Fluent material handling – with receiver or receiver coacting mea – With signal – indicator – recorder – inspection means or exhibitor – Level or pressure in receiver
Patent
1992-08-07
1994-01-04
Jacyna, J. Casimer
Fluent material handling, with receiver or receiver coacting mea
With signal, indicator, recorder, inspection means or exhibitor
Level or pressure in receiver
141198, 137393, 137558, 116109, 116227, 116283, 73290R, F16K 2120
Patent
active
052752160
ABSTRACT:
An add-on liquid overflow shut-off valve for a tank. The device is used to ensure that a holding tank is not overfilled and provides a fail safe way to prevent spillage when pumping into a holding tank. The device provides a warning indicator when the holding tank is near full. The device also has a fail safe switch which will turn off air to a pump when the holding tank is full and also blow a whistle to indicate the tank is full. The device uses a diaphragm which operates on a pressure differential. When the pressure is increase past a spring set point, the diaphragm raises a plate that activates a switching valve which shuts off air supply to an air pump and blows a whistle.
REFERENCES:
patent: 2853041 (1958-09-01), Oakes
patent: 2888171 (1959-05-01), Turner
patent: 4191208 (1980-03-01), Mylander
patent: 4292996 (1981-10-01), Pataki et al.
patent: 4445456 (1984-05-01), Nelson
patent: 4454760 (1984-06-01), Carlisle
patent: 4654643 (1987-03-01), Meisenheimer, Jr.
patent: 5007450 (1991-04-01), Babb et al.
patent: 5069243 (1991-12-01), Foreman
Bolger Donald C.
Jacyna J. Casimer
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