Apparatus for conversion of kinetic energy
CA 2176141 A1 · Owner: Hall, Wilfred · Inventors: Luneng, Liv; Hall, Wilfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
It is disclosed a device for conversion of kinetic energy from an external source e.g. wind or flowing water, into thermal energy by means of internal friction in a liquid. The device comprises a pump (2) connected to a shaft (10) receiving kinetic energy front said external source. The pump (2) is provided for pumping the liquid in a circuit (4) comprising a unit (3) for converting the kinetic energy in the liquid into heat. The unit (3) is a throttle valve (3) which decelerates the liquid in the circuit (3) so that heat is generated. The circuit comprises two concentric tubes (32, 33) where a first tube (33) is located within a second tube (32) and heated liquid downstream of 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 November 8, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 8, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2016.
- 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.