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:
Jul. 29, 1997
Filed:
May. 13, 1996
Armin Herb, Apfeldorf, DE;
Hubert Forster, Moorenweis, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
An attachment assembly formed of an anchor bolt (1) and an expansion wedge (2) with the anchor bolt having an outside surface (4) at its leading end in the setting direction and widening in a wedge-like manner. The expansion wedge (2) can be displaced axially along the wedge-like outside surface (4) for effecting expansion of the attachment assembly. At its trailing end (6), the anchor bolt (1) has a flange-like engagement part (5) for applying a load to a receiving material into which the attachment assembly is expanded. The engagement part (5) has a throughbore (3) through which the expansion wedge (2) extends and is secured in a preassembled state. The expansion wedge (2) has a trailing end section (14) extending rearwardly from the engagement part (5) in the preassembled state so that in the expanded state the expansion wedge is held in a press fit in the throughbore (3).