Patents by Inventor Jennifer L. Crumrine

Jennifer L. Crumrine has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Quarter turn fastener
    Patent number: 6575682
    Abstract: A quarter turn fastener, for securing a plurality of members together, includes a blade member which has upturned corner portions defining sharp points for bitingly engaging the undersurface of the lowermost one of the plurality of members so as to prevent retrograde movement of the quarter turn fastener from the locked state back to the unlocked state. A quarter turn fastener assembly also comprises a stop member for engaging wall portions of another one of the members to be secured together such that rotation of the quarter turn fastener is limited to 90° arcuate extents either from the unlocked state to the locked state or from the locked state to the unlocked state.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: June 10, 2003
    Assignee: Illinois Tool Works Inc.
    Inventors: Stephen R. Dohm, Jeffrey D. Anderson, Jennifer L. Crumrine, James M. Van Ingen