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.

Date of Patent:
Sep. 18, 1984

Filed:

Nov. 15, 1982
Applicant:
Inventor:

James L Mitchell, Carlisle, IA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D / ; B21B / ; B26D / ;
U.S. Cl.
CPC ...
72132 ; 72181 ; 72185 ; 72187 ; 83300 ; 83320 ; 83405 ;
Abstract

A machine for continuously punching, shearing and forming sheet material comprises a frame and punching, shearing, and forming stations. Rollers are provided for continuously feeding sheet material through the stations. A cam periodically engages the tools of the respective punching and shearing stations to actuate the respective punching and shearing operations and simultaneously to advance the respective punching and shearing stations in unison with the direction of feed of the sheet material. The forming station includes adjustable rollers which permit adjustment of the space between the rollers. The method of the present invention comprises continuously feeding the sheet material through the punching, shearing, and forming stations. At the punching and shearing stations, the tools for punching and shearing the sheet material move in unison with the sheet material during the time that they are performing their punching and shearing operations, respectively.


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