Pressure control device with a fluid discharge prevention mechan

Details Pressure control device with a fluid discharge prevention mechan Pressure control device with a fluid discharge prevention mechan

1981-04-01

1983-04-05

Nilson, Robert G.

Fluid handling

Control by change of position or inertia of system

Vent opening or closing on tipping container

1374932, F16K 1736

Patent

active

043788157

ABSTRACT:
A pressure control device with a fluid discharge prevention mechanism such that operation is reliable, size is small, weight is light, and cost is low. The pressure control device according to the present invention comprises a novel valve body housing a weight and a fluid discharge prevention valve together, a vessel body with a tank-communicating port, and a lid with an atmosphere-communicating port. The top circumferential surface of the valve body serves also as a vacuum pressure regulation valve in cooperation with the vessel body.

REFERENCES:
patent: 1893942 (1933-01-01), Jensen
patent: 2016278 (1935-10-01), Ehlers
patent: 2770666 (1956-11-01), Knight
patent: 3738384 (1973-06-01), Hall
patent: 3929158 (1975-12-01), Rodgers
patent: 3970098 (1976-07-01), Boswank et al.
patent: 4299247 (1981-11-01), Keller

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