interior of a drilling sub is characterized by a substantially cylindrical body member having a plurality of ribs extending either radially inwardly or radially outwardly therefrom to define a plurality of fluid conducting channels. A plurality of threads is provided on the radially outer surface of the sleeve adjacent the first axial end thereof. A radially extending notch divides the threads into a first and second set of threads. With the first and second set of threads engaged with a plurality of threads disposed on the interior of the sub, a threaded bolt is disposed in an axially extending bore provided within the sleeve, to thereby lock the sleeve in position within the sub.