Receptacles – Closures – With condition responsive vent or valve
Patent
1974-10-30
1976-07-13
Schwadron, Martin P.
Receptacles
Closures
With condition responsive vent or valve
137525, 1374939, F16K 1718
Patent
active
039688976
ABSTRACT:
A safety-pressure-vacuum relief valve assembly for vehicle fuel tanks and the like which is adapted either to be mounted at an external point on the vehicle and connected to the interior of the tank by a conduit or to be a part of the cap for the conventional tank filler neck. The assembly comprises a fitting having an upwardly facing annular flange area concentric with the axis of the fitting, a circular plate concentrically resting on the flange, an inverted cup providing a peripheral skirt having a concentric and peripherally extending shoulder above the flange, the cup and fitting being secured against axial separation to capture the said plate therebetween, and an annular flexible gasket having an outer peripheral portion gripped between the plate and the shoulder of the cup and an inner peripheral bead engaging the upper surface of the plate normally to close pressure relief openings in the plate. A spring loaded valve plate urges the radially inward portion of the gasket against the upper surface of the plate. The center of the plate is provided with a vacuum valve opening extending therethrough which is normally closed by a vacuum valve member. The fitting is either connected to the interior of the tank by means of a flexible conduit or the fitting is firmly engaged by the skirt of a filler cap outer shell, in which case the fitting provides an opening through which the valve assembly communicates with the interior of the tank.
REFERENCES:
patent: 1563144 (1925-11-01), Baker
patent: 2423281 (1947-07-01), Aspelin
patent: 2460397 (1949-02-01), Roth
patent: 2986159 (1961-05-01), Snyder
patent: 3032060 (1962-05-01), Huffman
patent: 3403696 (1968-10-01), Pynchon
patent: 3439873 (1969-04-01), Rolf
patent: 3706362 (1972-12-01), Faure
Miller Robert J.
Schwadron Martin P.
Stant Manufacturing Company, Inc.
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