Feeder for transferring material between vessels held at different pressures
CA 2611575 C · Owner: Hernesniemi, Lasse · Inventors: Hernesniemi, Lasse; Jacobsson, Torbjoern; Jonsson, Anders
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Revolver-type transfer device for bulk material with a new type of a sealing system. The transfer device comprises a rotatable shaft (6) with a rotor (3) having a plurality of axial flow channels (4,5); and a casing (1) enclosing the rotor. Axially movable sealing plates (11,12) are provided between the ends of the rotor and the ends of the casing and means for pressurizing the chamber (2) by feeding a pressurized fluid (L1) to the casing. The device comprises connections (13,14,15,16) for low-pressure flow into and out of the flow channels and for high-pressure flow into and out of the flow channels. The device can be used to transfer steamed wood chips in solution from low …
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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 September 8, 2006 and granted July 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 8, 2026.
- 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.