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US 4,049,159 AGranted
Hand drive for blending-type gasoline dispenser
AssigneeDresser Industries, Inc.
InventorsJohn Arnold Todd, George Edward Chevallier
Life of this patent
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AssigneeDresser Industries, Inc.
InventorsJohn Arnold Todd, George Edward Chevallier
Estimating the term…
A hand drive for manually operating a blender-type gasoline dispenser in the event of power disruption, including a crank operated shaft mounted for rotation and which is axially presettable relative to the pump drives for selectively operating either or both of the dispenser pumps. Laterally extending from the shaft are a pair of spaced pins for rotatably coupling the shaft with the drive sheave of the selected pump or pumps. Presetting the shaft axially with the pins in a first position rotatably couples the shaft via one of the pins to one sheave for high octane dispensing while the other pin and respective sheave remain disengaged. Setting the shaft in a second position rotatably couples the shaft via the other of the pins to the second sheave for low octane dispensing while the first pin and respective sheave remain disengaged. A third setting of the shaft intermediate between the first and second positions couples both sheaves for simultaneously operating both pumps to effect a dispensing of blended high and low octane fuels.
In a motor driven blender-type gasoline dispenser including a first motor driven pump adapted for operable connection to a first source of low octane level gasoline for dispensing, a second motor driven pump adapted for operable connection to a second source of relatively high octane level gasoline for dispensing and blender means operative to simultaneously actuate both motors of said pumps for dispensing a blended mixture of the gasolines from each of said sources, the improvement which comprises a hand drive for manually operating said dispenser comprising in combination an operating shaft mounted for hand driven rotation, drive means drive connected individually with each of said pumps and selection means presettable to selectively connect said drive means with said operating shaft for optionally actuating said first pump alone, said second pump alone or said first and second pumps simultaneously.
Dependencies are inferred from the claim text.