Method and pump for impelling water in waters
CA 2326112 A1 · Owner: Skaarup, Erik · Inventors: Skaarup, Erik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for impelling water in e.g. a lake (2) by with a pump (1) transforming the waves of the lake into whirling water (14) which is sent down towards the bottom (4) of the water area. The pump comprises a horizontally extending whirl pipe (7) with a longitudinal slot (8) and at least one preferably curvedly extending baffle (9) with a top front edge (10a) mainly facing a wave front in the lake in operation and a bottom rear edge (10b) extending along the slot. Both ends of the whirl pipe are fluid-connected to a submersible pipe (16) extending down towards the bottom of the water area. The pump is simple and reliable as it functions without movable parts. The pump can without …
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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 March 23, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 23, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 23, 2021.
- 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.