Tube conveyor with wheeled containers
CA 2024708 A1 · Owner: Marcu, Mihail L. · Inventors: Marcu, Mihail L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The tube conveyor according with the invention is made of: wheeled containers with main rolling swivel wheels in form of solid or pneumatic tires disposed like a bicycle - one in front and one in the back also the wheeled containers have lateral stabilizing swivel wheels; the said container having rotation shafts to allow rotation around a longitudinal axis, this shafts being supported on some journal bearings resting on the said main rolling swivel wheels; the wheeled containers having a cruise position where the said rotation shafts are fixed/indexed to the said bearings by indexing/fixing dogs these dogs being released/deindexed by cams rigidly associated with the mobile/rotary part of …
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 September 6, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 6, 2012.
- 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.