Patents by Inventor Donald L. M. Martin

Donald L. M. Martin 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).

  • Patent number: 5589979
    Abstract: A screen simulator arrangement includes spaced apart screen and one or more mirror means; said screen means is formed with a plurality of spaced apart transparent portions therein; said mirror means is formed or provided with a plurality of holes or openings therein; said screen and said mirror means are fixedly located relative to each other; the transparent portions of said screen means and the holes or openings of said mirror means are substantially out of register one with the other. An inner screen surface of said screen means and a reflective surface of said mirror means generally face inwardly towards each other, said transparent portions of said screen means and said holes or openings of said mirror means being so out of register one with the other, such that screen portions of said screen means are in substantial alignment/register with holes or openings in said mirror means.
    Type: Grant
    Filed: March 15, 1994
    Date of Patent: December 31, 1996
    Assignee: Trutan Pty Limited
    Inventor: Donald L. M. Martin
  • Patent number: 5080481
    Abstract: A screen simulator window having a window aperture through which a scene may be viewed with a partial screen arranged immediately behind the window. The screen consists of alternately opaque screen portions and transparent screen portions. The adjacent screen portions are transposed at a speed such that the presence of the screen is not apparent to the eye of the viewer. A projector projects a scene onto rear sections of the opaque screen portions extending away from the window. A mirror behind the partial screen is viewable through the window. The scene projected onto the rear surface of the opaque screen portions is visible in the mirror and viewable through the window.
    Type: Grant
    Filed: January 29, 1990
    Date of Patent: January 14, 1992
    Assignee: Arnotts Biscuits Limited
    Inventors: Donald L. M. Martin, Keith W. Kanaar, Robert W. G. MacDonald