Pressurizable containers

Details Pressurizable containers Pressurizable containers

1988-06-15

1989-05-23

Marmor, Charles A.

Dispensing

With discharge assistant

Fluid pressure

222542, 413 7, 413 62, 53470, 53488, B65D 8314

Patent

active

048322369

ABSTRACT:
A valve cup (60) for an aerosol dispensing can has a side wall (68) of lesser girth at the bottom than in an upper zone of which a portion is adapted to intensify the seal in the swaged seam between the cup curl (70') and the body curl (22). The side wall has for example a step (88) which acts as a fulcrum. In the swaged seam the seal is intensified in the area adjacent the step and down to a second point of contact where the side wall is deformed by the swaging tool (38) into contact with the body wall (1).

REFERENCES:
patent: 3095122 (1963-06-01), Lewiecki et al.
patent: 3385482 (1968-05-01), Frangos
patent: 3512685 (1970-05-01), Ewald
patent: 3620421 (1971-11-01), MacGuire-Cooper
patent: 4139128 (1979-02-01), Ewald
patent: 4150522 (1979-04-01), Burger

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