Radiator caps

Details Radiator caps Radiator caps

1979-07-02

1980-12-30

Shoap, Allan N.

Receptacles

Closures

With condition responsive vent or valve

220303, 220304, 220DIG32, B65D 5116, B65D 5302

Patent

active

042418453

ABSTRACT:
Automobile radiator cap assembly particularly suited to automobiles with coolant recovery systems in which coolant is blown through a venting duct in radiator filler neck. The cap assembly comprises a cap to fit over the upper end of the filler neck, a spring loaded primary element to seal against a ledge at the bottom of the filler neck, and a secondary sealing element having a cylindrical skirt portion extending internally within the filler neck and an annular flange portion projecting between the rim of the filler neck and the cap. A circumferential bead on the skirt engages the wall of the filler neck to provide a circumferential seal within the filler neck above the vent passage and the annular flange is clamped against the rim of the filler neck to provide a further seal.

REFERENCES:
patent: 2147727 (1939-02-01), White et al.
patent: 3053408 (1962-09-01), Rodgers
patent: 3071285 (1963-01-01), Friend
patent: 3127049 (1964-03-01), Welty et al.
patent: 3338455 (1967-08-01), Miller
patent: 3802923 (1974-04-01), Spanur

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