Earthquake actuated micro switch
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United States of America Patent
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-
Jul 12, 2005
Grant Date -
N/A
app pub date -
May 14, 2004
filing date -
May 14, 2004
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An earthquake actuated micro switch includes a ball which falls into a micro switch actuating position when disturbed. The ball normally resides in a shallow ball seat. A sufficient disturbance causes the ball to escape the ball seat, and fall into a switch seat. When the ball comes to rest in the switch seat, a lower surface of the ball pushes a micro switch actuator, thereby actuating the micro switch.
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