1974-09-23
1977-01-04
Moon, Charlie T.
2924352, 29509, 29523, B21D 3700, B21D 5126
Patent
active
040007081
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.
REFERENCES:
patent: 1569573 (1926-01-01), Piccaluga
patent: 1867288 (1932-07-01), Thomas
patent: 2558705 (1951-06-01), Hermann
patent: 2644415 (1953-07-01), Spalding
patent: 3432174 (1969-03-01), Teske et al.
Adams Bruce L.
Aluminium Suisse S.A.
Burns Robert E.
Lobato Emmanuel J.
Moon Charlie T.
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