Variable volume filter or concentrator
CA 1282345 C · Owner: Memtec Limited · Inventors: Ford, Douglas Lyons; Kopp, Clinton Virgil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A concentrator for concentrating the fine solids of a liquid feed suspension has a shell (100) within which there is a bundle of microporous fibres (102). Pressurized feed suspension is introduced through inlet (105) and passes over the external walls of the fibres (102) with the clarified liquid being drawn from the lumens of the fibres (12) and the concentrated feed being discharged through outlet (107). The solids retained within the shell are removed by first applying a pressurized liquid and then applying a gas at a pressure sufficient to ensure that the gas will pass through the larger pores of the fibres to remove the solids from the shell (11) through outlet (17) to an external …
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 April 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 2, 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
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.