Automatic shut-off nozzle having controlled venturi

Details Automatic shut-off nozzle having controlled venturi Automatic shut-off nozzle having controlled venturi

1977-03-25

1979-02-13

Aegerter, Richard E.

Fluent material handling, with receiver or receiver coacting mea

Automatic control of flow cutoff or diversion

Level or overflow responsive

B65B 5714

Patent

active

041390318

ABSTRACT:
An automatic shut-off nozzle has a venturi effect, which causes automatic shut off of the liquid flow through the nozzle body by causing a main poppet valve to be closed when the tank is filled, created by two aligned passages of different diameters in either the resiliently biased bleeder poppet valve, which opens in response to the pressure of the fluid flowing through the nozzle body, or the seat ring for the bleeder poppet valve. The smaller diameter passage has the liquid enter its inlet with the liquid exiting through the outlet of the larger diameter passage with the larger diameter passage also communicating with the vacuum chamber in which the vacuum is increased by the venturi when the tank is filled to cause automatic closing of the main poppet valve in the nozzle body.

REFERENCES:
patent: 3521681 (1970-07-01), Wilson

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