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:
Feb. 21, 1978
Filed:
Sep. 30, 1976
Applicant:
Inventor:
Albert Busler, Altmuhldorf, DT;
Assignee:
Hilti Aktiengesellschaft, Schaan, FL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B / ;
U.S. Cl.
CPC ...
85 77 ; 85 85 ;
Abstract
An anchor bolt assembly for insertion into a borehole includes an elongated anchor bolt and an expanding member which is forced radially outwardly into locking engagement with the borehole surface by pulling the anchor bolt through the expanding member in the direction out of the borehole. A stop is provided on the anchor bolt which contacts the expanding member after the locking engagement has been effected and prevents the anchor bolt from being pulled completely through the expanding member. Such a stopping action avoids the loss of the anchoring ability of the assembly.