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. 25, 2011
Filed:
Oct. 13, 2006
Applicant:
Ralf Birkelbach, Marburg, DE;
Inventor:
Ralf Birkelbach, Marburg, DE;
Assignee:
EJOT GmbH & Co. KG, Bad Laasphe, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25G 3/34 (2006.01); B23K 20/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a rotationally symmetrical fastening element with an axially centralized rounded tip for a friction-welded joint with a flat component. The tip is adjoined by a conical lateral surface, the conical lateral surface transitioning into a flute for receiving a material melted during friction-welding, and by a shoulder, wherein the shoulder surrounds the flute, is axially recessed in relation to the tip and transitions into the friction-welded joint.