Brazing aluminium
CA 1055318 A · Owner: Alcan Research And Development Limited · Inventors: Cooke, William E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of joining aluminium components by means of an aluminium brazing alloy having a melting point lower than that of the aluminium components in, which the assembled components are heated to a temperature above the melting point of the brazing alloy and below the melting point of said components in the presence of a potassium fluoaluminate flux which is, essentially free of unreacted KF characterised in that the flux and the brazing alloy is applied to the surface of at least one of the components as an aqueous slurry of finely divided flux and metal powder the film is, then dried and the components are brazed (after assembly if necessary) by heating in a dry, oxygen-free inert gas …
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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 29, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 29, 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.
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.