Receptacles – Closures – With condition responsive vent or valve
Patent
1975-06-09
1977-07-05
Price, William
Receptacles
Closures
With condition responsive vent or valve
137 43, 220303, B65D 5116
Patent
active
040334759
ABSTRACT:
In a vented cap for closing the filler neck of a liquid containing tank, the cap including a valve housing providing a venting passageway extending therethrough, the improvement comprising a roll-over valve member for closing the passageway when the filler neck is tilted. The valve housing provides a valve seat in the passageway facing inwardly and against which the valve member moves. The housing also provides a tubular portion extending inwardly from the valve seat, the valve member being moveable in that portion between a position in closing engagement with the seat and a position away from the seat. The tubular portion is provided with at least one vent port located between the positions of the valve member, the port being of a size sufficient readily to pass vapor therethrough and insufficient readily to pass liquid therethrough. When liquid enters the port from the tank, a pressure differential is created to drive the valve member into its closing position.
REFERENCES:
patent: 761364 (1904-05-01), Doriot
patent: 2113454 (1938-04-01), Mitchell
patent: 2351177 (1944-06-01), Younkman
patent: 3083862 (1963-04-01), Bowden
patent: 3084706 (1963-04-01), Lunde
patent: 3757987 (1973-09-01), Marshall
patent: 3825147 (1974-06-01), Noponen et al.
Price William
Shoap Allan N.
Stant Manufacturing Company, Inc.
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