A detector of foreign fibres and foreign materials based on an absorption measurement of light and corresponding detection method
CA 2277170 C · Owner: Bouvyn, Patrick · Inventors: Bouvyn, Patrick
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a detector (1) of foreign fibres and to a corresponding detection method, which can be used for detecting foreign fibres and foreign materials in a measurement object (5) in the textile industry for , example in yarns, slithers and unformed fibre bands on for example, weaving , machines, spinning machines bobbin winding machines, doubling machines cards, drawing benches and bobbin frames ... The principle of the detection is based on the fact that a measurement object (5) and foreign fibres or materials which are situated in the measurement object (5) absorb the light emitted into the measurement volume (4) by a light source (2) to different extents. …
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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 28, 1998 and granted July 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 28, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 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
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.