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Incremental tension fastener assembly

  • US 6,981,829 B2
  • Filed: 09/06/2002
  • Issued: 01/03/2006
  • Est. Priority Date: 09/06/2001
  • Status: Expired due to Term
First Claim
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1. A fastener assembly comprising:

  • a) a torquing member and a clamping member assembled on a common axis;

    b) the torquing member is provided with threads formed around the axis and an annular bearing surface extending around the axis on one end;

    c) the clamping member is provided with an annular bearing surface formed around the axis on one end and facing the torquing member bearing surface;

    d) the annular bearing surface on the torquing member includes a plurality of helically inclined surface segments, wherein the surface segments include a first pitch that is substantially equal to a pitch on the threads and the surface segments include a second pitch, with opposite incline relative to the threads; and

    e) the annular bearing surface on the clamping member includes a plurality of helically inclined surface segments, wherein the surface segments include a first pitch that is substantially equal to the pitch on the threads and the surface segments include a second pitch with opposite incline relative to the threads.

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