Testing of liquid melts
CA 1235476 A · Owner: University Of Toronto Innovations Foundation (The) · Inventors: Mountford, Norman D.G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A probe is provided for testing or treatment of molten metals, alloys etc. with ultrasound. The probe is provided with a cooling means, near to its tip for contacting the melt so as, to be able to provide a steep temperature gradient over the melt contacting end of the tip. The temperature gradient is such that, when the probe is a steel rod of about one inch diameter the temperature at a point 2 inches from the melt contacting point is at least 700°C lower than the melt temperature. In rods of other materials and other sizes an equivalent gradient, is created, within the limits of the thermal conductivity of the material and the size considerations. This cooling allows for enhanced …
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 April 19, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 19, 2005.
- 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.