Receptacles – Closures – With condition responsive vent or valve
Patent
1976-06-01
1978-03-21
Lowrence, George E.
Receptacles
Closures
With condition responsive vent or valve
220361, 220367, 137493, B65D 5116, F16K 1726
Patent
active
040798550
ABSTRACT:
A monolithic radiator cap comprising a minimal number of inexpensive constituent parts engages the filler neck of an automotive cooling system. A valving gasket is normally held against the sealing surface of the filler neck by a spring which is responsive to thermal expansion of the cooling medium for controlled fluid flow out of the system. A seal is carried by the cap to engage the interior wall of the filler neck and hermetically seal the filler neck. The seal is maintained during the working and vent positions of the cap. Alternately, the cap includes auxiliary valving means for controlling fluid flow into the system in response to thermal contraction of the cooling medium.
REFERENCES:
patent: 3164288 (1965-01-01), Boomgaard
patent: 3381846 (1968-05-01), Lee
patent: 3463346 (1969-08-01), Mitchell
patent: 3831801 (1974-08-01), Rodgers
patent: 3937357 (1976-02-01), Burgess
Flickinger Don J.
Lowrence George E.
Pollard Steven M.
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