Process for the cold transformation of municipal refuses and/or sludge into inert materials, plant for carrying out said process and products obtained
CA 2289680 A1 · Owner: Bernabei, Raffaello · Inventors: Bernabei, Raffaello
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 process for the cold transformation of urban solid refuses (USR) and/or sludge into inert materials comprising the steps of: , feeding USR and/or sludge from respective feeding lines; introducing the materials within a micronizer in order to reduce the granulometry and to recover water contained therein; adding CaO in an amount between 5 and 10 % in weight of the main component; adding CaCO3 in an amount between 5 and 10 % in weight of the main component; adding a polymeric additive in an amount between 3 and 10 % in weight of the main component; conveying the product to the shaping and stocking step. The invention also relates to a plant for the …
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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
- Filed May 7, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 2019.
- 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.