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. 12, 2011
Filed:
Feb. 06, 2009
Applicants:
Bret A. Tarnowski, West Allis, WI (US);
David T. Bienfang, Racine, WI (US);
Inventors:
Bret A. Tarnowski, West Allis, WI (US);
David T. Bienfang, Racine, WI (US);
Assignee:
Bucyrus International, Inc., South Milwaukee, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/16 (2006.01); B25B 13/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
A tool wrench assembly for a blasthole drill includes a fork pivotally fixed relative to at least one actuator that moves the fork between an engaged and a disengaged position.