Patents by Inventor Donald C. MacEachern

Donald C. MacEachern 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: 4855885
    Abstract: A light beam intensifier (10) having a paraboloidal reflector (12) a mirror (14) a single light tube (16) and window (18). The mirror (14) is placed forward of the forcal point f of the reflector (12) and has the light tube (16) affixed thereto to be positioned coincident with the focal point f. As the light tube (16) is energized, light rays (52) emanating directly therefrom are reflected from the parabolic reflector (12) to form a first beam path and the forward shining light rays (54) are reflected from the reflective surface (34) of the mirror (14) to be reflected off the paraboloidal reflector (12) to form a composite light beam path (56) having a predetermined pattern.
    Type: Grant
    Filed: April 11, 1988
    Date of Patent: August 8, 1989
    Assignee: DSL Dynamic Sciences Limited
    Inventors: Donald C. MacEachern, Gaston Levesque