RFID open fuse indicator, system, and method
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United States of America Patent
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Mar 13, 2012
Grant Date -
Sep 25, 2008
app pub date -
Mar 31, 2008
filing date -
Apr 20, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
Electrical fuse indicators, systems and methods for detecting when fuses enter an open state involve a wireless identification element, which alerts a communication unit that the fuse has entered an open state. The wireless identification device may include an antenna. The antenna may be in contact with a fuse element, such that opening of the fuse element renders the antenna inoperable. Alternatively the antenna may be connected to the fuse element in such a manner that opening of the fuse element alters the frequency on which the antenna transmits. A logic port may also be used to detect the operational state of a fuse. Use of such indicators is compatible with existing infrastructure.
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