Patents Assigned to Seirei Kogyo Inc.
  • Core-gathering apparatus and a main conveyor belt drive roller structure for the apparatus
    Patent number: 5178221
    Abstract: An apparatus which gathers earthen cores dug out by a boring machine operates with a main conveyor belt and auxiliary conveyor belt which are partially forced in contact with each other so as to sandwich earthen cores inbetween and transfer the cords to a collecting box. The main conveyor belt is driven by a single drive roller that has axially inclined projecting strips on the end portions so as to prevent the main conveyor belt from shifting in position.
    Type: Grant
    Filed: April 11, 1991
    Date of Patent: January 12, 1993
    Assignees: Seirei Kogyo Inc., Kawahara Yanmar Inc.
    Inventors: Yoshinobu Hamawaki, Hirofumi Kawahara