Delivery device
CA 2243480 A1 · Owner: May, Karl · Inventors: Sattler, Heinz; Busch, Klaus; May, Karl
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a delivery device comprising a housing (1) into which opens the delivery pipe (2) of a low temperature carbonization drum (3). A residue-delivery shaft (7) emerges from the housing (1) and opens into a conveyor device which terminates in an outlet (14). A level-measuring device (8) is disposed on the residue-delivery shaft (7). According to the invention the conveyor device comprises a profiled partition floor (9) on which a bar screen (10) is integrally formed at the end remote from the opening of the residue-delivery shaft (7). The bar screen (10) covers a discharge opening (13) for fine residues and terminates at an outlet (14) for coarse residues. A …
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 16, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 16, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 2019.
- 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.