Roller or belt conveying device for sheet-like or plate-like workpieces of low specific mass
CA 2239338 C · Owner: Morisod, Jean-Bernard · Inventors: Morisod, Jean-Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This conveying device for sheet-like or plate-like workpieces having low specific mass, such as paper or cardboard, comprises two conveying elements arranged side by side along the trajectory of said workpieces for changing the, orientation around axes which are perpendicular to said sheets or plates. Separate drive means with adjustable speeds are, connected to each of said conveying elements. A caisson provided with a fan is used to move these workpieces against said conveying elements in order to transmit different speeds to each of the surface parts of said workpieces in contact with said respective conveying elements.
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 May 29, 1998 and granted April 29, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 2020.
- 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.