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:
Jan. 18, 2011
Filed:
Feb. 29, 2008
Applicants:
Grant Pruitt, Fort Smith, AR (US);
Cris Braun, Leander, TX (US);
Inventors:
Grant Pruitt, Fort Smith, AR (US);
Cris Braun, Leander, TX (US);
Assignee:
Pruitt Group, Inc., Fort Smith, AR (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 23/00 (2006.01); E21B 33/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An improved rotating head that utilizes a box assembly that stores at least one locking element that that allows for movement of the locking balls within the box assembly such that a liner inserted into the box assembly biases the locking elements to a locked position to couple the box assembly and the outer barrel. An integrated wear surface of the present invention seals the bearing elements to extend the life of the rotating head and reduce downtime caused by necessary maintenance of the rotating head.