Pump vanes for a decanter centrifuge feed chamber
CA 2431581 A1 · Owner: Alfa Laval Separation Inc. · Inventors: Corner-Walker, Nicholas; Caldwell, John, W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a mist pump for a conveyor of a decanter centrifuge. The mist pump is incorporated into the feed chamber (102) and prevents mist from leaving the feed zone and building up a layer of feed in the conveyor hub (100). The mist pump includes a plurality of vanes (136) attached to, extending radially inward from and spaced about an interior surface of the sidewall (110) of the feed chamber. The mist pump also includes a ring (130) positioned coaxially about the longitudinal axis attached to , each of the accelerating vanes (128) and spaced radially inward from the sidewall to provide a plurality of return openings (134) defined by the ring and 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
- Filed September 7, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 7, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 7, 2023.
- 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.