Treatment of metal strip with ultrasonic energy and apparatus
CA 1080095 A · Owner: National Steel Corporation · Inventors: Jubenville, Duncan; Kenney, Donald J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure Method and apparatus in which moving metal strip is treated in a treating solution in an elongated tank having a granite bottom sloping upwardly on each side of the longitudinal center line of the tank and ultrasonic energy is directed downwardly through the moving metal strip to be reflected back and forth between the sloping granite bottom and the surface of the treating solution in a path that extends across the width of the tank and repeatedly intersects the moving metal strip. The minimum number of ultrasonic generating units are possible in an arrangement in which the ultrasonic generating units extend longitudinally of the tank along a line above a marginal …
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
- Granted June 24, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 24, 1997.
- 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.