Gas tank cap with roll-over valving

Details Gas tank cap with roll-over valving Gas tank cap with roll-over valving

1975-06-02

1977-01-04

Lowrance, George E.

Receptacles

Closures

With condition responsive vent or valve

220303, 137 43, B65D 5116

Patent

active

040008282

ABSTRACT:
A cap for closing the filler neck of a vehicle fuel tank, the cap comprising a valve housing, a pressure-vacuum valve assembly disposed in the housing to vent the tank when the pressure in the filler neck drops below a predetermined subatmospheric level and when the pressure in the filler neck exceeds a first predetermined superatmospheric level, a roll-over valve for closing the pressure-vacuum valve assembly when the filler neck is tilted, and an excessive pressure valve for bypassing the pressure-vacuum valve when the pressure in the filler neck exceeds a second and greater predetermined superatmospheric level.

REFERENCES:
patent: 1682736 (1928-09-01), Berry
patent: 1893942 (1933-01-01), Jensen
patent: 2396233 (1946-03-01), Abrams
patent: 2732971 (1956-01-01), Holmes et al.
patent: 3304952 (1967-02-01), Krone
patent: 3568695 (1971-03-01), DeFrees
patent: 3724707 (1973-04-01), Burgess
patent: 3757987 (1973-09-01), Marshall

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