Electronic trigger assembly for a fuel dispensing nozzle
First Claim
1. An electronic fuel dispensing nozzle assembly for dispensing fuel into a fuel tank, comprising;
- a nozzle housing;
a valve located within said housing, said valve being selectively displaceable between an open position and a closed position;
a trigger assembly including a trigger boss, a slip link and a bellcrank selectively displaceable between a first position and a second position; and
electronic means disposed within said housing for selectively enabling said trigger assembly to selectively open said valve when said trigger boss is displaced from said first position to said second position, said electronic means including a solenoid for providing mechanical enablement of said trigger assembly and further including at least one diode back biasing said solenoid.
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0 Petitions
Accused Products
Abstract
An electronic fuel dispensing nozzle assembly adapted to reduce the undesirable effects of a pure mechanical system by providing an electromechanical fuel dispensing trigger assembly. An electromechanical fuel dispensing trigger assembly includes a valve assembly selectively displaceable between an open and a closed position and a trigger assembly selectively displaceable between a first position and a second position. Electronic elements are provided to selectively enable the trigger assembly to selectively open the valve when displaced from the first position to the second position. Furthermore, the electronic elements can also inhibit the trigger assembly, such that motion of the trigger assembly from the first position to the second position does not cause the valve assembly to be displaced from the closed position to the open position.
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Citations
16 Claims
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1. An electronic fuel dispensing nozzle assembly for dispensing fuel into a fuel tank, comprising;
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a nozzle housing; a valve located within said housing, said valve being selectively displaceable between an open position and a closed position; a trigger assembly including a trigger boss, a slip link and a bellcrank selectively displaceable between a first position and a second position; and electronic means disposed within said housing for selectively enabling said trigger assembly to selectively open said valve when said trigger boss is displaced from said first position to said second position, said electronic means including a solenoid for providing mechanical enablement of said trigger assembly and further including at least one diode back biasing said solenoid. - View Dependent Claims (2, 3, 4, 5)
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6. An electronic fuel dispensing nozzle assembly for dispensing fuel into a fuel tank, comprising:
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a nozzle housing; a valve located within said housing, said valve being selectively displaceable between an open position and a closed position; a trigger assembly including a trigger boss, a slip link and a bellcrank selectively displaceable between a first position and a second position; and electronic means disposed within said housing for selectively enabling said trigger assembly to selectively open said valve when said trigger boss is displaced from said first position to said second position, said electronic means including a solenoid for providing mechanical enablement of said trigger assembly and a transistor for selectively enabling current to flow through said solenoid. - View Dependent Claims (7, 8, 9)
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10. An electronic fuel dispensing nozzle assembly for dispensing fuel into a fuel tank, comprising:
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a nozzle housing; a valve located within said housing, said valve being selectively displaceable between an open position and a closed position; a trigger assembly including a trigger boss, a slip link and a bellcrank selectively displaceable between a first position and a second position; electronic means disposed within said housing for selectively enabling said trigger assembly to selectively open said valve when said trigger boss is displaced from said first position to said second position; said slip link being coupled to said trigger boss, and said bellcrank being selectively engaged by said slip link, and further including a push rod coupled to said bellcrank for selectively opening said valve. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An electronic fuel dispensing nozzle assembly for dispensing fuel into a fuel tank, comprising:
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a nozzle housing; a valve located within said housing, said valve being selectively displaceable between an open position an a closed position; a trigger assembly including a trigger boss, a slip link and a bellcrank selectively displaceable between a first position and a second position, said slip link being coupled to said trigger boss, and said bellcrank being selectively engaged by said slip link; electronic means disposed within said housing for selectively enabling said trigger assembly to selectively open said valve when said trigger boss is displaced from said first position to said second position, said electronic means including solenoid means for providing mechanical enablement of the trigger assembly; wherein said slip link includes a ramp surface and said bellcrank includes a pin, and said solenoid means selectively applies pressure to said slip link, so that said ramp surface of said slip link engages said pin of said bellcrank when said solenoid applies pressure to said slip link; and wherein said bellcrank is coupled to a push rod for selectively engaging said valve when said solenoid applies pressure to said slip link.
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Specification