Patents Assigned to Tooyota Tsusho Corporation
  • Patent number: 5746320
    Abstract: A friction electrifying-type electrostatic sorting apparatus having a preliminary friction electrifying unit for preliminarily electrifying a sorted material by providing a friction; a friction electrifying unit for further electrifying the sorted material having been preliminarily electrified by the preliminary friction electrifying unit; a feeding unit for supplying the sorted material having been electrified by the friction electrifying unit; and an electrostatic sorting unit for electrostatically sorting the electrified material supplied from the feeding unit according to the electrified state of the sorted material by providing the sorted material in an electrostatic field.
    Type: Grant
    Filed: June 12, 1995
    Date of Patent: May 5, 1998
    Assignees: Tooyota Tsusho Corporation, Senko Kogyo Co., Ltd., Toyota Metal Co., Ltd.
    Inventors: Yoshihisa Fujita, Masakatsu Kumagai, Yoshihisa Aizawa