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. 12, 1981
Filed:
Nov. 30, 1979
Applicant:
Inventor:
Harry W Lee, Jr, Richmond, VA (US);
Assignee:
Reynolds Metals Company, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
220 74 ; 220 72 ; 220 / ; 220 66 ; 1131 / ;
Abstract
A can body suitable for inward necking of the flange region is disclosed in which the flange region thereof includes a plurality of corrugations to increase the effective thickness and thus the stiffness of the metal in this flange region. A method and apparatus for producing these can bodies are also disclosed. The apparatus employed includes a pair of generally circular matched die members which are positioned on either side of the flange region of the can body to be corrugated and a means for rotating the can body, and thus the die members, when contacting the flange region of the can body.