Tank-type compressed-gas circuit-interrupter of the puffer type having improved assembly features
CA 1107795 A · Owner: Westinghouse Electric Corporation · Inventors: Freeman, Willie B.; O'Reilly, Frank R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved grounded-tank-type of compressed-gas circuit-interrupter is provided having improved assembly features for making provision for a separate subassembly of the gas-interrupter gas modules, with their actuating linkage affixed to a mounting support plate. Subsequently as a, subsequent separate assembly operation the said mounting, support-plate constitutes tile lower closure member of an upstanding metallic grounded outer tank assembly which is, dropped, as a final assembly operation over the aforesaid, subassembly and bolted thereto. Another feature of the instant invention includes the upper curved dome portion of the outer tank having a predetermined radius of curvature, with …
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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 August 25, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 1998.
- 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.