Multiple bundle permeator
CA 2120923 A1 · Owner: Edwards, Donald William · Inventors: Goodwyn, Presley Person Jr.; Edwards, Donald William; Eckman, Thomas John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hollow-fiber membrane fluid-separation apparatus containing a plurality of hollow-fiber bundles (20, 21) is disclosed. The apparatus comprises a single-pressure container (22) with a center chamber (64) located in between facing ends (70 71) of each bundle , (20, 21). The center chamber (64) is in communication with an annular space (61) around adjacent bundles and a discharge tube (76) concentrically housed within a feed tube (36). The hollow-fiber membrane fluid separation apparatus is adapted for industrial performance with high volumetric efficiency and high solute rejection. A process for separation of fluids is also provided.
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 October 22, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 22, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 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.