Brush seal with stress and deflection accommodating membrane
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United States of America Patent
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Aug 13, 2013
Issued Date -
N/A
app pub date -
Mar 25, 2010
filing date -
Aug 31, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A brush seal usable in high temperature sealing applications having brush bristles and a sealing membrane of stress and deflection accommodating construction capable of longitudinal extensibility. Sealing membrane has one portion slidably overlapped with another portion. In one embodiment, membrane is folded over itself providing slidable overlapping in one direction and is formed of overlapping membrane sheets providing slidable overlapping in another direction. In another embodiment, membrane has spaced apart deformation regions providing longitudinal extensibility in accommodating stress and/or deflection. Membrane can be made of metallic foil having a thickness no greater than brush bristle width or diameter and is embeddable in bristles of the brush seal.
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