Alarm system for a card holder
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United States of America Patent
Stats
-
Apr 6, 1999
Grant Date -
N/A
app pub date -
Jan 10, 1998
filing date -
Jan 10, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flexible resilient ribbon having first and second conductive surfaces is wrapped over the top edge of a pocket wall forming a bowed-out first conductive surface adjacent to the top edge of the wall which biases the first conductive surface into contact with the second conductive surface when a card is absent from the pocket, an alarm circuit IC terminal is connected by a network which includes a fixed resistor to power supply negative and the first and second conductive surfaces each of carbon, in series removable contact, connected to power supply positive.
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