Process and sealing agent for producing a watertight and/or gastight bushing of lines in a water-resistant and/or gasblocking wall, and device for use thereof
CA 1340035 C · Owner: Waterproof Coatings S.A. · Inventors: Nooren, Franciscus Petrus Maria
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
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.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 8, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.