Multiple Strand Type Patents (Class 15/104.51)
With rigid supporting frame (Class 15/104.52)
  • Pipeline cleaning
    Patent number: 6332930
    Abstract: A pipeline cleaning arrangement that includes a cleaning pig with guide units at each end. A tow cable, via a cone, pulls the pig assembly in a forward direction. The tow cable then pulls the cone in a rearward direction. The pig is configured with two cleaning portions that separate in the forward direction to avoid debris collection and abut in the rearwards direction to collect pipeline debris and carry this to the entry point for removal via a suction tube.
    Type: Grant
    Filed: October 25, 2000
    Date of Patent: December 25, 2001
    Assignee: Lattice Intellectual Property Ltd.
    Inventor: Michael Rose