Patents by Inventor William H. Dunckhorst

William H. Dunckhorst 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).

  • Timed shower head valve
    Patent number: 4345621
    Abstract: A shower head valve assembly for saving on the amount of water used for a single shower, which provides a timed cycle allowing water to flow for a preset period. The assembly includes a rotating ball set in a valve chamber. The ball is grooved and ported to control the flow of water. Rotation of the ball is controlled by a manually set spring operated timer which is wound to set to the timer and valve in operation.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: August 24, 1982
    Inventor: William H. Dunckhorst
  • Timed shower head valve
    Patent number: 4282899
    Abstract: A shower head valve assembly for saving on the amount of water used for a single shower, which provides a timed cycle allowing water to flow on for wetting, turns the water off for soaping and then turns on the flow of water again for rinsing for a preset period. The assembly includes a rotating ball set in a valve chamber. The ball is grooved and ported to control the flow of water. Rotation of the ball is controlled by a manually set spring operated timer which is wound to set the timer and valve in operation.
    Type: Grant
    Filed: August 7, 1979
    Date of Patent: August 11, 1981
    Inventor: William H. Dunckhorst