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:
Apr. 27, 2010
Filed:
Apr. 26, 2004
Applicants:
Alan Martyn Eddison, Stonehaven, GB;
Mark Adam, Aberdeen, GB;
Inventors:
Alan Martyn Eddison, Stonehaven, GB;
Mark Adam, Aberdeen, GB;
Assignee:
Andergauge Limited, Aberdeen-Scotland, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A downhole tool comprises a body, radially extendable members mounted to the body and movable between retracted and extended positions, a cam member operatively associated with the extendable members and movable relative to the body to extend the extendable members, and a support member configurable to permit retraction of the extendable members from an extended position. The tool may be an under-reamer, and the extendable members may be cutting blades.