Patents by Inventor Teruyuki Urushibara

Teruyuki Urushibara 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).

  • Apparatus for and method of controlling calender roll gap
    Patent number: 5456871
    Abstract: The roll gap control system for a calender having first and second rolls (18, 19) rolling a raw material (B) includes a load measuring unit (11) for detecting a rolling load change between the first and second rolls (18, 19), a roll shaft position adjusting device (41) for increasing/decreasing a roll gap and a controller (46) for computing a roll gap change (.DELTA.h) based on the rolling load change (.DELTA.P) and for activating the roll shaft position adjusting device (41) to compensate for the roll gap change (.DELTA.h). A spring constant (k) of first and second rolls (18, 19) and mechanical members (24, 25, 28) supporting these rolls of the calender is calculated, and the rolling load change (.DELTA.P) is divided by the spring constant (k). The quotient (.DELTA.P/k) is the roll gap change (.DELTA.h).
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: October 10, 1995
    Assignee: Ishikawajima-Harima Heavy Industries Co.
    Inventors: Eiichi Harada, Masaaki Urakawa, Teruyuki Urushibara, Katsu Tsukii