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

B - Operations, Transporting

67

D

226/63

B67D 7/48 (2010.01) B67D 7/54 (2010.01) F16K 21/20 (2006.01)

Patent

CA 1057247

ABSTRACT OF THE DISCLOSURE 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 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. - i -

271182

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