Timer and control circuit

Details Timer and control circuit Timer and control circuit

1981-03-13

1983-02-15

Wayner, William E.

Combustion

Timer, programmer, retarder or condition responsive control

Of igniter and feed controlled sequence

307605, 431 6, F23N 500

Patent

active

043738982

ABSTRACT:
A timer and control circuit using a field effect transistor that is operated in three different current carrying conditions or operating modes is disclosed. The three operating modes are used to establish two successive timed intervals for a prepurge and a trial for ignition for a fuel burner.

REFERENCES:
patent: 3619097 (1971-11-01), Clay
patent: 3694672 (1972-09-01), Buyak
patent: 4243372 (1981-01-01), Cade

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