Stock material or miscellaneous articles – All metal or with adjacent metals – Foil or filament smaller than 6 mils
Reexamination Certificate
2006-01-31
2006-01-31
Koehler, Robert R. (Department: 1775)
Stock material or miscellaneous articles
All metal or with adjacent metals
Foil or filament smaller than 6 mils
C428S615000, C428S635000, C428S650000, C428S652000, C428S656000, C428S680000, C428S924000, C428S926000, C428S941000
Reexamination Certificate
active
06991855
ABSTRACT:
Reactive foils and their uses are provided as localized heat sources useful, for example, in ignition, joining and propulsion. An improved reactive foil is preferably a freestanding multilayered foil structure made up of alternating layers selected from materials that will react with one another in an exothermic and self-propagating reaction. Upon reacting, this foil supplies highly localized heat energy that may be applied, for example, to joining layers, or directly to bulk materials that are to be joined. This foil heat-source allows rapid bonding to occur at room temperature in virtually any environment (e.g., air, vacuum, water, etc.). If a joining material is used, the foil reaction will supply enough heat to melt the joining materials, which upon cooling will form a strong bond, joining two or more bulk materials.
REFERENCES:
patent: 3705373 (1972-12-01), Cameron
patent: 3729046 (1973-04-01), Kennedy et al.
patent: 4454379 (1984-06-01), Cleveland et al.
patent: 4778649 (1988-10-01), Niino et al.
patent: 4836982 (1989-06-01), Brupbacher et al.
patent: 4889745 (1989-12-01), Sata
patent: 4909842 (1990-03-01), Dunmead et al.
patent: 4990180 (1991-02-01), Halverson et al.
patent: 5062025 (1991-10-01), Verhoeven et al.
patent: 5093148 (1992-03-01), Christodoulou et al.
patent: 5217816 (1993-06-01), Brupbacher et al.
patent: 5266132 (1993-11-01), Danen et al.
patent: 5381944 (1995-01-01), Makowiecki et al.
patent: 5490911 (1996-02-01), Makowiecki et al.
patent: 5491003 (1996-02-01), Akahira
patent: 5527442 (1996-06-01), Sekhar et al.
patent: 5538795 (1996-07-01), Barbee, Jr. et al.
patent: 5606146 (1997-02-01), Danen et al.
patent: 5773748 (1998-06-01), Makowiecki et al.
patent: 5786129 (1998-07-01), Ellis
patent: 5913256 (1999-06-01), Lowden et al.
patent: 6203892 (2001-03-01), Matsumura et al.
patent: 6203897 (2001-03-01), Koizumi et al.
U.S. Appl. No. 10/247,998, filed Sep. 20, 2002, Timothy P. Weihs et al.
L. Battezati et al., “Solid State Reactions in Al/Ni Alternate Foils Induced By Cold Rolling and Annealing,” Acta Mater., vol. 47, No. 6, pp. 1904-1914 (1999). (no month given).
T . Weihs, “Self-Propagating Reactions in Multilayer Materials,” Handbook of Thin Film Process Technology, pp. F7:1-F7:13 (1997) (no month given).
Knio Omar
Reiss Michael
van Heerden David
Weihs Timothy P.
Johns Hopkins University
Koehler Robert R.
Lowenstein & Sandler PC
LandOfFree
Reactive multilayer foil with conductive and nonconductive... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reactive multilayer foil with conductive and nonconductive..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reactive multilayer foil with conductive and nonconductive... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3592690