Metal fusion bonding – Solder form
Reexamination Certificate
2005-07-06
2008-11-18
Johnson, Jonathan (Department: 1725)
Metal fusion bonding
Solder form
C228S245000, C228S262100, C228S262500, C228S262510, C228S262900, C148S518000, C148S528000, C428S650000, C428S651000, C428S652000, C428S658000
Reexamination Certificate
active
07451906
ABSTRACT:
A brazing product for low temperature fluxless brazing comprises a filler metal-forming composition which melts in the range from about 380-575° C. The filler metal-forming composition comprises zinc optionally in combination with aluminum and/or silicon, and further comprises at least one braze promoter selected from nickel, cobalt, iron and palladium. The filler metal-forming composition may comprise a single layer or may comprise a number of distinct layers. The brazing product may take the form of a brazing preform or a brazing sheet or casting in which the filler metal-forming composition is deposited on a non-consumable substrate. The substrate may preferably comprise aluminum or an aluminum alloy, but may instead be comprised of one or more metals other than aluminum.
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Cheadle Brian E.
Kisielius, legal representative Stefanija
Kozdras Mark S.
Krueger Robert H.
Liang Feng
Beveridge Rachel E.
Dana Canada Corporation
Howrey LLP
Johnson Jonathan
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