Tank construction in a bulk cargo transportation system consisting of a lorry and trailer
CA 2044602 A1 · Owner: Minkkinen, Risto · Inventors: Minkkinen, Risto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The object of the invention is a tank construction in a bulk cargo transportation system consisting of a lorry (16) and trailer (1), in which revolving cylindrical tanks (3 19) equipped with, parallel interior spirals (9) are supported on the chassis (2 20), of the lorry and trailer. The tanks are arranged to be placed sequentially by pushing the long cone of the first tank into the larger opening of the second tank, when by rotating the tanks (3 19), the bulk cargo moves from the first tank to the second. According to the invention the longer part of the cone compared to the cone of the second tank (19) is formed as an interchangeable point (10) to be attached to or removed from the …
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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 15, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 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.