Rotary push-button capacitance switch knob
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United States of America Patent
Stats
-
May 29, 2012
Grant Date -
Aug 5, 2010
app pub date -
Jan 28, 2010
filing date -
Feb 3, 2009
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An operating device for an electrical appliance has a control panel and an operating element for rotary actuation arranged thereon and a controller, wherein said operating element is mounted in a receptacle arranged behind said control panel and comprises on a front a touch-sensitive switch with a sensor element being connected electrically conductively to said controller. Said operating device comprises a retraction device for retracting said operating element into its recessed position in said receptacle by pressing. Said retraction device is configured in such a way that said knob can only be retracted into its recessed position in a single retraction rotational position, said touch-sensitive switch being deactivated by said controller in said retraction rotational position.
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Family
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Cited Art Landscape
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