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:
Jan. 10, 2012
Filed:
Sep. 14, 2007
Applicant:
Eberhard Christ, Tambach-Dietharz, DE;
Inventor:
Eberhard Christ, Tambach-Dietharz, DE;
Assignee:
Ejot GmbH & Co. KG, Bad Laasphe, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16B 37/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a fixing element having a concentric end face forming a frictional surface for friction welding joining to a flat part by rotational force and axial force applied by the fixing element to the part, and having multiple radially oriented ridges on the end face. The ridges are limited in the direction of rotation by a front groove introduced into the friction surface, the ridges rising only slightly over the friction surface in the axial direction and being provided with a scraping surface that pushes the material scraped during the friction welding process into the front groove.