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:
Jul. 01, 2014
Filed:
May. 20, 2011
Larry Don Case, McAlester, OK (US);
Jason Neal Whaley, Hartshorne, OK (US);
Randall Ferrain Weaver, McAlester, OK (US);
Larry Don Case, McAlester, OK (US);
Jason Neal Whaley, Hartshorne, OK (US);
Randall Ferrain Weaver, McAlester, OK (US);
National Oilwell Varco, L.P., Houston, TX (US);
Abstract
Apparatus and methods for removing valve cover components includes a torque transfer tool that mates with an extending portion of the valve cover assembly and has a multi-faceted segment to receive a torque-supplying wrench. A hydraulically-actuated wrench has a head with a multi-faceted portion that engages the corresponding multi-faceted segment of the torque transfer tool. The wrench's hydraulic cylinder rotates the wrench head upon actuation. The multifaceted segments can be splined. Also disclosed is a reaction tube against which the wrench can be braced prior to actuation of the cylinder.