Battery charger for mobile robotic vacuum cleaner
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United States of America Patent
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-
Mar 25, 2014
Grant Date -
Apr 12, 2012
app pub date -
Dec 30, 2010
filing date -
Oct 11, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A battery charger having a charging side at the body thereof for receiving and charging a mobile robotic vacuum cleaner is disclosed. The charging side has a groove, a sound wave transmitter mounted in the groove and a baffle mounted in the groove in front side of the sound wave transmitter for reflecting the sound wave transmitted by the ultrasonic transmitter toward two opposite lateral sides of the charging side along the groove to form two opposing sound wave beams to form two opposing sound wave beams for receiving by a sound wave receiver of the mobile robotic vacuum cleaner for determination of the steering direction. Subject to the guide of the sound wave beams, the mobile robotic vacuum cleaner is accurately guided to the battery charger and will not pass over or impact the battery charger.
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