Patents by Inventor James Andree

James Andree 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).

  • Photo-optical switch apparatus
    Patent number: 4479111
    Abstract: Photo-optical switch apparatus provided with integral, positive, mechanical, tacticle feedback mechanism wherein a horizontally disposed biasing spring carried by a light blocking and unblocking element or member is arranged to engage and be angularly deflected by an angularly projecting tang carried by an insert structure adapted for insertion within a keyboard matrix assembly.
    Type: Grant
    Filed: February 9, 1982
    Date of Patent: October 23, 1984
    Assignee: Burroughs Corporation
    Inventors: Craig C. Madsen, Daniel B. Stewart, James Andree