Resistor applications for high-power circuit breakers
CA 1075744 A · Owner: Westinghouse Electric Corporation · Inventors: Leeds, Winthrop M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
41,275, RESISTOR APPLICATIONS FOR, HIGH-POWER CIRCUIT BREAKERS ABSTRACT OF THE DISCLOSURE, A resistor assembly together with a serially-, connected resistor break is connected in parallel, or, shunting relationship to an interrupting assembly, and ar-, ranged so that the resistor contacts remain closed while the main power-interrupting contacts open and thereby, divert the series line current through the resistor assemblage. This reduces the magnitude of the power-transmission linecurrent being interrupted, and lowers the rate of voltage rise across the main contacts so that arc reignition does not occur. During the closing operation of the circuitbreaker, the mechanical operating …
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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 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 15, 1997.
- 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.