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:
Dec. 02, 1986
Filed:
Nov. 14, 1983
Applicant:
Inventors:
Josef T Franek, Chorleywood, GB;
Paul Porucznik, Kennington, GB;
Peter H Serby, Newbury, GB;
Christopher J Tod, Steyning, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
413-1 ; 413-4 ; 413-6 ; 413 69 ;
Abstract
In a metal can at least one component having an edge portion forming part of a seam is made from pre-laminated plate comprising a metal substrate with a polymeric film bonded over the whole of one or both of its sides. An aerosol valve cup is made from such plate with its underside having such a polymeric layer, and is secured to the can body in a seam by conventional mechanical deformation, such as swaging, so as to compress the polymeric layer in the seam. This provides a satisfactory seal without the need for any additional sealing material within the seam.