Bottom operable air inlet and outlet valve

Details Bottom operable air inlet and outlet valve Bottom operable air inlet and outlet valve

1976-09-30

1978-09-19

Cline, William R.

Fluid handling

Control by change of position or inertia of system

Vent opening or closing on tipping container

137587, F16K 1736

Patent

active

041146360

ABSTRACT:
An air inlet and outlet valve is located in the bottom of a tank so that the operator need not climb to the top of the tank to operate the valve. A conduit extends from the valve to the top of the tank. A stilling well is mounted inside the top of the tank. A ball which is lighter than the lading is mounted in the stilling well. The stilling well includes openings allowing air to enter or leave the tank through the conduit when the ball is in an unseated position in the stilling well. Lading contacting the ball moves the ball into a seated position which blocks the entrance to the conduit and prevents lading from entering the conduit, going down through the conduit to the valve at the bottom of the tank, and discharging from the conduit when the operator opens the valve.

REFERENCES:
patent: 1053344 (1913-02-01), Asbury
patent: 1587864 (1926-06-01), Sargent
patent: 1662614 (1928-03-01), Mandolini
patent: 1699527 (1929-01-01), Folmsbee
patent: 2104461 (1938-01-01), Holm
patent: 2460159 (1949-01-01), White
patent: 2510098 (1950-06-01), Geisler
patent: 2528600 (1950-11-01), Lombard
patent: 2646817 (1953-07-01), Cox et al.
patent: 2664911 (1954-01-01), Thompson et al.
patent: 2751755 (1956-06-01), Fowler
patent: 3661355 (1972-05-01), Rawstron
patent: 3675679 (1972-07-01), Schwartz, Jr.

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