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:
Dec. 02, 2003
Filed:
Mar. 07, 2002
Applicant:
Inventors:
Wolfgang Ludwig, Schwabmünchen, DE;
Erich Leibhard, Munich, DE;
Assignee:
Hilti Aktiengesellschaft, Schaan, LI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B 4/300 ;
U.S. Cl.
CPC ...
F16B 4/300 ;
Abstract
A substantially cylindrical washer having two arch-shaped channels , on a face on the bore hole side of the washer, wherein said channels connect an opening with a through passage The opening is configured for the passage of an anchor rod and the through passage is configured for filling a mortar mass into the bore hole. The channels open relative to the bore hole and include a substantially semi-circular cross-section to assure the high tensile strength of the washer.