Device for distributing particles
CA 2324465 A1 · Owner: Valmet Fibertech Ab · Inventors: Salo, Heikki; Johansson, Lars-Erik; Jonasson, Stellan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a separation means (9) for distributing wood fibers on a running web (10) for the manufacture of wood fiberboard which wood , fibers are supplied dispersed in a carrier gas from a distribution means (6) where the separation means (9) comprises a rotary roll (12) and means (8) for supplying the carrier gas with dispersed fibers substantially tangentially to said roll (12). The essential feature of the invention is that the carrier gas and wood fibers are separated from each other in that said roll (12) rotates at a speed substantially exceeding the speed of the supplied carrier gas that , the wood fibers are discharged through an opening (16) and that the …
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 March 22, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 2021.
- 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.