Patents by Inventor George G. Bradley

George G. Bradley 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: 4655627
    Abstract: A brush arrangement, specifically a toothbrush, is provided with a reservoir of cleaning material in its handle. The handle is hollow and provided with an actuatable plunger arrangement which pressurizes the cleaning material so as to force it through a channel and to the brush head. The pressurized cleaning material opens a pressure valve arrangement which exposes a dispensing port through which the cleaning material is dispensed in the vicinity of a plurality of bristles. The dispensing port is opened by the application of a force from the pressurized cleaning material which exceeds a counterforce applied by a resilient device, such as a spring. When the pressure in the reservoir is relieved, such as by reversing the direction of travel of the plunger, the counterforce applied by the spring is sufficient to ensure that the pressure valve closes the dispensing port. In certain embodiments, the brush arrangement is provided with a replaceable brush head.
    Type: Grant
    Filed: May 17, 1985
    Date of Patent: April 7, 1987
    Inventor: George G. Bradley