Patents by Inventor William J. Register

William J. Register 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).

  • Dark-initiated liquid flow control circuit for scrub sink
    Patent number: 6279179
    Abstract: A control circuit for flow control of liquid into a scrub sink wherein a differential amplifier is provided with an adjustable input signal based on the ambient condition and an input signal from a photocell which is mounted on the exterior of the edge of the scrub sink. An electrically responsive valve is in the flow line.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: August 28, 2001
    Inventor: William J. Register