Filaments dispersing device
CA 2083394 A1 · Owner: Mitsui Petrochemical Industries, Ltd. · Inventors: Kobayashi, Yoshinori; Ishii, Hiroshi; Hata, Katsuya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An object of the present invention is to provide a dispersing device which can disperse filaments uniformly and widely on a moving collector surface by suppressing the turbulence of an air flow as a carrier medium for the filaments to thereby reduce the disturbance of the filaments. The dispersing device (1) of the present invention is formed as a dispersing pipe consisting of a pair of dispersing plates (2) vertically extending so as to be opposed to each other and a pair of side plates (3) connecting the dispersing plates. The dispersing pipe has an upper end formed with a filaments inlet and a lower end formed with an oblong filaments outlet (5) surrounded by the dispersing plates and …
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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
- Filed April 9, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 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.