Compression belt separation apparatus
CA 2131403 C · Owner: Kunig, Helmut · Inventors: Rather, Siegfried; Kunig, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for separating mixed material of different flowability comprises a hollow drum driven to rotate arid having a perforated outer drum surface about a portion of which is wrapped an endless compression belt adapted to apply pressure onto the hollow drum. For stripping material which remains on the outer surface of the hollow drum after compression a stripping blade is provided which is arranged to float essentially radially with respect to the drum.
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 September 2, 1994 and granted August 24, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 2, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 2, 2016.
- 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.