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Canadian application, no grantCanada

Safety apparatus for superconducting magnetic energy stored system

CA 2022599 A1 · Owner: Westinghouse Electric Corporation · Inventors: Logan, James Randall; Marschik, David

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A self contained self charging automatic, hydraulic activation mechanism (AHAM) for a superconducting energy magnetic storage (SMES) system is disclosed. The AHAM is operatively coupled to arc activated switches disposed across a superconducting coil to automatically close the switches upon a coolant dump. The arc activated switches are also self actuating and close in response to arcing across the switch contacts or across spark gaps provided on the switches.

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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 August 2, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 2, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 2, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 2, 1990
GrantedNo grant recorded
Term endedAugust 2, 2010
Patent numberCA 2022599 A1
Classification (IPC)H02H7/04

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedAug 2, 1990Term endedAug 2, 2010

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.