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:
Jul. 01, 2014
Filed:
Feb. 24, 2012
Applicant:
Paul Bartig, Giessen, DE;
Inventor:
Paul Bartig, Giessen, DE;
Assignee:
Newfrey LLC, Newark, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16B 19/08 (2006.01); B21J 15/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a punch rivet for connecting two workpieces. The rivet includes a head and a hollow shank having a shank internal diameter (D), a shank external diameter (D) and a shank end face. Located at the shank end face is an annular cutting edge with a diameter (D) that is smaller than the shank external diameter (D). The shank internal diameter (D) merges with the annular cutting edge via a cutting edge radius (R); and the ratio of the cutting edge radius to the shank external diameter R/Dis greater than 0.3.