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. 22, 2000
Filed:
Feb. 25, 1998
Stefan Raber, Kaufering, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
An expansion anchor including an anchor rod (1) having a head (2) widening in an insertion direction S; and a sleeve (3) having a plurality of expansion tabs (6) separated from each other by slots (5) and extending from a plastic hinge (4) toward a free front end (7) of the sleeve (3), the expansion tabs (6) expanding radially upon relative displacement of the sleeve (3) and the anchor rod (2) and having each at least one groove-like depression (8 or 9) which opens in a region of the free front end (7) and extends at least along a portion of an axial length (1) of an expansion tab (6), with the groove-like depression (8 or 9) being inclined toward a straight line (G) extending parallel to a sleeve axis (A).