Tandem brake roller system
CA 2041847 C · Owner: Agnoff, Charles · Inventors: Agnoff, Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tandem braking system for use in gravity conveyors to control the speed of loaded pallets travelling thereon especially pallets which have non-continuous support surfaces or support surfaces which are aligned perpendicular to the direction of travel. A brake roller is mounted below the conveyor support plane. Two floating rollers with pliable surfaces are rotatably mounted above the brake roller and rise above the conveyor support plane. Engagement of the tandem brake roller causes downward movement and compression of the floating rollers and causes a braking force to be exerted on the pallet base.
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 6, 1991 and granted September 24, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 6, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 6, 2013.
- 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.