Mechanical self-resetting short-circuit fault indicator
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United States of America Patent
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Dec 12, 2017
Grant Date -
Jul 21, 2016
app pub date -
Nov 13, 2015
filing date -
Jul 1, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A mechanical fault indicator of the automatic reset includes the core, the dial, the lock, the indicating rods, and the shell. The core includes the clip-on core, fixed core, connecting core and movable iron core. The pointer includes the indicating axis of rotation, the pointer connection and the indicating rod. The lock includes the lock axis of rotation, the lock hook and balancing weight. When using the indicator, clip the wire of the transmission line into the two-part clip-on core. When a short circuit fault happens, the indicating rod falls out of the housing, of which the action indicates failure. When the circuit is back to normal, the indicating rod resets automatically. The indicator has the advantages of: low cost, long service life, purely mechanical, no circuit and battery, and the installation is simple and convenient.
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