Patents Assigned to Insituform (Pipes & Structures) Ltd.
  • Lining of passageways
    Patent number: 4064211
    Abstract: A method wherein a tubular liner is applied to the surface of a passageway such as a tunnel or pipeline bore. The liner may be in the form of a flattened tube of absorbent material such as felt or foam such is impregnated with synthetic resin. The liner is anchored at one end of the passageway and is fed into the passageway being turned inside out as it is so fed in. In order to eliminate friction, the liner, before being turned inside out, is supported buoyantly by liquid which serves to carry the liner.
    Type: Grant
    Filed: November 5, 1975
    Date of Patent: December 20, 1977
    Assignee: Insituform (Pipes & Structures) Ltd.
    Inventor: Eric Wood
  • System for generating power from wave motions of the sea
    Patent number: 4048512
    Abstract: A power generating system for the generation of energy from the wave motions of the sea is buoyantly supported by the sea. The system comprises spine elements defining a spine on which ducks are rockably mounted, the system further including tension cable means pressing the spine elements towards each other thereby to define a spine, and energy conversion means for converting the rocking motion into electrical power.
    Type: Grant
    Filed: February 6, 1976
    Date of Patent: September 13, 1977
    Assignee: Insituform (Pipes & Structures) Ltd.
    Inventor: Eric Wood