Patents by Inventor Joseph J. Danna

Joseph J. Danna 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).

  • Photo-electric controlled dispenser
    Patent number: 4645094
    Abstract: A fluid dispenser for dispensing liquid detergents, soaps and germicides. A pressure plate imparts a squeezing force to a flexible reservoir containing the liquid material to force the material therefrom. A battery operated photoelectric device is positioned adjacent the dispensing valve which is opened for a timed period upon locating an object such as a hand, near the photoelectric device. Also, a device is provided to control the power to the photoelectric device upon sensing the condition of the ambient room lighting.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: February 24, 1987
    Assignee: Calgon Corporation
    Inventors: John R. Acklin, Lee W. Bush, Joseph J. Danna, John L. Devitt, George A. Rauh