Self-cleaning, isolated product, aerosol spray atomizing valve

Details Self-cleaning, isolated product, aerosol spray atomizing valve Self-cleaning, isolated product, aerosol spray atomizing valve

1981-05-26

1983-09-20

Scherbel, David A.

Dispensing

With cleaning means

22240217, 22240218, 22240224, 222136, B65D 8300, B65D 8314

Patent

active

044050640

ABSTRACT:
This disclosure relates to a manually operated, self-cleaning, aerosol valve that has separate control elements for propellant fluid and product fluid. The valve is adapted to maintain internal separation of the fluids. Even when the fluids are codispensed to produce a fine mist, separation of the propellant from the product is maintained until the fluids are beyond control elements. Control elements also maintain internal separation of the fluids when the valve is actuated for purging. This is achieved by keeping the fluid product control element closed while the propellant control element is open. With the control elements so positioned, cleaning fluid can be directed to purge all passageway surfaces that are exposed to external air. This type of valve is particularly suited for dispensing viscous products, such as water-borne paints.

REFERENCES:
patent: 3469744 (1969-09-01), Corsette
patent: 3495744 (1970-02-01), Webster
patent: 3497112 (1970-02-01), Samuelson
patent: 3525456 (1970-08-01), Prussin et al.
patent: 3606963 (1971-09-01), Marand

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