Textiles: fluid treating apparatus – Machines – Single tub and automatic sequential operation mechanism
Reexamination Certificate
2007-04-03
2007-04-03
Perrin, Joseph L. (Department: 1746)
Textiles: fluid treating apparatus
Machines
Single tub and automatic sequential operation mechanism
C068S012270, C068S023100
Reexamination Certificate
active
10716436
ABSTRACT:
A washing machine having a dual-purpose sensor capable of detecting a degree of vibration generated during a dewatering step as well as measuring detergent levels present in the water. The washing machine having a sensor unit installed with respect to an outer tub for holding water. The washing machine includes a microcomputer having an input port receiving an applied voltage, the input port electrically connected to a supply voltage; first and second electrodes, installed so as to be submerged in the water of the outer tub, wherein the first electrode is electrically connected to the supply voltage and the second electrode is electrically connected to ground, to thereby generate the applied voltage for input to the input port of the microcomputer; a spherical conductor disposed adjacent to the electrodes; and a support for supporting the spherical conductor.
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patent: 5850746 (1998-12-01), Lee
patent: 6292966 (2001-09-01), Lim et al.
patent: 6336348 (2002-01-01), Lee et al.
patent: 6640637 (2003-11-01), Baek
patent: 03077584 (1991-04-01), None
LG Electronics Inc.
McKenna Long & Aldridge
Perrin Joseph L.
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