Corrosion protection of magnesium components via fastener isolation
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United States of America Patent
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Sep 23, 2014
Grant Date -
Apr 25, 2013
app pub date -
Oct 20, 2011
filing date -
Oct 20, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
In accordance with exemplary embodiments, a system for isolating magnesium components from fastener devices is provided to prevent corrosion. The system comprises an isolation member of a metal other than magnesium and configured within a hole for receiving the fastener formed in a magnesium component. A compressible sealing washer having a first diameter is positioned over the hole and an isolation washer having a second diameter being less than the first diameter, and consisting of a similar metal as the isolation member, is placed over the compressible sealing washer. The fastener passes through the isolation washer, the compressible sealing washer and the isolation member within the hole, where is it tightened to compress the compressible sealing washer between the isolation member and isolation washer forming a water-tight seal around the hole to resist corrosion of the magnesium component.
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