Apparatus for measuring the mass throughput of a flow of pourable material according to the coriolis principle
CA 2080796 C · Owner: Hafner, Hans Wilhelm · Inventors: Hafner, Hans Wilhelm
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For increasing the measuring accuracy and reducing the maintenance of a Coriolis force measuring apparatus it is suggested to form the rotating disk of the measuring wheel as a cone-type interior wall and to orient the center line of the guiding blades formed between the interior wall and the exterior wall at an acute angle in respect of the axis of the measuring wheel. Furthermore, it is suggested to mount the measuring wheel on a cantilever laterally projecting out of the housing and supported at its exterior end on a load cell of the torque measuring device.
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 October 16, 1992 and granted December 24, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2014.
- 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.