Gas-pressurized electrical switch with current-generated magnetic field for assisting arc extinction
CA 1045663 A · Owner: Bbc Brown Boveri And Company Limited · Inventors: Ruffieux, Stanislas; Schade, Ekkehard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title, Gas-Pressurized Electrical Switch With Current-Generated Magnetic Field For Assisting Arc Extinction Abstract Of The Disclosure, A gas-pressurized electrical switch includes a casing provided with a transverse wall dividing the interior into two quenching chambers. A longitudinally movable contact member is supported within one of the chambers and includes a nozzle pipe projecting through the transverse wall into the other chamber for entry into an annular stationary contact member which is surrounded by a magnetic-field producing coil having one end connected to one terminal of the switch. A pin member is located centrally within the stationary contact member and is entered into the …
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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 January 2, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 1996.
- 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.