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. 16, 1985
Filed:
May. 16, 1983
Applicant:
Inventor:
Gilbert C Cadwell, San Diego County, CA (US);
Assignee:
Rohr Industries, Inc., Chula Vista, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72 57 ; 72 63 ; 72387 ;
Abstract
A rotating die system for cold forming of sheet metal wherein a male die rotates relative to both an hydraulically supported resilient diaphragm backing the sheet metal blank and the driving force on the male die. The male die is pivotly connected to both a draw ring and the transmitted driving force. A sheet of metal to be formed is held in place on the upper surface of a draw ring die over a forming aperture. The male die is caused to rotate within the aperture against the sheet metal to accomplish the desired forming.