Accumulating conveyor chain with controlled friction
CA 2260507 A1 · Owner: Clopton, Robert T. · Inventors: Clopton, Robert T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A conveyor system is provided, in which the drive chain which drives products along the conveyor has features that permit control of the threshold driving force that, will be reached before the chain's carrier rollers begin to rotate to permit accumulation of product on the conveyor. The threshold driving force is controlled, by friction members which are located between split portions of the carrier rollers, and by the angle of the outer surface of the carrier rollers. The steeper the angle, the greater the threshold force.
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 January 27, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 27, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 27, 2021.
- 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.