Method and system for continuously monitoring and controlling a process stream
CA 2329953 A1 · Owner: Usfilter Corporation · Inventors: Stannard, James W.; Bonnick, David Macdonald; Foster, Kevin Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and system for directly monitoring and controlling a continuous process, stream for dechlorination residual is provided. A sample stream to which a dechlorination agent, has been added to completely eliminate a residual disinfectant is continuously drawn off. An, analyzing agent of iodine is provided by introducing an iodide solution a , chloramine-T solution, and an acetic acid buffer into the sample stream. The reagents quickly react to produce iodine, that reacts with any residual disinfectant removal agent residual that may be present. Thereafter, the sample stream is continuously analyzed to determine the amount of unreacted iodine, remaining in the process sample. Based …
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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 January 2, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 2, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 2, 2023.
- 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
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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.