Control circuit for an air cleaner

Details Control circuit for an air cleaner Control circuit for an air cleaner

1987-09-10

1988-12-20

Prunner, Kathleen J.

Gas separation

With nonliquid cleaning means for separating media

Solid agent cleaning member movingly contacts apparatus

55270, 55271, 55274, 55467, 55DIG34, B01D 4646

Patent

active

047923458

ABSTRACT:
A control circuit for an air cleaner including a gas sensor, an ultraviolet sensor and a control circuit for performing an automatic operation of the air cleaner in response to the detection of outputs of the sensors. A predetermined number of electrical pulses from the ultraviolet sensor are observed by the control circuit during a first predetermined time period after the passage of a second predetermined time period from a point of time when an initial pulse from the ultraviolet sensor has been inputted to the control circuit, the control circuit identifies the predetermined number of the pulses as a drive signal for initiating the operation of the air cleaner.

REFERENCES:
patent: 2533339 (1950-12-01), Willenborg
patent: 3237375 (1966-03-01), Schwarz et al.
patent: 3516232 (1970-06-01), Gilbertson
patent: 3950155 (1976-04-01), Komiyama
patent: 4119419 (1978-10-01), Passaro et al.
patent: 4177045 (1979-12-01), Orel
patent: 4244712 (1981-01-01), Tongret

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