Amplitude measurement for an ultrasonic horn
CA 2302891 A1 · Owner: Ehlert, Thomas D. · Inventors: Ehlert, Thomas D.; Franklin, Kent A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and system for directly measuring and controlling the amplitude of an ultrasonic horn comprising an ultrasonic horn; non-contact measurement device for, directly measuring an amplitude of the ultrasonic horn and a controller for , modulating the, amplitude of the ultrasonic horn in communication with the non-contact measurement, device. In accordance with one embodiment the non-contact measurement device , is an optical system in which a high intensity light beam is transmitted from a light source onto, a surface of the ultrasonic horn generating a plurality of reflected light beams. A portion of, the plurality of reflected light beams is passed through a lens forming a , light …
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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 March 29, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2022.
- 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.