Fuel tank cap for motor vehicle

Details Fuel tank cap for motor vehicle Fuel tank cap for motor vehicle

1981-04-30

1983-06-28

Shoap, Allan N.

Receptacles

Closures

With condition responsive vent or valve

137 43, 220210, 220303, B65D 5116, B65D 5514

Patent

active

043901077

ABSTRACT:
A fuel tank cap for use in a motor vehicle including a cap body having a path communicating the interior of a fuel tank with the atmosphere and having incorporated therein a sensor valve unit. The sensor valve unit includes a valve housing having an upper wall with a first through-opening therein open to the path for communication with the atmosphere, a peripheral wall with a second through-opening at a predetermined position which is open to the housing interior and communicates with the fuel tank interior, an upright funnel shaped bottom wall, a weight ball movably positioned on the bottom wall, and a valve body resting on the weight ball so as to be moved upwards for closing the first through-opening when the weight ball rolls over the bottom wall and thereby carries out an upward movement.

REFERENCES:
patent: 2396233 (1946-03-01), Abrams
patent: 2757223 (1956-07-01), Duncan
patent: 3614960 (1971-10-01), Pfrensk
patent: 3757987 (1973-09-01), Marshall
patent: 3768498 (1973-10-01), Urban
patent: 3996951 (1976-12-01), Parr et al.
patent: 4053083 (1977-10-01), Hukuta

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