Device for granulating a thermoplastic, which is extruded from nozzles
CA 2454071 A1 · Owner: Rieter Automatik Gmbh · Inventors: Muerb, Reinhardt-Karsten
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a device for granulating thermoplastics that are extruded from nozzles, the latter being provided in a nozzle disc in a substantially circular arrangement. Blades which rotate about a blade carrier , shaft and are held by a bell-shaped blade carrier in an oblique position in relation to the radial direction, sweep over said nozzles. The blade carrier shaft runs through the centre of the circular assembly a cooling medium is , fed to the nozzle disc and the blades to cool the granulated plastics and an annular intermediate chamber, traversed by the cooling medium from the interior to the exterior, is located between the blade carrier and the nozzle disc. The …
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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 July 23, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 23, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 23, 2024.
- 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.