System for hydraulically generating mechanical energy
CA 2031989 A1 · Owner: Tremblay, John · Inventors: Tremblay, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for hydraulically generating mechanical energy comprises a chain device a pair of, rotatable wheels, and a reservoir containing liquid. The chain device defines a closed loop and comprises a series of spherical balls spaced apart from each other by a constant distance. The wheels each define a rim surface on which the chain device is mounted in order to enable longitudinal movement thereof and to guide the same as it moves longitudinally. These wheels have the same diameter, lie in a first common vertical plane, and rotate about respective rotation axes both lying in a second vertical plane perpendicular to the first one. The reservoir opens through a vertical tubular member …
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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 December 11, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 11, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 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.