Mixing device
CA 2019888 A1 · Owner: Terlet N.V. · Inventors: Schroer, Johannes, D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Mixing device for powdered granular and/or paste materials, having a conical mixing tank (1) wish vertical axis which narrows towards the bottom, and in said mixing tank at least one mixing screw (2) which through drive units disposed outside the mixing tank (1) by means, of a transmission arm (15) to be rotated in a horizontal plane can, rotate about its own axis and can revolve along the wall of the mixing tank, the shaft of the mixing screw (2) at the top end being provided with a gear wheel (3) which meshes with a gear wheel (4) with vertical shaft, which has a smaller diameter than the gear wheel (3) on the mixing screw (2) whereby the gear wheel (4) with vertical shaft is connected by …
Read the whole patent
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 June 26, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 26, 2012.
- 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.