Control unit for domestic appliances
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 11, 2013
Grant Date -
May 7, 2009
app pub date -
Nov 11, 2008
filing date -
May 12, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A control unit comprising a light guide is formed and positioned in a circuit board for providing visual indication to a user of an appliance, such as a cooktop. The light guide receives light from a source, typically in the form of an LED on the circuit board, typically positioned laterally to the light guide, and the light guide receives and directs the light to the user. In some embodiments, the light guide is positioned behind a cover, which may have indicia thereon for providing operating information to the user. Portions of the light guide may be coated with an electrically conductive coating so as to also form a portion of a capacitance touch switch for detecting user input for controlling operation of the appliance.
First Claim
Family
International Classification(s)
Cited Art Landscape
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