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:
Jun. 16, 1998
Filed:
Aug. 05, 1996
Eberhard Mader, Eutingen-Gottelfingen, DE;
Rainer Mallee, Waldachtal, DE;
Jurgen Striebich, Horbo, DE;
Gerd Schedler, Waldachtal, DE;
fischerwerke, Artur Fischer GmbH & Co. KG, Waldachtal, DE;
Abstract
The impact-type anchor (1) consists of a metal sleeve (2) provided with a throughgoing passage (3) tapering towards a leading end of the sleeve, into which bore an expander body (5) can be driven to expand the impact-type anchor. The throughgoing passage (3) has a rear cylindrical portion provided with an internal thread (4) as well as a tapering portion. So that the metal sleeve can be inexpensively manufactured while providing pull-out values that are the same as those of a metal sleeve made of solid material, the metal sleeve is stamped out of a sheet metal blank and then rolled up to form a sleeve which is joined at its seam. Furthermore, in order to form the tapering internal bore the expandable legs (7) have a first section (7a) that is bent inwards and a second section (7b) that is bent onto the outer face of the first section. The two sections (7a, 7b) resting one against the other are connected non-displaceably to one another, for example, by means of a punched point (9).