Patents by Inventor Norman T. Allen

Norman T. Allen 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).

  • Dual liquid level indicating gauge
    Patent number: 4078430
    Abstract: An indicating gauge has dual floats to measure the levels of two liquids contained in the same tank. A separate measuring tape is controlled by each float to provide an indication of the liquid level through a single viewing window above the tank. In certain situations, a single float and measuring tape is used to provide an indication of the level of one liquid within the tank. A wiper is engageable with the viewing window to permit cleaning of the inside surface of the window.
    Type: Grant
    Filed: March 8, 1976
    Date of Patent: March 14, 1978
    Assignee: Dover Corporation
    Inventors: Eugene B. Pemberton, Norman T. Allen