Patents by Inventor Ronald R. Kerr, deceased

Ronald R. Kerr, deceased 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).

  • Combination handle
    Patent number: 4534340
    Abstract: Successively-delivered liquid pulses are led into an elongated hollowed handle of a size and shape to be grasped by the human hand. A nozzle, mounted to the handle, delivers those pulses against the teeth and gums of the user. Also mounted to the handle is a toothbrush for scrubbing the teeth and massaging the gums. Included within the handle are elements that cooperate to drive the toothbrush relative thereto.
    Type: Grant
    Filed: August 1, 1983
    Date of Patent: August 13, 1985
    Assignee: Teledyne Industries, Inc.
    Inventors: Ronald R. Kerr, deceased, David W. Smith, John M. Trenary