Digging chain continuous bulk unloader/reclaimer
CA 2105860 A1 · Owner: Seymour, Timothy H. · Inventors: Seymour, Timothy H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A continuous bulk unloader/reclaimer that utilizes a bucket conveyor digging chain (18) to remove material (16) from the holds (14) of vessels such as ships, barges, railroad cars pits, stockpiles etc. The conveyor chain (18) is comprised of an elastomer bushing (32) that allows for the bucket conveyor chain (18) to circulate at high speeds with increased durability.
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 12, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 12, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2014.
- 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.