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:
May. 08, 1984
Filed:
Feb. 08, 1982
Applicant:
Inventors:
Vinod K Sarin, Lexington, MA (US);
Peter Oberhauser, Sudbury, MA (US);
Assignee:
GTE Laboratories Incorporated, Waltham, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
175410 ; 175418 ;
Abstract
In a mine tool of the type having a drive body holding a bit, the drive body includes forwardly projecting flanges each having a bit engaging surface for transmitting torque to the bit and the bit includes an independent means for securing the bit to the drive body against forward separating movement.