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:
May. 06, 2014
Filed:
Jan. 12, 2012
Hartmut Bohnet, Waldachtal, DE;
Jochen Kaupp, Waldachtal, DE;
Roland Unterweger, Pfalzgrafenweiler, DE;
Mathias Haag, Haiterbach, DE;
Hartmut Bohnet, Waldachtal, DE;
Jochen Kaupp, Waldachtal, DE;
Roland Unterweger, Pfalzgrafenweiler, DE;
Mathias Haag, Haiterbach, DE;
fischerwerke GmbH & Co. KG, Waldachtal, DE;
Abstract
The invention relates to a fixing element () for anchoring in a drilled hole, having a shank portion () and an expansion element (), there being arranged on the shank portion () an expander body () for expanding the expansion element (). The expansion element () has a plurality of arcuate expansion lobes (), each expansion lobe () being formed by two bridging portions () connected by a yoke (). The bridging portions () of the expansion lobes () together generate an envelope surface (M) of the expansion element (), which envelope surface (M) has rotational symmetry about the longitudinal axis (A) of the fixing element (). In order to provide a fixing element () which can be used both in a wide and also in a narrow drilled hole, the invention proposes that the yoke () have an arcuate curvature () which projects beyond the envelope surface (M) in the radial direction (R).