Method and apparatus for detecting flaws in a railhead
CA 2598336 C · Owner: Bestebreurtje, Pieter · Inventors: Bestebreurtje, Pieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for detecting flaws in a railhead which railhead (1) is provided , with a top side (T) a bottom side (B) and longitudinal sides (S) extending between that top side (T) and bottom side (B) wherein at least one ultrasonic , first signal (10) is transmitted into the railhead (1) via said head top side (T) and traverses such a transmission path (9) that: - the signal (10) is only once reflected by the railhead bottom side (B) and not by a railhead , longitudinal side (S); - the signal (10) reaches at least one substantially central railhead part (C); and - the signal (10) can exit the railhead (1) via the head top side (T); wherein first ultrasonic signals exiting the head top …
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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 12, 2006 and granted October 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 12, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.