Reduction of electrostatic charging of particles in pneumatic conveying
CA 2239392 A1 · Owner: Port, Benoit · Inventors: Briens, Cedric; Inculet, Ion; Port, Benoit
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Tribo-electrification of conveyed particles in a pipeline of a pneumatic conveying system is reduced by electrically isolating at least one portion of the inner surface of the pipeline, preferably the concave interior surface of at least one elbow. The isolated portion acquires an electric charge of opposite polarity to that of the conveyed particles.
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 2, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 2, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 2, 2020.
- 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.