Winding for a transformer or a coil
CA 2412346 C · Owner: Abb Technology Ag · Inventors: Weber, Benjamin; Otto, Meinolf; Hoffmann, Roland
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a winding for a transformer or a coil having a ribbon electrical conductor (14) and having at least one ribbon insulation material layer (16) which is fitted to the electrical conductor (14) or is applied as ribbon material to the conductor. The electrical conductor (14) and the at least one ribbon insulating material layer (16) are wound to form turns around a winding core (10) along a winding axis (12). Furthermore the individual turns of the winding have a predetermined winding angle (40) with respect to the winding axis (12) cf the winding core (10) and a number of turns which are located axially alongside one another form one layer. At least two radially …
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 November 21, 2002 and granted February 8, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 21, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2024.
- 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.