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:
Dec. 24, 1985
Filed:
Dec. 08, 1983
Applicant:
Inventors:
Armin Herb, Peissenberg, DE;
Peter Froehlich, Neuried, DE;
Assignee:
Hilti Aktiengesellschaft, , US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
411 44 ; 411 54 ; 411 55 ; 411 79 ;
Abstract
An expansion dowel assembly includes an axially extending dowel and an expansion member. In the expansion step the expansion member is axially displaced over a surface on the dowel providing form-locking engagement of the dowel assembly within a borehole. The surface on the dowel, over which the expansion member is displaced, is made up of two serially arranged axially extending surface sections. Each surface section is disposed at a different acute angle to the dowel axis.