Rechargeable lighting devices
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United States of America Patent
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Dec 26, 2017
Issued Date -
N/A
app pub date -
May 16, 2017
filing date -
Sep 18, 2013
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A rechargeable lighting device has a rechargeable power source with a positive electrode located at its rear end, a main power circuit that powers a light source and includes the positive electrode, a charging circuit configured to be enabled when the lighting device engages a charging device, and at least one charging contact located on the exterior of the lighting device at or near its tail end. A microcontroller and switch are located at the rear end and the microcontroller wakes up to either turn on the main power circuit and isolate the charging contract from a charging ground path or turn on the charging circuit in which case the charging contact acts as part of the charging ground path.
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