Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Patent
1992-10-23
1993-08-17
Wayner, William E.
Gas separation
With nonliquid cleaning means for separating media
Solid agent cleaning member movingly contacts apparatus
236 94, 364569, B01D 1900, G05D 2300
Patent
active
052364771
ABSTRACT:
A microcomputer-based control device for an air conditioner to which a replaceable air filter is attached includes a DC power supply section for converting an AC voltage to a DC voltage, an air-conditioning control unit connected to the DC power supply and including a microcomputer, a control unit resetting circuit for delivering an initial reset signal to the control unit when a voltage to be supplied to the control unit from the DC power supply section has risen to a value at which the control unit is operable, an operation section connected to the air-conditioning control unit for setting an operating condition of the control unit, a non-volatile memory connected to the control unit so that data of a cumulative air-conditioning operation time period stored in the control unit is written into and read out of the non-volatile memory, a display for displaying an image indicative of a replacing time of the air filter when the cumulated airconditioning operation time period has reached a predetermined time period, and a voltage drop detector connected between the control unit and the DC power supply section for detecting the output voltage of the DC power supply section dropped to a predetermined level or below to deliver a data write command signal to the control unit so that it is operated in response to the data write command signal to write the data into the non-volatile memory.
REFERENCES:
patent: 5019996 (1991-05-01), Lee
patent: 5131932 (1992-07-01), Glucksman
Kabushiki Kaisha Toshiba
Wayner William E.
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