Fiber reinforced elastomer anisotropic annular blowout preventer
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United States of America Patent
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Apr 28, 2015
Grant Date -
Dec 26, 2013
app pub date -
Jun 26, 2012
filing date -
Jun 26, 2012
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Abstract
A packer unit for an annular blowout preventer including an annular elastomer body including an elastomer having a unidirectional grain and a quantity of fiber longitudinally aligned with the grain of the elastomer. A method of forming a packing unit for a blowout preventer including forming a fiber reinforced elastomer by aligning fibers with a grain of an elastomer; cutting a portion from the fiber reinforced elastomer in the direction of the grain; loading the cut portion in a packing unit mold such that the grain of the fiber reinforced elastomer of the cut portion is parallel to a packing unit axis; and heating the loaded packing unit mold.
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