Patents by Inventor David Wayne Cripe

David Wayne Cripe 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).

  • Shape-memory alloy actuator
    Patent number: 8220259
    Abstract: An actuator includes a shape memory element formed from a shape memory alloy. The shape memory element is configured such that the actuator is actuated by a change in shape of the shape memory element. The shape memory element may be maintained in a pre-actuated state that is advanced from its rest state, but which is not at its actuated state.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: July 17, 2012
    Assignee: Rockwell Collins, Inc.
    Inventors: David Wayne Cripe, Bryan S. McCoy, Ryan J. Legge, Gerard A. Woychik, Robert P. Campbell
  • Shape-memory alloy actuator
    Patent number: 8051656
    Abstract: A shape memory element (a structure formed from a shape memory alloy) includes an electrically conductive ferromagnetic material. The ferromagnetic material may be magnetostrictive. In some embodiments, the shape memory element is formed from a shape memory alloy core and has a cladding over the core that includes the ferromagnetic material. In other embodiments, the shape memory alloy may be selected to be ferromagnetic.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: November 8, 2011
    Assignee: Rockwell Collins, Inc.
    Inventors: David Wayne Cripe, Bryan S. McCoy, Ryan J. Legge, Gerard A. Woychik, Robert P. Campbell