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, 1987
Filed:
Mar. 19, 1985
Applicant:
Inventors:
Gerd-Jurgen Eckold, 3424 St. Andreasberg, DE;
Hans Maass, 3422 Bad Lauterberg, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
29798 ; 29 211 ; 294321 ; 29509 ; 2952 / ; 403283 ;
Abstract
A method and apparatus for joining two adjacent sheets of metal the complementary engaging of a male die and a female die, during one stroke, only one of the two sheets is provided with incisions and the material of the other sheet is pressed through the area defined along the incisions and is extruded laterally beyond the edges thereof to form a rivet-type connection.