Flue gas conditioning system
CA 2080485 A1 · Owner: Field Service Associates, Inc. · Inventors: Lynch, Jerome G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gas conditioning. system for reducing the electrical resistance of finely-divided fly ash particles entrained within a flue gas stream resulting from the burning of low sulfur coal and for enhancing the removal of the fly ash particles by electrostatic precipitation wherein an acid conditioning agent, e.g. sulfuric acid is passed through a vaporizing coil mounted within an enclosure defining a mixing chamber downstream from said coil and is vaporized by a stream of hot air passing over said coil and into said mixing chamber. The vaporized acid exits the coil and mixes with the hot air in the mixing chamber and the resulting mixture is injected into the flue gas stream so that the acid …
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 February 3, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 3, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 3, 2014.
- 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.