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:
Oct. 04, 1977
Filed:
Feb. 02, 1976
Applicant:
Inventors:
John Valek, Cicero, IL (US);
Roland E Miller, Orangeville, IL (US);
Joseph A Scaletta, Mount Prospect, IL (US);
Assignee:
Kraft, Inc., Glenview, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72348 ; 1131 / ;
Abstract
A method and apparatus for forming a drawn container from a metallic blank are disclosed wherein the blank is drawn over the outer surface of a stationary forming ring by an annular forming die to form a tubular wall portion which is thereafter completely redrawn by a forming punch in co-operation with a forming die, a reverse redrawn annular wall portion of the blank being positioned for engagement by a curling ring to form an inwardly curled rim at the peripheral edge of the open end of the container.