Apparatus for mixing and aerating liquid-solid slurries
CA 2327150 C · Owner: Van Dijk, Gerard · Inventors: Van Dijk, Gerard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for dispersing a gas in a liquid or slurry has a reaction vessel with an inner zone for the downward flow of liquid an outer zone for the upper flow of liquid a plurality of aerators in the outer zone and a propeller to induce downward flow in the inner zone and promote mixing and circulation of the liquid/slurry. The apparatus is particularly suitable for use in the bacterial decomposition of organic waste matter for efficiently aerating large volumes of waste/water slurries.
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 November 29, 2000 and granted June 26, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 2022.
- 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.