Injection sealable waterstop and method of installing same
CA 1074143 A · Owner: Vredestein N.V. · Inventors: De Munck, Eduard H. L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a water-stop composed of elastic deformable rubbery material for use in concrete structures. The water-stop has a substantially flat middle portion and enlarged side wing anchor portions provided with metal or elastic seals. A pad of elastically-deformable sponge material is attached to one surface of at least each of the side seals and attached to each pad so as to be sealed. At least one injection tube, of sufficient length to reach the outside surface of the concrete in which the water-stop is to be installed is also provided. Each side seal is preferably attached substantially normal to each pad and a strip of elastically-deformable sponge material secured to …
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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 March 25, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 25, 1997.
- 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.