Current transformer
CA 1184981 A · Owner: Mitsubishi Denki Kabushiki Kaisha · Inventors: Morishita, Hikozo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosed current transformer comprises a tubular electrically conducting member of a circular cross section connected to one end of a primary winding in the form of a tubular electrically conducting coil having a single turn, a cruciform conducting member coaxially disposed within the tubular member to be connected to the other end of the coil, and a hollow cylindrical dielectric member coaxially disposed within the tubular member to form an incoming and an outgoing flow path between the tubular and dielectric members and between the dielectric and cruciform members respectively. The tubular coil and the tubular member are wrapped in an insulating member and a secondary winding is …
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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
- Granted April 2, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 2, 2002.
- 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.