Apparatus and method for classifying fine particles into sub and supra micron ranges with high efficiency and throughput
CA 2467395 A1 · Owner: Coy, Daniel Charles · Inventors: Coy, Daniel Charles; Voytas, Robert John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A settling chamber for separating nanoparticles from microparticles. The settling chamber has an aspect ratio of sufficient value to allow the formation of two circulation zones of particles one above the other. The , settling chamber comprises a top section and a bottom section. An outlet port is located in the top section and an inlet port is located in a side of the bottom section. A gas fluidized particle stream is introduced through the inlet port into the settling chamber at a given velocity. A gas stream flow pattern is established within the settling chamber that retards transportation of microparticles to the outlet port while facilitating transportation of nanoparticles to …
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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 December 20, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 20, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2024.
- 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.