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:
Oct. 02, 1984
Filed:
May. 21, 1982
Erwin Schiefer, Munich, DE;
Hilti Aktiengesellschaft, , US;
Abstract
An anchor bolt assembly includes an anchor bolt and an expansion sleeve. The anchor bolt has a leading end and a trailing end and includes a cylindrically shaped body extending from the trailing end toward the leading end. A frusto-concial part extends from the leading end toward the trailing end. A reduced diameter part interconnects the adjacent ends of the body and the frusto-conical part. The reduced diameter part has a diameter smaller than that of the cylindrically shaped body and equal to the minimum diameter of the frusto-conical part. The expansion sleeve is fitted onto the reduced diameter part by deforming it inwardly into partial surface contact with the reduced diameter part. The expansion sleeve has at least one deformable web permitting it to be expanded radially outwardly for anchoring the bolt in a borehole.