Patents by Inventor Tore A. Andvig

Tore A. Andvig 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).

  • Grease level indicator
    Patent number: 4026239
    Abstract: A threaded plug in a grease filling opening on the periphery of a rotating sleeve is formed with a tube-shaped extension having lateral openings near its base, whereby the plug may be used as a grease level indicator.
    Type: Grant
    Filed: December 3, 1975
    Date of Patent: May 31, 1977
    Assignee: A/S Kongsberg Vapenfabrik
    Inventor: Tore A. Andvig