Automatic air inlet and outlet valve assembly

Details Automatic air inlet and outlet valve assembly Automatic air inlet and outlet valve assembly

1979-02-23

1980-12-16

Cline, William R.

Fluid handling

Systems

System with plural openings, one a gas vent or access opening

251144, F16K 2400

Patent

active

042390591

ABSTRACT:
In accordance with the present invention an air inlet and outlet valve is disclosed which automatically opens and closes when a bottom operable tank lading valve is opened and closed. The air valve is mounted adjacent the top of the tank and is in fluid communication by means of a conduit with an opening in the tank. The air valve is automatically opened and closed when the lading valve opens and closes by means of an air valve linkage including an operating shaft which extends from the lading valve up through the tank to operate the air valve. The air valve is located in a chamber in the upper portion of the tank and seats on a valve seat located in the lower portion of the chamber.

REFERENCES:
patent: 737941 (1903-09-01), Leithauser
patent: 1877418 (1932-09-01), Greer
patent: 1894655 (1933-01-01), Auchincloss
patent: 2721577 (1955-10-01), Esselman
patent: 3115894 (1963-12-01), Marx

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