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:
Feb. 19, 1985
Filed:
May. 27, 1983
Bruce J Watkins, Rancho Palos Verdes, CA (US);
Hughes Tool Company, Houston, TX (US);
Abstract
A sub-sea well assembly has features to eliminate side-to-side movement between a wellhead and a wellhead housing due to movement of the drilling vessel. The wellhead extends into the wellhead housing and is connected on its upper end to equipment extending to the vessel. Slips are located in an annular space between the wellhead housing passage and the exterior wall of the wellhead. The slips are mounted so that they will slide from the contracted position when the wellhead is being placed into the wellhead housing to an expanded position after the wellhead is locked into the wellhead housing. In the expanded position, the slips move downward to wedge, but are not weight bearing. The slips are self-actuating, with a spring to urge them downward into the expanded position.