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Composite nut and bolt

  • US 5,033,925 A
  • Filed: 12/16/1988
  • Issued: 07/23/1991
  • Est. Priority Date: 12/16/1988
  • Status: Expired due to Fees
First Claim
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1. A hollow internally threaded member formed of fibers in a polymer matrix, said member having an interior surface having an integral thread having a rounded apex, the hollow member comprising a polymeric matrix encapsulating a bundle of successively applied coaxial reinforcing fabric layers extending throughout in the axial direction of the hollow member, the innermost layer of reinforcing fabric having continuous undulate members closely conforming to the contour of the thread.

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