Sequential ignition system for oxygen generation elements

Details Sequential ignition system for oxygen generation elements Sequential ignition system for oxygen generation elements

1977-06-10

1978-09-19

Tayman, Jr., James H.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

Control element is fluid pressure sensitive

423281, 102 39, 422166, B01J 700

Patent

active

041150694

ABSTRACT:
Three chlorate candles are connected to a common conduit to which a normally open pressure switch is connected on the downstream side. The switch closes in response to a flow rate less than its predetermined minimum magnitude of oxygen from each candle flowing through the conduit. The pressure switch and one thermal switch for each candle except the last one are serially interconnected across a DC source through a resistor. When that candle first ignited is weakened in generation of oxygen, the next candle is ignited with the closure of the two serially connected switches and through the resulting heating of the associated resistor. The third candle is similarly ignited.

REFERENCES:
patent: 3436191 (1969-04-01), McGoff et al.
patent: 3561900 (1971-02-01), Walbridge
patent: 3573001 (1971-03-01), Bovard

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