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. 16, 1993
Filed:
Dec. 13, 1991
Applicant:
Inventor:
Christopher P Ramsey, Uffington, GB;
Assignee:
CarnaudMetalbox plc, , GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72105 ; 72 92 ; 723794 ;
Abstract
A method and apparatus are described for forming a plurality of axially extending externally concave complete flutes defining a fluted profile in a cylindrical can body 1. The apparatus comprises a correspondingly profiled mandrel 11 of maximum diameter less than the minimum diameter of the cylindrical can body and comprising a whole number of complete flutes which is less than the number of flutes on the finished can body, an elongate rail 14, means 12 for locating a cylindrical can body over the mandrel, and means 10 for rolling the mandrel relative to the rail to deform a portion of the cylindrical can body between the mandrel and the rail into the fluted profile.