Aspiration-type chemical sprayer

Details Aspiration-type chemical sprayer Aspiration-type chemical sprayer

1990-01-23

1991-08-13

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Including supply holder for material

To be mixed, dissolved or entrained in a flowing liquid...

239318, 222484, 222554, B05B 730

Patent

active

050390163

ABSTRACT:
An improved aspiration-type chemical sprayer for dispensing small quantities of a liquid-based chemical into a stream of carrier fluid is disclosed. The sprayer includes a sprayer head assembly sealingly mounted onto a container for storing the chemical to be dispensed. The sprayer head assembly includes a multi-function unitary valve for providing a range of aspiration rates simultaneously with full communication of the container interior to atmospheric pressure. The valve may include means for positive and simultaneous closure of the aspiration and vent passages so as to seal the chemical in the container when the sprayer is not in use.

REFERENCES:
patent: 2837374 (1958-06-01), Lipman
patent: 3186643 (1965-01-01), George et al.
patent: 4750764 (1988-06-01), Chow et al.

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