Patents by Inventor Thomas E. Davy

Thomas E. Davy 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).

  • Method and apparatus for sewage treatment plants
    Patent number: 4145278
    Abstract: This invention relates to a method and apparatus for use in a sewage treatment plant, and is characterized by a centrifuge for receiving material precipitated by lime in the plant and for discharging a regenerable lime sludge, the centrifuge having a centrate stream of non-regenerable sludge, and means for drying the centrate stream with hot exhaust gases from a sludge furnace.
    Type: Grant
    Filed: February 7, 1977
    Date of Patent: March 20, 1979
    Assignee: Nichols Engineering & Research Corporation
    Inventor: Thomas E. Davy