Patents by Inventor Jack Theisen

Jack Theisen 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).

  • Broadband energy harvester apparatus and method
    Patent number: 7459837
    Abstract: An energy harvesting apparatus and method for harvesting vibration energy over a wide frequency band and at low amplitudes. The apparatus includes a reaction component that is supported by a plurality of independent piezoelectric flexures from a base. The flexures are secured to the base and to portions of the reaction component so that they create equal but opposite constant moments applied to the reaction component that cancel one another out. As the base experiences lateral vibration energy, this causes a swinging or rolling motion of the reaction component, that causes changes in stress and/or strain experienced by the flexures. This causes the flexures to generate electrical signals that can be used powering external devices.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: December 2, 2008
    Assignee: The Boeing Company
    Inventors: Dan J. Clingman, Jack Theisen
  • BROADBAND ENERGY HARVESTER APPARATUS AND METHOD
    Publication number: 20080150395
    Abstract: An energy harvesting apparatus and method for harvesting vibration energy over a wide frequency band and at low amplitudes. The apparatus includes a reaction component that is supported by a plurality of independent piezoelectric flexures from a base. The flexures are secured to the base and to portions of the reaction component so that they create equal but opposite constant moments applied to the reaction component that cancel one another out. As the base experiences lateral vibration energy, this causes a swinging or rolling motion of the reaction component, that causes changes in stress and/or strain experienced by the flexures. This causes the flexures to generate electrical signals that can be used powering external devices.
    Type: Application
    Filed: December 20, 2006
    Publication date: June 26, 2008
    Inventors: Dan J. Clingman, Jack Theisen