Waste water treatment system with aeration and circulation means
CA 1160369 A · Owner: Rongved, Paul I. · Inventors: Rongved, Paul I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flowing liquid system in which means are provided for simultaneously aerating and circulating said liquid comprising surface aerator means cooperating with partition means extending into a communication section between a first channel and a second channel with the aerator means located on the second channel side of and separated from the partition means and closer to the partition means than to the outside of the communication section said, system being particularly suited for use in an activated sludge waste water treatment system.
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
- Granted January 10, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 10, 2001.
- 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.