Process for the on-line characterisation of a surface in motion and device for implementing it
CA 2418731 C · Owner: Hardy, Yves · Inventors: Hardy, Yves; Schyns, Marc; Moreas, Genevieve
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The process for the on-line characterisation of a surface in motion, preferably a galvannealed sheet essentially comprises an , industrial microscope associated with a stroboscopic laser illumination device, a positioning assembly an assembly for , acquiring and processing images. The obtained view fields vary between 125 µm and 2000 µm in width, the spatial resolution is at least 0.5 µm, and the focussing of the system is precise to a micrometer. The images are taken on a product moving at a speed of between 1 m/s and 20 m/s and are frozen by the use of a stroboscopic illumination device with a duration of illumination of at least 10 ns. The obtained images are processed in several …
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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 April 17, 2002 and granted July 5, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 17, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 17, 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.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.