END-BURNING PROPELLANT GRAIN WITH AREA-ENHANCED BURNING SURFACE
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United States of America Patent
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Issued Date -
Jan 14, 2016
app pub date -
Jul 8, 2015
filing date -
Jun 15, 2010
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Abstract
An end-burning grain of a solid rocket motor or other gas-generating device is supplemented with one or more sticks of high-burn-rate propellant embedded in a matrix of a relatively low-burn-rate propellant. The sticks increase the burning surface area as the grain burns by forming conical indentations in the surface.
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