Patents by Inventor Douglas Tyson Maxwell

Douglas Tyson Maxwell 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).

  • Decorative waterfall system
    Patent number: 6290144
    Abstract: A waterfall system is provided. The waterfall system has a reservoir tank for holding water and a pump mechanism within the reservoir tank for pumping the water. A conduit cooperates with the pump means and has a first end and a second end for directing the pumped water from the first end of the conduit means to the second end of the conduit means with the first end of the conduit means being positioned within the reservoir tank. A spiral directional mechanism on the conduit means directs the pumped water substantially from the second end of the conduit means in a continuous spiral manner in a direction generally toward the first end.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: September 18, 2001
    Inventor: Douglas Tyson Maxwell