Postage meter including a safety locking circuit
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United States of America Patent
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-
Jan 23, 1996
Grant Date -
N/A
app pub date -
Sep 15, 1994
filing date -
Sep 24, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A mail-processing machine including an electrical power supply for powering at least one control motor, and a safety locking circuit electrically connected to a cover switch of the machine and co-operating with the electrical power supply to switch the power supply off whenever the cover of the machine is open. The machine includes a chopper electrical power supply comprising at least one power chopper circuit having a control circuit. The safety locking circuit includes at least one electromechanical relay electrically connecting the power chopper circuit to its control circuit, and constituting an integrated on/off mechanism that is approved, cheap, and very compact.
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