Fuel dispensing nozzle with automatic shut-off responsive to...

Details Fuel dispensing nozzle with automatic shut-off responsive to... Fuel dispensing nozzle with automatic shut-off responsive to...

B - Operations, Transporting

67

D

226/63

B67D 7/42 (2010.01)

Patent

CA 1049983

ABSTRACT OF THE DISCLOSURE: A fuel dispensing nozzle has a diaphragm responsive to vacuum for shutting off the flow of fuel through the nozzle, the diaphragm chamber normally being vented to atmosphere by a tube extending to the mouth of the spout and closable by fuel in the tank being filled to cause vacuum to actuate the diaphragm and shut off the fuel-flow through the nozzle, and a normally open valve in the vent tube, a piston for closing the vent tube valve in response to vapor pressure in the tank being filled, and conduit means providing vapor communication between the piston and the interior of the tank, whereby to shut off the flow of fuel through the nozzle when predetermined vapor pres- sure occurs in the tank being filled.

269069

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