Two wing non-intermeshing rotors for increased performance for usein internal batch mixing machines
CA 1286657 C · Owner: Nortey, Narku O. · Inventors: Nortey, Narku O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Non-intermeshing two-wing rotors for use in high intensity mixing machines of the batch type provide new sequences and new characteristics of dynamic interactions for achieving advantageously increased mixing effectiveness, improved performance and productivity for such machines. These new rotors are adapted for driving at unequal speed (unsynchronized rotation) or at equal speed (synchronized rotation) and, thus they are adapted for retrofitting into existing mixing machines. The optimum results are achieved by turning the two rotors at synchronous speed with a phase angle relationship of about 180° between rotors as shown by various well-known performance criteria. These criteria are …
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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 July 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 2008.
- 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
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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.