Patents by Inventor Donald M. Foellner

Donald M. Foellner 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: 4118924
    Abstract: An improved form of illuminated display, particularly for electric wristwatches and the like. A light-reflecting dial face is provided, and a plurality of prisms formed of light-transmitting plastic arranged thereon. A miniature incandescent lamp is attached to the underside of a transparent cover or crystal for directing illumination upon the reflecting surface. An angled surface of the prism directs the light reflected thereon from the reflecting surface upwardly through indicia formed at the top of each prism. In a preferred embodiment, the indicia are formed by raised numerals, the radially inward halves thereof being inclined with respect to the reflecting surface. Watch hands are formed of translucent plastic, and have inclined lower surfaces with reflecting material thereon to allow the hands to be illuminated by the miniature lamp.
    Type: Grant
    Filed: April 18, 1977
    Date of Patent: October 10, 1978
    Inventor: Donald M. Foellner