Mining system
CA 2463048 A1 · Owner: Smith, Stephen Peter · Inventors: Trevis, Aaron James; Smith, Stephen Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mining system to convey mined materials (eg. coal) from a mining machine (10) to a remote location has a crushing unit (20) receiving the mined material from the mining machine (10) via a surge bin (21). The material is crushed and sized and mixed with water to form a slurry in a pumping unit (30). Slurry pipes (41-43) interconnect pumps (31-33) on the de-watering unit (50) to convey the slurry to the de-watering unit (50) from which it can be conveyed by fixed conveyors (60) to the remote location. The slurry pipes (41- 43), and return water pipe(s) (51), have intermediate portions (41a-43a) suspended from a monorail (106) and/or mounted on a sled (206) and flexible , end portions …
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 31, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 31, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 31, 2023.
- 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.