Patents by Inventor Frank C. Trouillard

Frank C. Trouillard 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).

  • Optical scanning apparatus having means to stabilize optical unit against the platen
    Patent number: 5194898
    Abstract: An optical scanning apparatus for scanning image information of a document on a document support (D) and a scanning unit (50) being positively guided along a predetermined scanning path; characterized in that said scanning unit has bearing members (30) for making contact with a face of said document or document support and thereby determining the optical distance between that face and said focusing means (10), and in that said unit is mounted so that it is under biasing forces which maintain its said bearing members in running contact with said document or document support during a scanning movement of the unit.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: March 16, 1993
    Assignee: Agfa-Gevaert N.V.
    Inventors: Dirk L. Costrop, Frank C. Trouillard