Sewage-aeration system, and method for the operation and use thereof
CA 1252233 A · Owner: Kaelin, Joseph R. · Inventors: Kaelin, Joseph R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A surface-aeration rotor is provided with a carrierpart connected to a vertical drive-shaft. Secured adjustably to the carrier-part are several liquid-conveying units each consisting of a scoop and two flow-guiding walls. In order to improve the oxygen-input performance per kilowatt of rotordrive power, the liquid-conveying units are designed in such a manner that the scoops are disposed in a plane which is twisted and which is curved in the direction of rotation of the rotor, whereby the jets of liquid emerge from the rotor standing on edge.
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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 April 4, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 4, 2006.
- 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.