Sludge thickening
CA 1106510 A · Owner: Simon-Hartley Limited · Inventors: Austin, Eric P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for thickening sludge is disclosed herein. The apparatus includes an endless band of mesh material which, in one section of the apparatus has a, generally horizontal run extending between spaced guides. The horizontal run is supported between the guides on a structure which permits liquid to drain freely through the band. A structure is provided for introducing sludge to be treated into the apparatus, together with means for dosing the sludge to be treated with a cationic polyelectrolyte. A tank for receiving and holding the dosed sludge for a sufficient period of time to allow development of a flock structure is also provided. A supply means is also provided for supplying …
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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 August 4, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 1998.
- 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.