Installation for flocculating coagulable suspensions, in particular for cleaning the backwater from de-inking plants used for waste-paper preparation
CA 1287194 C · Owner: Kleinschnittger, Hans Hermann · Inventors: Kleinschnittger, Hans Hermann; Bassler, Wolfgang; Kahmann, Albrecht
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus to flocculate coagulable substances in suspensions as are used in particular for purifying the backwaters from de-inking plants used in waste-paper preparation has a tank, (4) to which the suspension containing flocculating agent and air is supplied from a reservoir (1) through a line (2). The tank (4) contains a rotor with a vertical shaft (34) from which two arms, (35, 36) at different levels extend outwards. The suspension that is to be purified is supplied through the shaft (34) and the upper arm (36) and the clear water is scooped up through the lower arm (35) that subtends an acute angle with the upper arm (36). The substances that rise to the surface and float are …
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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 July 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 30, 2008.
- 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
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.