High shear mixing
CA 1302398 C · Owner: Edwards, Richard Barrie · Inventors: Adams, Michael John; Irving, Graeme Neil; Edmondson, Brian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process of mixing material particularly suitable for the mixing of ingredients to form a built non-soap detergent bar. Material to be mixed is passed through a housing closely fitting a plurality of circular mixing elements arranged in interengaging and overlapping relationship on two driven parallel rotor shafts. Each of the mixing elements has openings therethrough and the material passes through the housing in the longitudinal direction of the shafts with the majority of the material passing through the openings. The openings comprise apertures within which a slug of material is formed by the passage of the material therethrough, and at least part of the slug is not affected by the …
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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 June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
- 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.