Apparatus for driving the armature of an electric stapler
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United States of America Patent
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-
Apr 14, 1992
Grant Date -
N/A
app pub date -
Feb 28, 1990
filing date -
Feb 28, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Solid state control circuitry for driving an electromagnetic armature of a battery operated electric stapler. The armature is activated by a trigger signal generated by a trigger switch which discharges an energy storage device through the armature. Energy is rapidly replenished in the energy storage device following its discharge; but if a subsequent trigger signal is not forthcoming, the control circuit reverts to a quiescent state, thereby reducing power consumption.
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