Basket profile for screens
CA 2067108 C · Owner: Beloit Technologies, Inc. · Inventors: Leblanc, Peter Edmond; Ray, David Elliot
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A replaceable screen structure for a stock screen wherein stock slurry for making paper is passed through a screen (18) with the rejects going to a reject outlet (12) and the accepts passing through openings in the screen to an accepts outlet (14) with the, screen (18) having projections (25 26, 27) and a rotor (15) inducing a pulsating induced flow along the profile surface with, jections on the surface having an inclined ramp (29) of less than about 45° and a 90° downstream wall (31) and accepts flow openings between the projections positioned closer to the upstream projection than the downstream projection.
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 26, 1990 and granted April 15, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 26, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 2012.
- 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.