Terminal structure of superconducting cable
CA 2564235 C · Owner: Sumitomo Electric Industries, Ltd. · Inventors: Ashibe, Yuuichi; Masuda, Takato
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A terminal structure of a superconducting cable is provided that is capable of preventing degradation in airtightness of a seal provided on the boundary between a , room-temperature side and a cryogenic side for a long-term use. The terminal structure includes a terminal of a superconducting cable (100) a bushing (10) , providing , electrical conduction with a superconducting conductor (100a) of the cable (100), and a , refrigerant bath (11) housing the terminal and the bushing (10). The refrigerant bath , (11) includes a liquid nitrogen layer (13) in its cryogenic side and a nitrogen gas layer , (14) in its room-temperature side that are adjacent to each other. In the nitrogen gas , …
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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 February 15, 2005 and granted August 14, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 15, 2025.
- 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.