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Expired Canadian patentCanada

Flux breaker for submerged arc strip cladding of metallic work pieces

CA 1054684 A · Owner: Combustion Engineering · Inventors: Overby, Clarence W.

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

The invention relates to an improvement in apparatus for carrying out the submerged arc surfacing of metallic work pieces with metal electrode strips melting in an electric arc while forming welding beads upon the work piece. A slag breaker comprising a series of parallel plate portions disposed substantially perpendicular to the surface of the electrode strip is positioned on the leading side of the electrode strip adjacent the region of the electric arc. The slag breaker serves to break up an accumulation of fused flux particles which tend to form a sheet in front of the welding arc which, if permited to form would block the flux feed into the welding arc on the leading side. The slag …

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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 May 15, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 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.
Filed—
GrantedMay 15, 1979
Term endedMay 15, 1996
Patent numberCA 1054684 A
Classification (IPC)B23K9/04 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedMay 15, 1979Term endedMay 15, 1996

Sources & verification

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