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:
Feb. 08, 1994
Filed:
Apr. 09, 1992
Applicant:
Inventors:
Martin Strauch, Wuppertal, DE;
Andreas Reusch, Remscheid, DE;
Assignee:
Wera Werk Hermann Werner GmbH & Co., Wuppertal, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
81436 ; 81460 ;
Abstract
A screwing tool, particularly a screwdriver (1) or screwdriver bit, for polygonal socket screws (8), having flank sections (12) which are convex in circumferential direction; in order to optimize the transmission of force it is proposed that the flank sections (12, 12') be interrupted in the central region of each flank (11) by a non-convexly extending intermediate section (13/13').