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Expired Canadian patentCanada

Reconstituting a nuclear reactor fuel assembly

CA 1210534 A · Owner: Westinghouse Electric Corporation · Inventors: Shallenberger, John M.; Ferlan, Stephen J.

CIPO record

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

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Abstract From the Canadian patent

14 49,189, ABSTRACT OF THE DISCLOSURE, A method for reconstituting a nuclear reactor fuel assembly having its top nozzle adapter plate welded to its control rod guide thimble sleeves. Circumferentially cut the sleeves from the adapter plate below the weld. Separate the top nozzle from the cut sleeve 5. Obtain a modified top nozzle refashioned with a groove in its adapter plate control rod passageways. Insert the cut sleeves in the passageways of the modified top nozzle. Circumferentially bulge the sleeves into the grooves. A system for attachment of the top nozzle to the sleeves employing the above-described circumferential bulge and groove attachment.

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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 26, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 26, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 6, 1983
GrantedAugust 26, 1986
Term endedAugust 26, 2003
Patent numberCA 1210534 A
Classification (IPC)G21C3/02 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedSep 6, 1983Patent grantedAug 26, 1986Term endedAug 26, 2003

Sources & verification

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