Feed device and method for extruder
CA 2355321 A1 · Owner: Mendel, Kilian · Inventors: Sadinski, Robert L.; Mendel, Kilian; Brookes, Sean R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An extruder such as a reclaim extruder (10) includes a feed section (13) with a throat (15) into which a force feeder (32) is positioned to compact and feed reclaim material at a higher and more productive rate. The force feeder (32) includes three side-by-side augers (64 65, 66) pointed at the extruder screw axis (17). An AC variable frequency drive motor (41) drives a double sided cog belt (44) in serpentine fashion around respective pulleys or sheaves (43 46, 50, 52, 55, 57) for the augers (64 65, 66). Two of the augers (64, 66) are of one hand rotated in one direction (68, 69) and one (65) of opposite hand , rotated in the opposite direction (70). The pulleys or sheaves (43 46, …
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 January 4, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 4, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 4, 2022.
- 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.