Non-propellant, duration spray dispenser with positive shut off

Details Non-propellant, duration spray dispenser with positive shut off Non-propellant, duration spray dispenser with positive shut off

1978-07-24

1980-09-16

Spar, Robert J.

Dispensing

Resilient wall

Supply container delivering to receiving chamber

137510, 13761419, 222321, 222380, 222383, 222499, B05B 1102

Patent

active

042225000

ABSTRACT:
A non-propellant operated, duration spray dispenser includes structure for mechanically pressurizing the material to be dispensed by pumping it into an expansible bulb for storage under pressure for subsequent dispensing of the material, and a snap-acting positive shut off valve is provided to terminate discharge of the material when pressure falls below a predetermined minimum.

REFERENCES:
patent: 3658209 (1972-04-01), Freeman et al.
patent: 3777945 (1973-12-01), Nozawa et al.
patent: 3921861 (1975-11-01), Kondo
patent: 3923250 (1975-12-01), Boris
patent: 4088425 (1978-05-01), Bennett

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