Piston for aerosol container

Details Piston for aerosol container Piston for aerosol container

1977-11-25

1980-11-18

Spar, Robert J.

Dispensing

With discharge assistant

Container with follower

92240, 222389, B67D 554

Patent

active

042341086

ABSTRACT:
A piston for an aerosol container, particularly adapted for insertion through the top of the container; the piston includes an annular, cylindrical collar near its top end and a conical outwardly flaring flange atop the cylindrical collar, with the flange flaring wider toward the top of the container, whereby the flange scrapes the container interior as it moves up; the cylindrical collar is more flexible than the conical flange to ease insertion of the piston and for more effective piston sealing despite the piston cocking in the container; an anti-cocking ring are provided on the piston.

REFERENCES:
patent: 2371332 (1945-03-01), Jacobson
patent: 3273762 (1966-09-01), O'Neill
patent: 3275200 (1966-09-01), Livingstone
patent: 3381863 (1968-05-01), Towns
patent: 3870200 (1975-03-01), Spatz
patent: 3901416 (1975-08-01), Schultz
patent: 3987941 (1976-10-01), Blessing

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