Single valve aspiration type sprayer

Details Single valve aspiration type sprayer Single valve aspiration type sprayer

1991-03-18

1992-03-31

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Including supply holder for material

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

239318, 222484, B05B 726, B05B 730

Patent

active

051000598

ABSTRACT:
An 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 holding chemicals such as pesticides or fertilizers. A unitary valve in the sprayer head assembly control carrier fluid flow from a pressurized source of water while simultaneously providing a controlled aspiration rate and full communication of the container interior to atmospheric pressure. The valve additionally includes simultaneous closure of the carrier fluid, aspiration and vent passageways so as to seal the chemical in the container when the sprayer is not being used.

REFERENCES:
patent: 3770205 (1973-11-01), Proctor et al.
patent: 4583688 (1986-04-01), Crapser
patent: 4653691 (1987-03-01), Grime
patent: 4750674 (1988-06-01), Chow et al.
patent: 4767058 (1988-08-01), La Rosa et al.
patent: 5007588 (1991-04-01), Chow et al.

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