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:
Aug. 30, 1994
Filed:
Jul. 09, 1993
Applicant:
Inventor:
Artur Fischer, Tumlingen/Waldachtal, DE;
Assignee:
fischerwerke Artur Fischer GmbH & Co. KG, Waldachtal, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
411 60 ; 411 72 ; 411908 ;
Abstract
An impact-type expansible plug for anchoring in a cylindrical drilled hole of a concrete part and the like has an expansion sleeve provided with at least one longitudinal slot and expandable in a drilled hole, and also has an expansion sleeve with a conically narrowing internal bore, and an expansion mandrel drivable into the conically narrowing internal bore of the expansion sleeve. The expansion sleeve has a forward end provided with an annular collar having a radially directed circumferential cutting edge, and also has a portion tapering toward the annular collar.