Ultrasonic austenitic weld seam inspection method and apparatus
CA 2424265 A1 · Owner: Chicago Bridge & Iron Company · Inventors: Kruzic, Ronald W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An array of dual-element transducers for automated ultrasonic inspection of a , weld seam in austenitic material is configured through the use of a schematic representation of the weld seam. The weld is divided into zones and separate , transducers are selected to inspect each zone. A creep-wave transducer is used to inspect the uppermost zone, and an L-wave transducer is used to inspect a lower zone. The L-wave transducer is connect to a computer processor to serve "double-duty": it is used with one set of gate and gain settings to process direct reflections of the emitted sound and with another set of gate and gain settings to process indirect, mode-converted reflections of the …
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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 October 4, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 4, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 4, 2023.
- 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.