Method of monitoring acoustic contact in ultrasonic testing
CA 2006310 A1 · Owner: Moskovskoe Vysshee Tekhnicheskoe Uchilische Imeni N.E.Baumana · Inventors: Baranov, Vladimir J.; Babina, Vera R.; Urman, Naum S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A b s t r a c t, A method of monitoring acoustic contact in ultrasonic testing comprises the steps of selecting the prism angle of radiating and receiving ultrasonic transducers to be smaller than the first critical angle, placing the transducers on the surface of a welded joint at a predetermined distance from the longitudinal axis of a weld, said distance being chosen taking into account the thickness of elements welded together, the width of reinforcing beads and the angles between directions of longitudinal and transverse ultrasonic waves radiated into the welded joint and a perpendicular to the surface at the point of radiation of the waves, and evaluating quality of acoustic contact …
Read the whole patent
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 December 21, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 21, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2011.
- 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.