Patents by Inventor John J. Rector

John J. Rector 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).

  • Gravity screen with burden removal and pore-cleaning means
    Patent number: 5779887
    Abstract: A burden removal system for removing solid burden from a stream of water. A screen has an upper and a lower surface with pores extending between them. The upper surface is substantially horizontal. A drive bar with a wiper bade is cyclically bi-directionally driven with the blade pushing burden along the upper surface in one direction and rising above the burden in the opposite direction. Jet sprays discharge water against the lower surface, preferably just ahead of the wiper blade to assist the blade in moving the burden and cleaning the pores.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: July 14, 1998
    Assignee: Claude Laval Corporation
    Inventors: John J. Rector, Thomas Lisy