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. 11, 1998
Filed:
May. 29, 1997
Franz-Paul Mayr, Hechenwang, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
An expansion dowel (1) includes an axially extending cylindrical sleeve (2) and an expanding body (3). The sleeve (2) has an axially extending bore (5) and an axially extending expansion section (6) with axially extending slits. The bore (5) tapers inwardly to the leading end of the sleeve in the expansion section (6). The expanding body (3) is received in and expands the expansion section (6). Circumferentially and axially extending approximately V-shaped grooves 9 are formed in the outside surface of the expansion section and/are spaced apart by circumferentially and axially extending cylindrical surface sections (8). The approximately v-shaped grooves have flanks defining an angle (.alpha.) in the range of approximately 120.degree. to 140.degree..
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile