An arrangement and a method for concentrating a suspension
CA 2120010 A1 · Owner: Sunds Defibrator Industries Ab · Inventors: Hoden, Ebbe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An arrangement for concentrating or thickening a liquid suspension of solid particles by screening the suspension comprises stationary, elongated screening conduits (10; 10A 10B). Each conduit, (10; 10A, 10B) is comprised of a relatively soft and flexible wire cloth, particularly a plastic wire cloth which has the form of , a vertical tube. The invention also includes the use of essentially vertical screening conduits (10; 10A 10B) constructed from, such wire cloth for the purpose of concentrating a suspension. When concentrating a suspension by means of such an arrangement liquid departs through the screening conduit wall. The suspension is introduced through the upper end of the conduit …
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
- Filed September 28, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 28, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 28, 2014.
- 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.