Flour milling machine
CA 2180388 C · Owner: Sakaki, Hideki · Inventors: Okamoto, Katsumi; Sakaki, Hideki; Satake, Satoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a flour mill for pulverizing grains at least a pair of metal rollers, having different peripheral speeds relative to each other are removably mounted, to respective rotary shafts in a cantilever form. The axial length of each metal, roller is between 100 and 500 mm and the peripheral speed of the high speed roller is between 12 and 30 m/sec. A cover is fitted to a milling chamber that houses therein the paired metal rollers and has a transparent member at least as a part thereof. With such an arrangement the rollers can be replaced with, ease and the milling operation carried out in the milling chamber can be easily, monitored through the transparent member.
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 July 3, 1996 and granted May 15, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 3, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2018.
- 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.