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:
Jan. 04, 1977
Filed:
Sep. 23, 1974
Applicant:
Inventor:
Jean Hardt, Neuhausen am Rheinfall, CH;
Assignee:
Aluminium Suisse S.A., , CH;
Primary Examiner:
Int. Cl.
CPC ...
B21D / ; B21D / ;
U.S. Cl.
CPC ...
113 / ; 2924352 ; 29509 ; 29523 ;
Abstract
An outwardly flanged valve cup is secured to a rolled annular edge about an opening of an aerosol can, with interposition of a sealing gasket between the flange and edge, by exerting a downward pressure on an inner part of the cap to elastically pre-stress the flange by its reaction pressure against the gasket and edge, and, while the flange is so held, outwardly expanding a skirt portion of the cup by plastic deformation to form an annular fixing bulge therein, the flange being left free to adopt a definitive position as a function of its reaction pressure and being held in its definitive position by the fixing bulge.