Composite springs and methods of manufacture
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United States of America Patent
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Dec 28, 2010
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app pub date -
Mar 24, 2009
filing date -
Mar 28, 2008
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Abstract
Composite springs and methods of manufacture are described. The composite springs include a flexible core supporting multiple layers of a cured, resin-impregnated composite fiber wherein resin-impregnated composite fiber is wound or braided over the flexible core and cured on a helical mold to form a spring having a desired helical pitch, diameter and spring rate. The multiple layers of resin-impregnated composite fiber are wound or braided at .+-.5-90 degrees relative to the longitudinal axis of the flexible core.
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