Hydraulic transportation apparatus for solid materials
CA 1064992 A · Owner: Hitachi, Ltd. · Inventors: Sakamoto, Masakatsu; Karino, Takafumi; Uchida, Kenji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In apparatus for the transporation of particulate solid material having a wide range of particle sizes a liquid, is added to the material to produce a first slurry which is, transported hydraulically. After transporation coarse particles are removed from the slurry to produce a second slurry and waste is produced by combining part of the second slurry with a liquid produced from the remainder of the second slurry from which fine particles have been removed by a solid-liquid separator. The waste is returned to the transporation source and is used as the liquid for producing the first slurry.
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
- Granted October 23, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 23, 1996.
- 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.