Apparatus for making a spun fleece from endless synthetic-resin filament
CA 1280263 C · Owner: Balk, Hermann · Inventors: Balk, Hermann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for making a spun fleece comprises a spinning nozzle or spinneret system, a cooling shaft a stretching gap, a diffuser shaft, a continuously moving fleece delivery conveyor and a device for feeding process air and for pulling or removing outflowing air through the fleece delivery conveyor. The cooling shaft has a shaft wall provided with a plurality of air orifices. Because of that process air required for the cooling is fed into the cooling shaft. The air flow at least partially is pulled through the fleece delivery conveyor and the spun fleece formed by the deposited endless filament loops. The deposited length of the endless filament loops is measured over the spun fleece width …
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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 19, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 19, 2008.
- 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.