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:
Nov. 10, 1981
Filed:
Aug. 22, 1979
Applicant:
Inventor:
Friedrich-Karl Koch, Krefeld, DE;
Assignee:
Peltzer & Ehlers, Krefeld, DE;
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; B21K / ;
U.S. Cl.
CPC ...
10 8 / ;
Abstract
A method for the preparation of hexagonal nuts by cold forming wherein a blank is shaped and formed to a hexagonal configuration wherein the distances across the flats of the hexagon are greater than in the finished nut, and thereafter the rough nut is forced into a shaping die and over a punch concentric therewith, whereby the punch forms the central opening in the nut and the shaping die reduces the distances across the flats of the hexagon to that of the final nut size.
Koch, Friedrich-Karl. (1981). Method for the production of threaded nuts by cold forming (U.S. Patent No. 4299000). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4299000
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile