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. 09, 1993
Filed:
Apr. 16, 1992
Applicant:
Inventor:
Martin Strauch, Wuppertal, DE;
Assignee:
Wera Werk Hermann Werner GmbH & Co., Wuppertal, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
81436 ; 81460 ; 81900 ;
Abstract
A slot screwdriver with convex wide-side surfaces of the blade (3, 19) on its working end (8, 20) and, in order to optimize the use thereof, it proposes that the convexity be formed of two convex arcs (10, 21) present on each wide-side surface and lying symmetrically on both sides of the transverse center plane (A--A) of the blade (3, 19).