Fire resistant mine door sealing system
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United States of America Patent
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N/A
Issued Date -
Apr 24, 2008
app pub date -
Oct 4, 2006
filing date -
Oct 4, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A fire resistant mine door sealing system is disclosed for use in an underground mine passage, and includes a door panel pivotably mounted to a stoppage. A fire resistant seal member is positioned between the door panel and the stoppage to form an airtight seal therebetween, even when the door, stoppage and seal are subjected to high temperatures associated with a mine fire. The seal member comprises a high strength reinforced elastomeric seal having a plurality of elastomer layers and a plurality of reinforcing layers. At least one of the plurality of elastomer layers may have a flame retardant. The reinforcing layers are sandwiched between the elastomer layers to provide high strength and toughness. A method of manufacturing a fire resistant seal member is also disclosed.
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