Single probe low water control

Details Single probe low water control Single probe low water control

1981-05-04

1982-11-23

Griffin, Donald A.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

340620, G08B 2100, G01F 2300

Patent

active

043607381

ABSTRACT:
A timer means having a time delay on reapplication of control allows a single probe low water cutoff and feedwater makeup device to function. The time delay preventing reapplication of power to a burner while simultaneously causing a feedwater mechanism to add water to a boiler provides safe operation of the boiler without oscillations caused by momentary losses of water.

REFERENCES:
patent: B451396 (1976-04-01), Nurnberg
patent: 3457464 (1969-07-01), Wallentowitz
patent: 3555289 (1971-01-01), Sobkow
patent: 3641544 (1972-02-01), Radin
patent: 3892982 (1975-07-01), Holmes
patent: 4027172 (1977-05-01), Hamelink
patent: 4110740 (1978-08-01), Akita et al.
patent: 4263587 (1981-04-01), John

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