Extended life electromechanical lock
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United States of America Patent
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Issued Date -
Jul 24, 2003
app pub date -
Jan 24, 2002
filing date -
Jan 24, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A system with an electromechanical lock, such as a vending machine, has a back up power supply for use in the event power failure and includes a sleep mode for a microcontroller associated with a vending machine. Specifically, a switch decouples the microcontroller from the battery when a power interruption is detected and thus inhibits most power draining functions. A sensor associated with the electromechanical lock detects the presence of a key and draws enough power from the battery to operate the electromechanical lock such that a key user may access the interior of the vending machine.
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