Method, device and plant for cleaning irregular pieces consisting of different materials
CA 2308616 A1 · Owner: Toschi, Angelo · Inventors: Toschi, Angelo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method, a device and a plant for cleaning irregular pieces consisting of different materials, for example cast iron pieces with parts of compressed coal dust sticking thereon and coal pieces made of compressed coal dust with parts of a contaminating film adhering thereon wherein the cleaning of both , materials is carried out in only one cleaning device (1) comprising a cleaning jacket (2) which has a substantially horizontal longitudinal axis (3) is , rotatable in both directions of rotation is pivoted (4) in order to swing in , the vertical longitudinal plane and is provided with cleaning tools (12 12A) , which are fastened to said cleaning jacket (2) along jacket generating lines …
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 August 21, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 21, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 21, 2021.
- 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.