Patents by Inventor Paul Shakalis

Paul Shakalis 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: 4696428
    Abstract: An electronically controlled hot/cold water system including a temperature controlled mixing valve in flow series with an automatically controlled volume controlled valve. The system includes a T-fitting having one inlet connected to the outlet of the volume valve, one inlet connected to a manually controlled hot/cold mixing valve and one outlet connected to a point of use such as a shower head.
    Type: Grant
    Filed: July 10, 1986
    Date of Patent: September 29, 1987
    Inventor: Paul Shakalis