High strength aluminum alloy fin material for heat exchanger and method for production thereof
CA 2553910 C · Owner: Sugiyama, Haruo · Inventors: Oki, Yoshito; Sasaki, Tomohiro; Suzuki, Hideki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PROBLEMS To provide an aluminum alloy fin material for a heat exchanger which has , high strength and high heat conductivity after brazing and is excellent in , the resistance to sagging, erosion and self-corrosion and the in the sacrificial anode effect. MEANS FOR SOLVING PROBLEMS A method for producing an aluminum alloy fin material for a heat exchanger which comprises providing a molten aluminum alloy having , a chemical composition, in wt% that Si: 0.5 to 1.5%, Fe: 0.15 to 1.0% Mn: , 1.5 to 3.0%, Zn: 0.5 to 2.5%, with the proviso that the content of Mg as an impurity is limited to 0.05 , wt% or less, and the balance: Al and inevitable impurities casting the molten , alloy , …
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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 January 28, 2005 and granted March 4, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 28, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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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.