Patents by Inventor Rangaswami S. Iyengar

Rangaswami S. Iyengar 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).

  • Patent number: 4582568
    Abstract: A method and apparatus for treating a pulp suspension in the manufacture of paper employing a controlled drainage thickener and a screw type pulp press. Pulp is fed into the thickener where the feed screw contained therein delivers it to a vertical discharge column. A screw type conveyor delivers the pulp suspension from the vertical discharge column into a vertical inlet column associated with a screw type pulp press. A sensing means is provided to measure the consistency of the pulp entering the press, and a sensing means provides a control signal which is arranged to modulate operation of a discharge valve on the thickener to keep the consistency of the pulp entering the screw type pulp press within a predetermined range.
    Type: Grant
    Filed: September 15, 1983
    Date of Patent: April 15, 1986
    Assignee: Beloit Corporation
    Inventor: Rangaswami S. Iyengar