Conveying method and conveyor apparatus
CA 2001856 C · Owner: Akesaka, Toshio · Inventors: Akesaka, Toshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a conveying method and a conveyor apparatus for the inclined conveyance including the vertical conveyance of materials by superposed two belts and pinching and holding the material to be conveyed between the belts. The present conveying method is characterized by the fact that two belts which are oppositely arranged are superposed. Tensile forces in the direction of the width of the belts is applied to the said superposed belts. Pinching and holding forces for pinching and holding the material to be conveyed between the belts is generated in the superposed belts by the tensile forces, and the material to be conveyed is conveyed by moving the superposed belts …
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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 31, 1989 and granted March 26, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 31, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2011.
- 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.