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:
Apr. 21, 2009
Filed:
Aug. 15, 2005
Rene Ortler, Schaan, LI;
Sven Dietze, Feldkirch, AT;
Rene Ortler, Schaan, LI;
Sven Dietze, Feldkirch, AT;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
A fastening element has a head (), a stem () adjoining the head) and having a tip at its end remote from the head (), a first bullet-shaped section () extending from the tip () in a direction of the head (), and a thread profile () provided on the stem () and having, on the second section (), a constant steep gradient with a lead angle (β) from° to° and, on the first section (), a gradient that increases from the lead angle (β) of the second section () toward the tip (), with a lead angle (β) at a half of a length between the tip () and the end () of the first section () remote from the tip () amounting to at least°.