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. 30, 1999
Filed:
Oct. 27, 1997
Hans Joachim Mehlau, Solingen, DE;
Klaus Neuhaus, Wuppertal, DE;
Eduard Wille GmbH & Co., Wuppertal, DE;
Abstract
An engineers wrench has at least one open end forming a mouth which defines a mouth opening. The mouth opening is laterally delimited by a pair of mutually oppositely disposed lateral, surfaces which define a wrench width. At least inwardly disposed sections of the lateral surfaces have a slight convex-cylindrical curvature defined by a finite radius of curvature so that the mouth opening widens in the direction towards respective outer edges to a mouth width which exceeds the wrench width. The mouth opening is inwardly delimited by a mouth base; two substantially flat surfaces are interconnected at the mouth base as well as connected to associated ones of the lateral surfaces through respective connecting surfaces. The connecting surfaces have a concave-cylindrical curvature defined by a smaller radius of curvature than the finite radius of curvature of the convex-cylindrically curved lateral surfaces.