Filter press
CA 2429984 A1 · Owner: Outokumpu Oyj · Inventors: Bohnke, Bernd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A filter press (1) for the filtration of suspensions comprises a stack of , plate-like filter elements (5) which may be pressed against each other in a sealing manner in a parallel horizontal arrangement when in a filtering position. The filter elements (5) thus enclose a filter chamber in pairs defined on at least one side by a filtering medium. Furthermore the filter , elements (5) may be transferred to an emptying position in which the , neighbouring filter elements (5) have a separation from each other permitting , a removal of the filter cake from the filter chamber. According to the invention, in order to reduce the height of construction of said filter press (1), or with …
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 November 19, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 2023.
- 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.