Patents by Inventor Randall W. Karr

Randall W. Karr 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).

  • Patent number: 4869699
    Abstract: A flying disk toy comprising a substantially planar disk configured to rotate about a central axis in sustained flight and a centrifugally activated sound generator associated with the disk is disclosed. The disk includes a cylindrical wall perpendicularly projecting from the plane of the disk and which is centrally disposed on the disk relative to its central axis. The centrifugally activated sound generator comprises two diametrically opposed centrifugal switches in series connection, each comprising a radially extending, axially inclined ramp, a pair of electrical contacts symmetrically disposed on opposite sides of the ramp in spaced apart relationship and an electrically conductive weight movably supported on the ramp.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: September 26, 1989
    Assignee: Millennia Design, Inc.
    Inventors: Eric D. Plambeck, Thomas A. Walker, Randall W. Karr