Patents by Inventor Thomas Van Dan Elzen

Thomas Van Dan Elzen 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).

  • Motor yo-yo
    Publication number: 20070105478
    Abstract: The invention is a yo-yo in which at least one of the yo-yo's sides includes a powered rotation system capable of maintaining the yo-yo's rotation when the yo-yo is sleeping at the end of its tether. The system functions by converting one of the yo-yo's sides into a motor, and includes a number of permanent magnets, an electromagnet, a sensor capable of detecting a magnet field, and a power source.
    Type: Application
    Filed: November 7, 2005
    Publication date: May 10, 2007
    Inventors: Hans Van Dan Elzen, Thomas Van Dan Elzen