Receptacles – Closures – With condition responsive vent or valve
Patent
1992-07-31
1993-09-28
Shoap, Allan N.
Receptacles
Closures
With condition responsive vent or valve
220203, 220DIG32, 123 4154, B65D 5116
Patent
active
052480526
ABSTRACT:
An apparatus for releasing superatmospheric pressure in an engine cooling system when the engine is turned off and maintaining the cooling system at atmospheric pressure whenever the engine is not running is disclosed. The apparatus comprises a radiator cap having an over pressure valve for releasing excess pressure during engine operation and a suction return valve, or coolant recovery valve, for allowing coolant in a coolant recovery tank to be returned to the radiator and cooling system by a vacuum condition within the cooling system. The apparatus further comprises a push rod that penetrates the top of the radiator cap and reciprocates within a vertical sleeve seated in the center of the top of the radiator cap to open the suction return valve when the engine is not running, that is, the push rod is in the down position, and moves into an up position to allow the suction return valve to close, when the engine is running. In the preferred embodiment, the push rod is controlled by a vacuum motor, which operates on the ordinary engine vacuum, in a housing on top of the radiator cap. In an alternative embodiment, the push rod is controlled by an electrical solenoid that is energized whenever the engine is running, and is de-energized when the engine is not running. The push rod itself operates in the same fashion in either embodiment.
REFERENCES:
patent: 2591562 (1952-04-01), Levell
patent: 3062400 (1962-11-01), Humbert
patent: 3587912 (1971-06-01), Nagoya et al.
patent: 4079855 (1978-03-01), Avrea
patent: 4185751 (1980-01-01), Moore et al.
patent: 4196822 (1980-04-01), Avrea
patent: 4484541 (1984-11-01), Yokoyama
patent: 4744356 (1988-05-01), Miller
Henry Larry J.
Mellinger Larry L.
Iles Kenneth W.
Shoap Allan N.
Stucker Nova
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