Manufacturing moulded bodies containing ceramic fibres
CA 1264527 C · Owner: Didier-Werke Ag · Inventors: Rausch, Miroslav
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of manufacturing light moulded bodies includes forming a dispersion of ceramic fibres and flocculating it with a cationic flocculating agent. This flocculated dispersion is then mixed with a dispersion of refractory material with a particle size less than or equal to 0.09mm and an inorganic bonding agent which has been flocculated with an anionic flocculating agent, or alternatively the said refractory materials and inorganic bonding agent are added to the flocculated dispersion and an anionic flocculating agent is added to the mixture. The mixture is permitted to settle out and the overlying liquid is removed. The mixture is then introduced into a mould and dewatered to form a …
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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 January 23, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 2007.
- 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.