Two-quadrant converter and its use as the control element of an energy store
CA 2039915 A1 · Owner: Dahler, Peter · Inventors: Hausler, Michael; Dahler, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Two-quadrant converter method of operating a two-, quadrant converter and its use as the control element of an energy store, A two-quadrant converter (8) having a connected superconducting magnetic memory (L) can be used as a chopper circuit or as an actuator for stabilizing networks and for short-term bridging of power failures in particular in connection with installations for uninterrupted power supply. In this arrangement the, two-quadrant converter (8) is connected on the input side to an intermediate d.c. circuit of a converter whose intermediate circuit voltage (Ud) is stabilised by an indirect capacitor (C). The magnetic memory (L) is charged and discharged, respectively with energy …
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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 April 5, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 5, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 2013.
- 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.