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. 07, 1983
Filed:
Jun. 20, 1980
Edmund A Fisher, Houston, TX (US);
Henry W Miller, Houston, TX (US);
Cameron Iron Works, Inc., Houston, TX (US);
Abstract
A tubing hanger landing and orienting tool for a subsea wellhead having a mandrel connected to the tubing hanger, a sleeve surrounding a portion of the mandrel and being axially movable thereon, a liquid filled chamber between the sleeve and the mandrel, a shoulder on the sleeve adapted to seat in the wellhead, relative movement of the sleeve and the mandrel after seating of the sleeve in the wellhead causing a change of volume in the chamber, means controlling the volume in the chamber to cushion the landing of the tubing hanger, pressure responsive extendible lug in the mandrel which when extended coacts with a cam and slot surface within an orienting spool to orient the tubing hanger in the wellhead, and means for applying pressure from said chamber to extend said lug after seating of the sleeve in the wellhead.