System and process for detecting cracks in conduits
CA 2235063 A1 · Owner: Ramaut, Edouard · Inventors: Ramaut, Edouard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
System for detecting cracks in a conduit (2) capable of moving within the conduit, the system including means of generating and injecting a magnetic flux in a part of the duct (2) means (81, 82) of measuring local magnetic fields on the inner surface of the conduit (2) means of processing and storing the said measured values and means of powering the system itself by the flow of fluid in the conduit (2). The means of flux generation and the means of measurement are associated within at least one measurement set (1) of substantially cylindrical shape comprising means of guidance (5 6, 71, 73) for imparting to the said measurement set (1) a substantially helical trajectory within the conduit …
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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, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 17, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 17, 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
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.