Combustion – Timer – programmer – retarder or condition responsive control
Patent
1995-02-08
1996-04-02
Dority, Carroll B.
Combustion
Timer, programmer, retarder or condition responsive control
362431, 137 784, 431 86, F23N 500
Patent
active
055035493
ABSTRACT:
A turn down device for regulating gas flow within a gas lamp that is of the general type having a lamp post and a mantel. The device has a conduit configured to allow gas to flow therethrough and a gas supply line connected to the conduit for supplying gas under pressure. A poppet valve having a valve seat and a magnetic poppet is provided along the conduit downstream of where the supply line connects to the conduit. A solar cell is connected to the electromagnet that generates and provides to the electromagnet a voltage which varies depending upon sunlight at the solar cell. The popper is fabricated so as to have a selected size, shape and mass such that the gas flow from the supply line lifts the poppet away from the valve seat absent attractive forces induced at an electromagnet provided proximate the valve. As varying amounts of sunlight are directed upon the solar cell, electricity travels to the windings of the electromagnet that induces an attractive electromagnetic force upon the valve. The electromagnetic force biases the valve a respective amount towards a closed position, thereby reducing gas flow through the valve. The device further includes a bypass supply line for providing a pilot flow of gas from the gas supply line to the conduit. A bypass valve is provided on the bypass supply line for adjusting the flow of gas through the bypass supply line so that a pilot flow of gas is maintained to the mantel when the valve is in the fully closed position.
REFERENCES:
patent: 3330313 (1967-07-01), Kniebes
patent: 3723045 (1973-03-01), Reese
patent: 4830606 (1989-05-01), Dillinger
Dority Carroll B.
Pugh Robert J.
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