Device for the ultrafiltration of a pressurised high- temperature liquid
CA 1270447 C · Owner: Riviere, Jacques · Inventors: Riviere, Jacques; Dagard, Philippe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Device for the ultrafiltration of a pressurised hightemperature liquid, ABSTRACT OF THE TECHNICAL CONTENT OF THE INVENTION The device possesses, inside a pressure-resistant casing (1), a second casing (11), to which are fastened tube plates (15,16) carrying tubes (14) forming the ultrafiltration wall, and a first set of partitions inside the second casing (1) for channelling the flow of the filtrate. A second set of partitions (27) arranged in the casing (11) above the upper tube plate (16) and partitions placed in the casing (1) underneath the lower tube plate (15) make it possible to channel the fluid to be purified and the concentrate. The part of the filter which incorporates the tubes …
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 June 19, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 19, 2007.
- 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.