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:
Sep. 29, 1992
Filed:
Nov. 20, 1990
Applicant:
Inventor:
Luigi Pazzaglia, Bologna, IT;
Assignee:
Cefin S.p.A., Bologna, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72 92 ; 72 94 ; 413 73 ; 413 75 ; 413 76 ;
Abstract
A carousel type head revolving about a vertical axis and skirted by a fixed reaction sector is equipped with work stations, each comprising a system of brackets to support the cylindrical tin can and a mandrel consisting in a shaft with an interchangeable outer barrel of diameter notably less than the internal diameter of the can, by which the revolving metal body is pinned against the fixed sector to bring about its deformation; the mandrel and brackets of each station rise and fall synchronously in mutual opposition between respective limit positions, each traversing through a vertical distance substantially equal to half the height of the production can.