Valve system for a vapor receiving system on a dispensing nozzle

Details Valve system for a vapor receiving system on a dispensing nozzle Valve system for a vapor receiving system on a dispensing nozzle

1976-03-08

1977-09-20

Bell, Jr, Houston S.

Fluent material handling, with receiver or receiver coacting mea

Automatic control of flow cutoff or diversion

Level or overflow responsive

141303, B65C 302

Patent

active

040490297

ABSTRACT:
A valve system for the vapor receiving system of a gasoline dispensing nozzle which acts to prevent the flow of liquid gasoline into the vapor return line in the event that the automatic shut-off system of the nozzle fails to turn the nozzle off. The valve system has a valve seat located at the point where the vapor return line connects to the vapor receiving system and a floating member suspended below the valve seat in such a manner that when the vapor receiving chamber fills with gasoline, the floating member covers the valve seat so that no gasoline flows back through the vapor return line. A shield can also be provided to prevent closure of the floating member by the normal flow of vapors.

REFERENCES:
patent: 2330616 (1943-09-01), Parker
patent: 2771917 (1956-11-01), Cannell
patent: 3732902 (1973-05-01), Muller

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