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:
Jun. 16, 2009
Filed:
Nov. 12, 2007
Jeff A. Lambert, Conroe, TX (US);
James C. Garrett, Kingwood, TX (US);
Kenneth L. Cambern, Pampa, TX (US);
Joel M. Ferland, Pampa, TX (US);
Jay D. Furnish, Pampa, TX (US);
Donald W. Johnson, Pampa, TX (US);
Michael R. Zemanek, Pampa, TX (US);
James R. Cirone, Pampa, TX (US);
Calvin Blankenship, Lindsay, OK (US);
Jeff A. Lambert, Conroe, TX (US);
James C. Garrett, Kingwood, TX (US);
Kenneth L. Cambern, Pampa, TX (US);
Joel M. Ferland, Pampa, TX (US);
Jay D. Furnish, Pampa, TX (US);
Donald W. Johnson, Pampa, TX (US);
Michael R. Zemanek, Pampa, TX (US);
James R. Cirone, Pampa, TX (US);
Calvin Blankenship, Lindsay, OK (US);
National-Oilwell, L.P., Houston, TX (US);
Abstract
A method and apparatus for positioning and supporting the work platform of a mobile workover rig is disclosed. The work platform of the preferred embodiment of the present invention utilizes a unique support structure and automated positioning system for positioning the work platform at the desired height above the wellhead equipment. The preferred embodiment of the present invention utilizes a specialized automated 'pinning' system that secures the work platform at the desired height. Additionally, the present invention utilizes one or more support cylinders to position and support the work platform in the horizontal position over the wellhead equipment. The automated positioning and pinning system of the present invention is a unique system that significantly reduces the time required to position the work platform of a mobile workover rig in the operating position, as well as significantly reduces the risk of injury to rig personnel assisting in the positioning operations.