Hand-held electric appliance power-saving switch control mechanism
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United States of America Patent
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Sep 9, 2003
Grant Date -
May 30, 2002
app pub date -
Oct 31, 2001
filing date -
Nov 27, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A power-saving switch control mechanism for hand-held electric appliance comprises a sensor to detect the approaching hand of user and then continuously transmit signals to activate a switch into a close-circuit status in order for a cell to supply power to a control circuit of the electric appliance. When the sensor fails to detect the hand on the electric appliance, the switch returns to an open-circuit status to stop the cell from supplying power to the control circuit and stop the operation of the electric appliance accordingly.
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