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:
Jun. 27, 2023
Filed:
Jan. 21, 2020
Böllhoff Verbindungstechnik Gmbh, Bielefeld, DE;
Sergej Erbis, Borchen, DE;
Dennis Henke, Herzebrock-Clarholz, DE;
Franz Ferdinand Menne, Bad Lippspringe, DE;
Böllhoff Verbindungstechnik GmbH, Bielefeld, DE;
Abstract
A semi-hollow punch rivet by which a joint is establishable. The rivet includes: a rivet head having a rivet shaft, which comprises a lateral surface, a rivet foot having a foot front surface is provided at an end of the rivet shaft facing away from the rivet head, the foot front surface is perpendicular to a longitudinal axis Lof the rivet shaft, and a bell-like shaft cavity extends into the rivet shaft beginning at the end facing away from the head. The shaft cavity is formed by: an inlet portion beginning at a radial inner side of the foot front surface and extending arc-shaped with an inlet radius Rin the direction of the rivet head, a linearly extending continuation portion into which the inlet portion transitions tangentially and which is arranged in an acute angle with respect to the lateral surface, and a final dome portion.