Rotary reactor and lifter assembly
CA 2063387 A1 · Owner: Kuhn, Bruno R. · Inventors: Matter, Donald C.; Byerly, Harold L.; Falcone, Peter W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rotary reactor (20) having a cylindrical horizontally-oriented, chamber (22) lined with a refractory (38) for burning materials therein and a plurality of trough-like lifters (40) extending, along the interior surface of the chamber for lifting sand in the , chamber as the chamber rotates includes a lifter assembly (52 54) which provides a secure, long-wearing mounting mechanism for the lifters which minimizes the degradation of the attachment of the lifter by the intrusion of contaminants between the lifter and the refractory. The lifter assembly comprises a bolt (56) for attaching the lifter to the chamber, a split support cylinder (76) recessed into the refractory lining and coaxial …
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
- Filed April 30, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 30, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2013.
- 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.