Drying and gas or vapor contact with solids – Process – Gas or vapor contact with treated material
Patent
1998-09-18
2000-05-02
Bennett, Henry
Drying and gas or vapor contact with solids
Process
Gas or vapor contact with treated material
F26B 334
Patent
active
060557443
ABSTRACT:
A method for detecting impermissible operating states in electronically controlled tumble dryers, in particular the state of motion of a laundry drum. In the method, the electrical conductivity of the laundry is determined by electrodes which touch the laundry, at least from time to time. The method is distinguished by the fact that, during the drying operation, the conductivity is periodically measured. The currently measured conductivity value is compared with at least one previously measured conductivity value and, if changes in conductivity that are determined from the compared values over a multi-period interval corresponds to a preset low range of fluctuation, an indication is given that the laundry drum is stationary.
REFERENCES:
patent: 5755041 (1998-05-01), Horwitz
Krausch Uwe-Jens
Schulz Manfred
Bennett Henry
BSH Bosch und Siemens Haus-geraete GmbH
Cadalso Alein
Greenberg Laurence A.
Lerner Herbert L.
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