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. 15, 2015
Filed:
Dec. 14, 2012
Applicant:
National Oilwell Varco, L.p., Houston, TX (US);
Inventor:
Brian Daniel Winter, Cypress, TX (US);
Assignee:
National Oilwell Varco, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/16 (2006.01); F16M 13/02 (2006.01); F15B 15/14 (2006.01); F15B 11/13 (2006.01);
U.S. Cl.
CPC ...
F16M 13/022 (2013.01); E21B 19/165 (2013.01); F15B 11/13 (2013.01); F15B 15/1423 (2013.01);
Abstract
A positioning apparatus for moving connection equipment on a drilling rig is disclosed. The positioning apparatus includes a piston and cylinder having a cylinder, a piston and a piston rod. The piston and piston rod are moveable relative to the cylinder ()from a retracted position to an extended position. The positioning apparatus further includes a transfer barrier linked to the piston and cylinder for setting a maximum extension of said piston rod.