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:
Sep. 20, 1994
Filed:
Feb. 26, 1993
Applicant:
Inventors:
Frank Mikic, Kenosha, WI (US);
Jeffrey H Hoff, Kenosha, WI (US);
Assignee:
Snap-on Incorporated, Kenosha, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
81436 ;
Abstract
An improved high torque driving tool has a blade with an arcuately convex end surface having a radius of curvature which is greater than the width of the blade and greater than the radius of curvature of the driving slot in an associated fastener. The blade may be provided with a conical tip protects axially from the end surface and has a base diameter substantially equal to the thickness of the blade at the end surface, the tip being receivable in a conical recess and the driving slot of the associated fastener.