Fluent material handling – with receiver or receiver coacting mea – Automatic control of flow cutoff or diversion – Level or overflow responsive
Patent
1989-07-27
1991-01-22
Cusick, Ernest G.
Fluent material handling, with receiver or receiver coacting mea
Automatic control of flow cutoff or diversion
Level or overflow responsive
141392, 141217, 222547, 137504, B65B 300
Patent
active
049863215
ABSTRACT:
A fuel dispensing nozzle for gasoline fuel pumping stations and the like has an inlet through which the fuel is supplied within a range of inlet pressures, an outlet from which fuel is discharged and a flow passage having valving for selectively opening communication between the inlet and the outlet in response to the pressure differential across the valving. The valving includes a housing within which a movable valve member is mounted, the valve member being actuated to open or partially close communication from an inlet of the housing to an outlet of the housing in response to the pressure differential across the valve member. As the pressure differential decreases above the pressure differential corresponding to the predetermined maximum rate, the valve member begins to close communication to prevent the flow from exceeding the predetermined maximum amount, and as the pressure differential increases communication is decreased so that the maximum predetermined flow rate is not exceeded.
REFERENCES:
patent: 2670756 (1954-03-01), Granberg
patent: 4124037 (1978-11-01), Siegwart
patent: 4825916 (1989-05-01), Fink, Jr.
patent: 4844344 (1989-07-01), Munhardt et el.
Manhardt Paul D.
Nitzberg Leonard R.
Cusick Ernest G.
Donovan Edward C.
Ruderman Alan
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