Patents by Inventor Christopher E. Billings

Christopher E. Billings 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: 4805514
    Abstract: A device is provided for the attachment to the resonating membrane of a musical drum to overcome the ringing phenomenon associated with drum membranes fabricated of synthetic materials, and enhance the projected sound of the attack membrane. The device is comprised of a base portion and a ball portion. The base is attached to a circular opening cut into the resonating membrane and disposes the device within the drum with the larger distal end and directed toward the attack membrane. The device has an axis of symmetry which is vertically oriented to the resonating membrane. The internal periphery of the device, directed toward the axis, is fabricated of sound reflective material. The outside surface of the device is fabricated or porous sound absorbent material.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: February 21, 1989
    Inventor: Christopher E. Billings