Road surface recycler
CA 2049064 A1 · Owner: Bp Australia Limited · Inventors: Hall, Kenneth D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A road surface recycler for cutting road pavement material from a road, pulverizing that material, mixing it with a liquid binder and relaying it onto the road surface. A single mobile structure carries a reclaimer drum (14) for cutting paving material from the road, a pulverizer (22) for breaking up the material and mixing it with a binder and a delivery means (56) for relaying the material onto the road. The reclaiming drum (14) is driven in a direction (17) to cut downwardly into the road surface (40) and pass the cut material rearwardly under the drum for delivery to the pulverizer. The pulverized material is delivered to a surge bin (51) which can accumulate material until it can be …
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 16, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 16, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 16, 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.