Method and device for granulating molten material
CA 1325317 C · Owner: Industrie Des Poudres Spheriques · Inventors: Chaleat, Bernard; Vaxelaire, Philippe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, Molten material to be granulated is fed into a container terminating in an orifice for spray discharge of material in the form of droplets at the inlet of a cooling enclosure in which the droplets solidify in the form of granules. The container is provided on at least part of its internal wall with raised helical elements which cause the molten material to flow in helical streams. The helical elements consist of grooves formed in a cylindrical member which is tightly but removably fitted within a cylindrical portion of the container.
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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
- Granted December 21, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 21, 2010.
- 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.