Patents Assigned to Waterproof Coatings S.A.
  • Process and sealing agent for producing a watertight and/or gastight bushing of lines in a water-resistant and/or gas-blocking wall, and device for use thereof
    Patent number: 5116413
    Abstract: A process is provided for feeding cables, wires, pipes etc. through a wall in such a way that the water- and/or gas resistance of the wall is maintained and that later on additional cables etc. can be passed through. The process uses a sealing agent comprising an intimate mixture of a water-swellable substance such as a clay and a hydrophobic substance such as vaseline. The sealing agent can be placed in a tubular device for providing water-tightness when making a bushing in a partially porous wall.
    Type: Grant
    Filed: June 11, 1991
    Date of Patent: May 26, 1992
    Assignee: Waterproof Coatings S.A.
    Inventor: Franciscus P. M. Nooren