Belt driven roller conveyor
CA 2357759 A1 · Owner: Schuitema, Dennis J. · Inventors: Nguyen, Thanh V.; Schuitema, Dennis J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A roller conveyor belt driver system for a roller conveyor (10) includes a closed loop belt (52) having a continuous driving surface (172) and a noncircular base (64) and a plurality of pulleys (34 54) which support and , engage said non-circular base for at least partially laterally restraining the belt from rotation. A first group of pulleys (54) are constructed and arranged to position the belt in non-orthogonal orientation with respect to the rollers (24) of the conveyor for contacting one or more rollers with the driving surface of the belt. Optionally, the belt driver system includes a lateral restraint (60) associated with a respective pulley of the first group of pulleys to …
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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 January 7, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 7, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2022.
- 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.