Production of aluminum brazing sheet
Patent 4146164 Issued on March 27, 1979. Estimated Expiration Date: 
November 9, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
November 9, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2800709 3321828 3853547 3863453 3917151 Brazing materials Patent #: 3963454 InventorsAssigneeApplicationNo. 05/849997 filed on 11/09/1977US Classes:228/158, Rolling228/190, Of concurrently bonded stacked laminae228/233.2, Specific rate of varying temperature or schedule of distinct temperatures228/235.3, At specific temperature level228/262.51, Brazing or soldering428/654Next to Al-base componentExaminersPrimary: Lanham, C.W.Assistant: Ramsey, K. J. Attorney, Agent or FirmInternational ClassesB23K 20/04 (20060101)B23K 35/28 (20060101) AbstractAluminum brazing sheet is produced by providing a composite assembly comprising an ingot of aluminum alloy and a layer of an aluminum brazing alloy on at least one side of the ingot. Provided on both sides of the composite assembly is a second layer of aluminum alloy substantially free of eutectic or elemental silicon. The composite assembly and the second layer are hot bonded and formed into brazing sheet by steps including hot rolling in a reversing mill followed by hot rolling in a continuous mill.Other References
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