Patents Assigned to Spartan Tool, A Div. of Heico, Inc.
  • Patent number: 5199129
    Abstract: A rotary drain and sewer cleaning apparatus includes a flexible elongate cable insertable into a line. An end of the elongate cable is attached in a drum and a portion of the elongate cable is wound in the drum. A motor rotates the drum. A power supply and switch selectively provide current to the motor causing the motor to rotate. A circuit includes a sensor for measuring a motor drive torque as the drum rotates and generating a torque signal representing motor drive torque level. An indicator is controlled by the torque signal and indicates the torque level.
    Type: Grant
    Filed: March 24, 1992
    Date of Patent: April 6, 1993
    Assignee: Spartan Tool, A Div. of Heico, Inc.
    Inventors: Roy Salecker, Rockwell T. Sloter