Patents by Inventor Brendan Vishoot

Brendan Vishoot 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).

  • Actuation mechanism for braille displays
    Patent number: 8770981
    Abstract: According to the present invention, there is provided an improved refreshable tactile display apparatus including a housing, bias compression springs, sliding blocks, pins, and a shape memory alloy wire. The sliding block is actuated by the interaction between the bias compression spring and the shape memory alloy wire. The shape memory alloy wire is then activated by current driven from a power supply in either a modulated or unmodulated fashion.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: July 8, 2014
    Assignee: Board of Trustees of Northern Illinois University
    Inventors: David Schroeder, Graham Bogda, Brendan Vishoot
  • ACTUATION MECHANISM FOR BRAILLE DISPLAYS
    Publication number: 20110269106
    Abstract: According to the present invention, there is provided an improved refreshable tactile display apparatus including a housing, bias compression springs, sliding blocks, pins, and a shape memory alloy wire. The sliding block is actuated by the interaction between the bias compression spring and the shape memory alloy wire. The shape memory alloy wire is then activated by current driven from a power supply in either a modulated or unmodulated fashion.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 3, 2011
    Inventors: David Schroeder, Graham Bogda, Brendan Vishoot