Patents by Inventor John M. Krasny

John M. Krasny 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: 5911492
    Abstract: A transparent pointer has a rear surface coated with white paint and the remainder is covered by a highly reflective metal layer except for a light emitting indicator strip and a light receiving surface. Stationary high flux LEDs mounted behind the pointer illuminate the light receiving surface. Received light is efficiently reflected to the indicator strip to produce a bright line suitable for viewing through a dark face plate to achieve a dark dead front appearance. To avoid reflections from the pointer the reflective layer is covered with a black film.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: June 15, 1999
    Assignee: Delco Electronics Corporation
    Inventors: Kenneth David Perry, John M. Krasny