Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Reexamination Certificate
2005-06-28
2005-06-28
Koehler, Robert R. (Department: 1775)
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
C428S924000, C428S933000, C165S133000, C165S180000, C165S905000
Reexamination Certificate
active
06911267
ABSTRACT:
The present invention is directed to a brazing sheet comprising an aluminum 3xxx series core alloy wherein at least one side thereof is provided with an aluminum clad material comprising from 0.7-2.0% Mn and 0.7-3.0.0% Zn, wherein the clad is capable of being used as an Inner-liner of a heat exchange product. In one embodiment one side of the core alloy is provided a material that comprises from 0.7-2.0% Mn and 0.7-3.0% Zn and the other side of the core is provided with an aluminum alloy comprising at least 5.5% Si. Thee are further provided methods for preparing brazing sheets as described herein as well as methods for use of brazing sheet materials including as tube stock and as heat exchangers, as well as other applications.
REFERENCES:
patent: 6667115 (2003-12-01), Goodrich et al.
Anna Ortnas, et al. “Sagging Resistance of Braze Clad Fin Material for Evaporators and Condensers” Vehicle Heat Exchanger and Transfer Design, No. 960246, 1996, pp. 11-16, no month given.
J. J. Garcia, et al., “Internal/Corrosion/Erosion Testing of Welding Aluminium Radiator Tubes for Passenger Cars and Heavy Duty Trucks” ImechE, 1995, pp. 257-267, no month given.
S. Palmer, “Internal Corrosion Testing of Aluminum Radiator Tube Alloys” Century Aluminum Corporation, pp. 1-19, no date.
Connor Zayna M.
Goodrich H. Scott
Johnson Gregory R.
Palmer Scott L.
Connolly Bove & Lodge & Hutz LLP
Koehler Robert R.
Pechiney Rolled Products
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