Device and method for pneumatically conveying bulk materials in a dense flow method
CA 2738719 C · Owner: Rio Tinto Alcan International Limited · Inventors: Ernst, Patrik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to device for pneumatically conveying a free-flowing bulk material in a dense flow method containing a cross-sectionally closed conveying line (3) with a conveying channel (2) a compressed gas auxiliary line (4) with a compressed gas channel (18) and means (5) which permit the passage of compressed gas and which serve to supply the conveying channel (2) with the compressed gas from compressed gas channel (18). The invention is characterized in that a fluidizing device is assigned to the conveying line (3) and the fluidizing gas and which serve to supply a fluidizing gas from the fluidizing gas channel (8) and into the conveying channel (2).
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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 July 22, 2005 and granted May 10, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 22, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.