Method and apparatus for forming a material web
CA 1049215 A · Owner: Aktiebolaget Svenska Flaktfabriken · Inventors: Gustavsson, Lennart
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A method and apparatus for forming a material web by causing a flow of particles, for example fibres which are, distributed in a gaseous medium flow into a distribution chamber, to precipitate on a depositing surface provided in the distribution chamber, the particle flow is exposed to a control flow of a gaseous medium directed from at least one side of the flow against the same, and the impulse of the control flow is caused to vary in size whereby the particle flow is distributed across the width of the depositing surface. The distribution means comprise a supply member for a control gas flow provided at least at one side of the particle flow which member is, …
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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 February 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 27, 1996.
- 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.