Patents by Inventor Carlis Louis Shumake, Jr.

Carlis Louis Shumake, Jr. 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).

  • Self-closing valve
    Patent number: 6533243
    Abstract: A simple and inexpensive self-closing spring-loaded ball valve assembly that can be latched in the valve open position and consequentially triggered to automatically close and shut off the flow of fluid therethrough.
    Type: Grant
    Filed: January 2, 2002
    Date of Patent: March 18, 2003
    Inventors: Wallace Maurice Sumner, Carlis Louis Shumake, Jr.