Patents Assigned to Tajima Denken Co., Ltd.
  • Pipe interior cleaning apparatus
    Patent number: 5465448
    Abstract: The present invention provides a pipe interior cleaning apparatus which can be operated at an inexpensive cost and with no special facility required, assuring an improved derusting effect. This pipe interior cleaning apparatus comprises a rod-like guide, knobs provided at opposite ends of said guide, and a cleaning member into which said guide is inserted and which is made to be slidable along said guide.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: November 14, 1995
    Assignee: Tajima Denken Co., Ltd.
    Inventors: Itsuho Tajima, Yoshitaka Tajima