Aerosol assembly for signalling depletion of a preselected amoun

Details Aerosol assembly for signalling depletion of a preselected amoun Aerosol assembly for signalling depletion of a preselected amoun

1983-01-06

1984-10-09

Rolla, Joseph J.

Dispensing

With recorder, register, indicator, signal or exhibitor

Audible

22240219, 222464, 239342, B67D 532, B65D 8306

Patent

active

044756674

ABSTRACT:
Disclosed herein is an aerosol assembly which may be used inverted and upright and which, when used in the inverted position, will automatically provide an audible signal that a preselected amount of the container contents has been depleted. A valve body defining a hollow interior and a base has a hollow diptube operatively connected to the valve body interior and reaching at its lower end to the bottom of an associated aerosol container. A moveable valve stem is provided for placing the valve body interior in communication with the exterior of the aerosol container. A liquid level spray control is provided. The control comprises a hollow tube connected to the valve body and surrounding the diptube. The hollow tube defines an opening below the valve body base. The opening defines an open flow path from the container interior to the valve body interior. The hollow tube extends downwardly from the valve body base and is positioned no closer to the valve body base than 20% of the distance between the base and the diptube lower end and no closer to the diptube lower end than 80% of the distance between the base and the diptube lower end. The opening is in open flow communication with the valve body interior when the aerosol container and associated valve assembly are in each of their inverted and upright positions.

REFERENCES:
patent: 2924360 (1960-02-01), Samuel
patent: 3601317 (1971-08-01), Genantonio
patent: 3647119 (1972-03-01), Samuelson
patent: 3893596 (1975-07-01), Beres et al.
patent: 4211347 (1980-07-01), Mildern

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