Interlock and latching systems for a dispensing nozzle

Details Interlock and latching systems for a dispensing nozzle Interlock and latching systems for a dispensing nozzle

1976-02-17

1977-07-05

Bell, Jr., Houston S.

Fluent material handling, with receiver or receiver coacting mea

Automatic control of flow cutoff or diversion

Level or overflow responsive

141208, B65B 3100, B67C 334

Patent

active

040333892

ABSTRACT:
An interlock system for use on a conventional gasoline dispensing nozzle with an automatic shut-off system is disclosed. The interlock system includes a valve mounted in the discharge spout and connected to the vent tube so that when the valve is in its open position, the vent tube is open to the inside of the discharge spout. The valve actuation system is designed so that when the nozzle is not properly inserted into the vehicle fillpipe, the valve obtains an open position so that in the event dispensing of gasoline is attempted, the vacuum created in the vent tube by the venturi in the automatic shut-off system causes gasoline which flows down the discharge spout to be drawn into the vent tube, thereby causing the automatic shut-off system to disable the nozzle. The valve actuation system is also designed to act in response to the weight of the nozzle resting on the fillpipe and to provide the latching capability for the nozzle.

REFERENCES:
patent: 3911973 (1975-10-01), Casteline

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