Washing machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 3, 1992
Grant Date -
N/A
app pub date -
Apr 1, 1991
filing date -
Mar 30, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A washing machine which comprises a fixed outer tub, a washing or drying tub which is rotatably provided in the outer tub, a first electrode which is provided at the upper portion of the outer tub and connected to a high-frequency signal source, a second electrode which is provided at the upper portion of the washing or drying tub and forms an input condenser for high-frequency signal input together with the first electrode, a third electrode which is provided at the upper portion of the outer tub and connected to a high-frequency signal detecting circuit, a fourth electrode which is provided at the upper portion of the washing or drying tub and forms the output condenser for getting a high-frequency signal together with the third electrode, and water-level detecting means which is provided at a predetermined position of the washing or drying tub in electrical communication with the second and fourth electrodes so as to designate change of impedance defined between the second and fourth electrodes in accordance with the water level in the washing or drying tub.
First Claim
Family
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Cited Art Landscape
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