A transformer having a stacked core with a split leg and a method of making the same
CA 2601506 C · Owner: Abb Technology Ag · Inventors: Sarver, Charlie; Pauley, Will E.; Horton, Rush B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a transformer having a stacked core (210) which includes top and bottom yokes (212,214) and first and second outer legs (218, 220) . The core also includes an inner leg(216) that is formed from a pair of stacked plates, which abut each along a seam that extends in the longitudinal direction of the inner leg (216) . Each of the upper and lower yokes (212, 214) may be formed from a single stack of plates or a plurality , of stacks of plates. Each of the inner and outer legs (218 220) may also be , formed from a single stack of plates or a plurality of stacks of plates. The cross-section of the core may be rectangular or cruciform.
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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 27, 2006 and granted June 11, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 27, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.