Patents by Inventor Rubin E. Duke

Rubin E. Duke 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).

  • Shower water conservation system
    Patent number: 5689843
    Abstract: A new Shower Water Conservation System for conserving water during a shower thereby resulting in reduced water bills includes a T-spigot, a first flexible tube coupled to the T-spigot, a water control valve matingly coupled with the first flexible tube opposite of the T-spigot, a second flexible tube matingly coupled to the control valve, and a T-coupler matingly coupled to the second flexible tube and a shower head.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: November 25, 1997
    Inventors: Rubin E. Duke, Margaret Duke