Assembly for controlling the flow of gas for gas fired artificia

Details Assembly for controlling the flow of gas for gas fired artificia Assembly for controlling the flow of gas for gas fired artificia

1994-10-21

1997-01-07

Jones, Larry

Combustion

With simulation feature

431 76, 431 80, F23Q 1300

Patent

active

055910246

ABSTRACT:
An apparatus is provided for controlling the flow of gas for artificial logs. The apparatus includes a main gas burner and a pilot as well as a gas valve which controls the flow of gas to the main burner and to the pilot. The pilot includes a oxygen depletion sensor. A thermal responsive electrical generator is adjacent to the pilot and is connected to the valve. The output voltage of the generator, while under load, is at least 140 millivolts so as to operate the gas valve, which is capable of full automatic operation without the use of an additional electrical source. In addition, the thermal responsive electrical generator is positioned with respect to the pilot so that gas from the pilot will not continue to burn about the generator when the oxygen depletion sensor senses a predetermined low level of oxygen.

REFERENCES:
patent: 4718846 (1980-01-01), Oguri et al.
patent: 4778378 (1988-10-01), Dolnick et al.
patent: 4838240 (1989-06-01), Rieger
patent: 5051089 (1991-09-01), Jayaram
patent: 5181846 (1993-01-01), Chang
Publication--Sourdillon--"Gas Domestic Appliance Controls" (No Date).

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