A flow meter module for a controller
CA 2842607 A1 · Owner: Schneider Electric Usa, Inc. · Inventors: Williams, Michael B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for utilizing a controller to monitor a flow volume in a fluid transportation , system is disclosed. The controller being operably connected to a module. The module being , operably connected to a flow meter. The modules senses a series of pulses that represent a known , fluid volume in a proving loop. The module also measures the fluid density of the fluid in the , proving loop. The controller utilizes a dynamic density of the fluid and the sensed pulses to , determine a correction factor to more accurately calculate the flow volume through the measuring , flow meter. The controller ensures the accuracy of the flow meter by utilizing the partial pulses , …
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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 February 12, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 12, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 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.