Controlled gravity accumulation conveyor
CA 2440735 A1 · Owner: Brouwer, Gerald A. · Inventors: Lupton, Clint R.; Brouwer, Gerald A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gravity conveyor(20) includes one or more zones(1,2,3,4) with each zone having at least one brake(30) associated therewith. A controller turns the brakes(30) on for each zone according to various programmable conditions. The downstream-most zone may have its brakes turned on whenever a package(26) is present at the end(24) of the conveyor. Any of the zones(1,2,3,4) may have their brakes turned on in a pulsed manner. The zones may also have their brakes(30) turned on in other situations such as simultaneous blockage of , that zone with another zone the initial sensing of the leading edge of an article, as well as in other situations.
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 March 13, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 13, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 13, 2024.
- 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.