Receptacles – Closures – Vent in closure
Patent
1977-08-11
1978-09-12
Price, William
Receptacles
Closures
Vent in closure
220 86R, 220375, 220360, 220361, B65D 300, B65D 5116, B65D 5516
Patent
active
041131380
ABSTRACT:
Disclosed herein is a cap for a liquid tank having a filler neck, such as a fuel tank for an outboard motor, which cap includes a hollow body having a top wall portion for closing the filler neck and a depending annular flange for releasably engaging the filler neck. The interior of the tank is vented to the atmosphere through one or more vent ports located in the top wall portion and the vent port(s) is selectively opened and closed by a closure member including a shank threadably mounted on the top wall portion and a cover portion for opening and closing the vent port when the closure member is turned in opposite directions. A dish-shaped baffle disposed inside the cap body in spaced relationship to the top wall portion serves a baffle to minimize spillage of fuel through the vent port(s) and also defines a chamber for collecting fuel which otherwise might leak through the vent port(s) and for draining the collected fuel back into the fuel tank when the motor or tank is in an upright operating position.
In one embodiment, unintentional complete detachment of the cap from the fuel tank is prevented by a cap retainer including an elongated stem having an upper end connected to the inner end of the closure member shank and a transversely extending member having a length greater than the inside dimension of the filler neck and connected to the lower end of the stem. All of the parts of the cap, except the diaphragm, preferably are molded from a synthetic thermoplastic material.
REFERENCES:
patent: 1735132 (1929-11-01), Schlaich
patent: 3064668 (1962-11-01), Alkire et al.
patent: 3317079 (1967-05-01), Ferrell et al.
patent: 3715049 (1973-02-01), McMullen et al.
Fields Ernest E.
Reineck Lester W.
Outboard Marine Corporation
Pollard Steven M.
Price William
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