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:
Aug. 24, 2010
Filed:
May. 06, 2005
Applicants:
Gavin David Cowie, Kincardineshire, GB;
John David Sangster, Aberdeenshire, GB;
Inventors:
Gavin David Cowie, Kincardineshire, GB;
John David Sangster, Aberdeenshire, GB;
Assignee:
Enovate Systems Limited, Aberdeen, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 34/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A wellbore control device () for sealing a wellbore is described. The device has, in a preferred arrangement, two opposed cutting rams () which are coupled to respective linkage mechanisms (). The linkage mechanisms translate axial movement of a piston into radial movement to move the rams towards each other in the device throughbore. This results in an effective wellbore control device having a compact size and shape which can be encompassed within a wellbore.