Patents by Inventor William J. Maroney

William J. Maroney 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).

  • High velocity composite strainer
    Patent number: 4162975
    Abstract: There is provided a composite strainer unit suitable for use with particulate substances in a liquid environment comprising a first strainer unit in combination with a second strainer unit. The first strainer unit having a much larger effective area than the second unit whereby, at any given speed the working liquid will pass through the first strainer unit at low velocity and through the second strainer unit at high velocity. The composite unit is provided with a valve means whereby flow access to the first strainer unit may be closed to permit high velocity flow through the second unit only.
    Type: Grant
    Filed: February 7, 1978
    Date of Patent: July 31, 1979
    Assignee: Permutit Company, Inc.
    Inventors: Ralph C. Adams, Arthur C. Epstein, William J. Maroney, Albert B. Mindler