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:
Oct. 01, 2002
Filed:
Apr. 09, 2001
Wolfgang Ludwig, Schwabmünchen, DE;
Erich Leibhard, Munich, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
A tubular anchor includes a tubular member ( ) with a drilling head ( ) at one of its end, a load application element ( ) extending along a portion of the tubular member opposite the one end, opening ( ) provided in a region of the drilling head. The tubular anchor also includes at least one, substantially cylindrical, hollow element ( ) for receiving a mortar mass ( ) and closed, at its opposite ends, with two displaceable pistons ( ), respectively, with one of the pistons being received in a piston-receiving region of the at least one mortar-mass receiving element and facing in a setting direction (S), ( ) and at least one through-opening ( ) spaced from a free end of the piston-receiving region ( ) by a distance (a, b) corresponding at least to a length (l) of the piston ( ) received therein.