Flow control system
CA 1053370 A · Owner: National Research Development Corporation · Inventors: Henry, Robert M.; Beck, Maurice S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a process for controlling a particle flow system which is to be operated at slightly above the velocity at which saltation occurs, a cross correlation technique is used to determine the spread of particle velocities in the system and this is compared with a signal representing the desired spread to produce an error signal indicating the desired spread to produce an particle flow. A second cross correlation technique having a shorter intergration period, is used to determine the actual mean particle velocity and this is compared with the first error signal to produce a second error signal to control the flow rate of the conveying fluid.
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 April 24, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 24, 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.