F - Mech Eng,Light,Heat,Weapons – 26 – B
Patent
F - Mech Eng,Light,Heat,Weapons
26
B
341/11
F26B 21/08 (2006.01) D06F 58/28 (2006.01) F26B 25/00 (2006.01) G05D 22/02 (2006.01)
Patent
CA 1173132
PA-5111-0-DR-USA LOW VOLTAGE SENSOR FOR DRYER ABSTRACT OF THE DISCLOSURE A fabric treating apparatus, such as a domestic clothes dryer, is provided with a microcomputer controlled circuit and a sensor system which cooperates to terminate a fabric treatment operation when the fabric reaches the desired condition. A conductivity sensor senses the moisture content of the fabric within the drying zone. A sensing circuit electrically connected to the sensor generates a voltage level proportional to the moisture condition sensed. The microcomputer reads the voltage level at spaced intervals in time and generates a valid wet signal whenever a given consecutive number of readings indicate a wet condition of the fabric within the drying zone. A counter within the microcomputer counts pulses from a source of timing signals and is repeatedly terminated and restarted whenever a valid wet signal is generated. The fabric drying operation is terminated upon the accumulation of a preselected count in the counter such that the termination coincides with an optimum dryness condition.
393378
Deschaaf Clifford L.
Getz Edward H.
Corporation Whirlpool
Kirby Eades Gale Baker
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