Power transformer/inductor
CA 2276399 A1 · Owner: Asea Brown Boveri Ab · Inventors: Ming, Li; Leijon, Mats; Fromm, Udo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a power transformer/inductor comprising at least one winding. The windings are designed by means of a high-voltage cable comprising an electric conductor, and around the conductor there is arranged a first semiconducting layer, around the first semiconducting layer there is arranged an insulating layer and around the insulating layer there is arranged a second semiconducting layer. The second semiconducting layer is earthed at or in the vicinity of both ends (261, 262; 281 282) of each winding and , furthermore one point between both ends (261 262; 281, 282) is directly , earthed.
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 February 2, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 2, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 2, 2020.
- 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.