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Locking fastener assembly

  • US 8,011,866 B2
  • Filed: 04/19/2007
  • Issued: 09/06/2011
  • Est. Priority Date: 08/20/2001
  • Status: Expired due to Fees
First Claim
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1. A locking fastener assembly, comprising:

  • a) a fastener nut and a fastener washer rotatable relative to each other about a common axis;

    b) a washer contacting surface on said fastener nut and a nut contacting surface on said fastener washer, both the washer contacting surface and the nut contacting surface being configured to resist rotating relative to each other;

    c) both the washer contacting surface and the nut contacting surface include a plurality of inclined faces oriented about the common axis;

    d) said fastener nut includes a nut body that is provided with a skirt extending from one end of said nut body;

    e) said fastener washer including a washer body with an aperture extending through the washer body;

    f) said skirt extending into said aperture when said fastener nut and fastener washer are assembled;

    g) at least some portion of said skirt being deformed outwardly after said fastener nut and fastener washer are assembled so as to loosely hold said fastener washer on said fastener nut;

    h) said nut body is internally threaded so that the nut body can be turned onto an externally threaded member; and

    i) said washer body including an element formed in said aperture for preventing said fastener washer from rotating when said fastener nut is turned onto said threaded member.

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