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. 04, 1989
Filed:
May. 25, 1988
Peter J Airey, Vulaines-sur-Seine, FR;
Bernard Doremus, Missouri, TX (US);
Schlumberger Technology Corporation, New York, NY (US);
Abstract
The invention is directed to a locking mechanism for locking a tool to an anchor seat located in the tubing of a well, the locking mechanism comprising keys which are radially movable relative to the axis of the tool, the keys emerging via apertures in the body of the tool to engage in a groove of an anchor seat located in the well conduit. The groove of the anchor seat has an internal diameter smaller than the internal diameter of the well conduit. Each key is axially movable within the aperture between a high position and a low position. Structure is provided for retaining the keys in the high position, positioning the keys in a radially retracted position, so that the keys do not cause the tool to be secured in the anchor seat. Structure is also provided for positioning the keys in a radially extended position, causing the keys to contact the groove of the anchor seat, thereby locking the tool to the anchor seat.