Temperature regulated dual pressure device

Details Temperature regulated dual pressure device Temperature regulated dual pressure device

1984-01-19

1984-12-25

Shoap, Allan N.

Automatic temperature and humidity regulation

Thermostatic

With pressure control

220201, 220202, 220203, 220303, 220DIG32, 236 61, B65D 5116, F16K 2404, G05D 1600

Patent

active

044898835

ABSTRACT:
A temperature regulated dual pressure radiator cap for an engine coolant system is disclosed having a temperature actuated valve that operates to normally open a large pressure responsive valve area to the coolant pressure below a predetermined coolant temperature and close communication therewith thereabove while then exposing the coolant pressure to a small pressure responsive valve area whereby the coolant pressure required for blow off is higher at coolant temperatures above such temperature.

REFERENCES:
patent: 2333993 (1943-11-01), Frailing
patent: 2415475 (1947-02-01), Eshbaugh
patent: 2535974 (1950-12-01), Watkins, Jr.
patent: 2732971 (1956-01-01), Holmes et al.
patent: 3047235 (1962-07-01), Eshbaugh et al.

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