Patents by Inventor Tadayo Ando

Tadayo Ando 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 of controlling a position of rotor in a high pressure feeder
    Patent number: 5597446
    Abstract: In an apparatus and method for controlling the position of a rotor in a truncated conical feeder for feeding a feed comprising a lignocellulose material and an alkaline cooking liquor to a pulping digester; the position of the rotor in the feeder is detected by a rotor position detector; and a signal indicating the detected position is input to a control device; the rotor is moved at a distance of 0.03 to 0.4 mm every 0.3 to 4 days by driving an electric motor and moving a shaft of the rotor in response to a signal, when the rotor is moved a predetermined distance, and the rotor-moving motor is stopped by a signal input from the control device.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: January 28, 1997
    Assignee: New Oji Paper Co., Ltd.
    Inventors: Junichiro Sato, Tadayo Ando, Sumio Hayakawa, Ryuji Ouchi