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:
Nov. 07, 2000
Filed:
Apr. 24, 1998
Applicant:
Inventors:
Nigel Dennis Griffin, Whitminster, GB;
John Michael Fuller, Nailsworth, GB;
Alex Newton, Houston, TX (US);
Malcolm Roy Taylor, Gloucestershire, GB;
Andrew Murdock, Stonehouse, GB;
Steven Taylor, Cheltenham, GB;
Assignee:
Camco International (UK) Limited, Stonehouse, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
175381 ; 175382 ; 175426 ;
Abstract
Formation engaging elements are moveably mounted onto a drill bit. Such elements may be used to protect other rigidly mounted formation engaging elements from impacts that occur during use of the drill bit, or they may be used to alter the aggressiveness of the drill bit when used in directional drilling operations.