Inertial energy storage device
CA 2422931 A1 · Owner: Schmidt, Michel · Inventors: Schmidt, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a device wherein the coil tube (12) forming the condenser of a first heat pump assembly and the coil (13) which forms a second assembly are each fixed on vertical grids (28 29). Said grids are arranged parallel to each other and are embedded in the concrete block (3) which forms one of the energy storage units incorporated in the system. The grids consist of concrete iron bars welded together into a network with square and rectangular meshes. The means fixing the tubes at certain intersections of the grid are clamps of a particular type. The grids the tubes and the clamps are embedded in the concrete block (3).
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 September 20, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 20, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 20, 2023.
- 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.