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:
May. 09, 2000
Filed:
Dec. 09, 1998
Applicant:
Inventors:
Frederick William Jowitt, Bingley, GB;
Miles Waterworth, Guiseley, GB;
Richard Mark Golding, Chicago, IL (US);
Assignee:
Crown Cork & Seal Technologies Corporation, Alsip, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72 91 ; 72 94 ; 72117 ;
Abstract
A method and apparatus for reforming the base of a container such as a can having a domed base. The apparatus comprises independent assemblies for rotating the can and for reforming the base profile. The base reforming assembly uses a torque shaft to twist an eccentric and actuate radial movement of a roll into contact with the can base. A stop prevents movement of this roll beyond a predetermined amount, thereby maintaining consistency of profile depth. By minimizing moving parts of the tooling, wear is limited to that which may arise from the stop alone.