Patents by Inventor Louis S. Weichman

Louis S. Weichman 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).

  • Microelectromechanical safing and arming apparatus
    Patent number: 7383774
    Abstract: A two-stage acceleration sensing apparatus is disclosed which has applications for use in a fuze assembly for a projected munition. The apparatus, which can be formed by bulk micromachining or LIGA, can sense acceleration components along two orthogonal directions to enable movement of a shuttle from an “as-fabricated” position to a final position and locking of the shuttle in the final position. With the shuttle moved to the final position, the apparatus can perform one or more functions including completing an explosive train or an electrical switch closure, or allowing a light beam to be transmitted through the device.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: June 10, 2008
    Assignee: Sandia Corporation
    Inventors: David R. Koehler, Darren A. Hoke, Louis S. Weichman, George E. Vernon, Randy J. Shul, Michael H. Beggans
  • Microelectromechanical safing and arming apparatus
    Patent number: 7051656
    Abstract: A two-stage acceleration sensing apparatus is disclosed which has applications for use in a fuze assembly for a projected munition. The apparatus, which can be formed by bulk micromachining or LIGA, can sense acceleration components along two orthogonal directions to enable movement of a shuttle from an “as-fabricated” position to a final position and locking of the shuttle in the final position. With the shuttle moved to the final position, the apparatus can perform one or more functions including completing an explosive train or an electrical switch closure, or allowing a light beam to be transmitted through the device.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: May 30, 2006
    Assignee: Sandia Corporation
    Inventors: David R. Koehler, Darren A. Hoke, Louis S. Weichman, George E. Vernon, Randy J. Shul, Michael H. Beggans