Self-cleaning non-return drainage valve

Details Self-cleaning non-return drainage valve Self-cleaning non-return drainage valve

1976-02-27

1977-11-22

Schwadron, Martin P.

Fluid handling

With cleaner, lubrication added to fluid or liquid sealing...

Cleaning or steam sterilizing

137388, 137433, E04H 1300, F16K 5100

Patent

active

040591271

ABSTRACT:
A non-return drainage valve adapted for use with a container for drainage of fluids from the container through the valve and for prevention of the passage of liquid into the container, the valve including a buoyant plug member and probe means movable with the plug member for clearing debris from the valve.

REFERENCES:
patent: 1469963 (1923-10-01), Sartakoff
patent: 2614885 (1952-10-01), Roell et al.
patent: 3542059 (1970-11-01), Blanchard et al.

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