Patents by Inventor Ronald J. Refici

Ronald J. Refici 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).

  • Three aspect signalling device using no moving parts
    Patent number: 4754272
    Abstract: A three color aspect light signalling system that displays one color at a time without producing phantom signals. The apparatus utilizes three sources of collimated white light, a filter and two dichroic mirror/filters are used to produce three colored aspects and two output lenses are used to collimate the colored output signal so that it may be seen at distances greater than one mile.
    Type: Grant
    Filed: September 18, 1986
    Date of Patent: June 28, 1988
    Assignee: General Signal Corporation
    Inventors: Cornelius J. Illenberg, Ronald J. Refici, Lynn Van Orden