Apparatus for measuring solid particle size in a flowing material
CA 2115208 C · Owner: Karhu, Lauri · Inventors: Karhu, Lauri
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an apparatus for measuring par- ticle size distribution in solid matter from flowing material containing solids in which apparatus a material feeding conduit (1) is provided with a turnable feeding nozzle (2) in order to feed the material by means of a guide member (10), alternately to a measuring channel (4) or to a by-pass channel (9). Moreover in the measuring channel (4) of the apparatus there is installed a measur- ing element (5) composed of two opposite measuring surfaces (6 7), one of which is arranged to be movable. The appar- atus also comprises a measurement registering device (16) and cleaning medium conduit (14) for cleaning the measuring surfaces (6 …
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 February 8, 1994 and granted June 12, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 8, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2016.
- 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.