Metal fusion bonding – Process – Using high frequency vibratory energy
Reexamination Certificate
2004-09-30
2010-10-26
Wyszomierski, George (Department: 1793)
Metal fusion bonding
Process
Using high frequency vibratory energy
C228S001100, C228S124600, C156S073100, C156S580100
Reexamination Certificate
active
07819302
ABSTRACT:
An aluminum tubular unit for long-term, leak-free storage of fluids is formed in which an aluminum cap is ultrasonically welded to an end of the aluminum tube. The ultrasonic weld is formed from a device capable of producing a torsional vibration pattern. The ultrasonic welding of the cap to the tube eliminates the use of seals and pins to seal the cap to the tube and further eliminates the need for having a hole in the cap to mechanically couple the respective end cap to the cylindrical tube. Furthermore, since ultrasonic welding does not generate significant heat, highly volatile and flammable fluids can be present within the tube when the caps are ultrasonically welded to the cylindrical body. In addition, one or more fins used may also be welded to the outside diameter of the cylindrical body using a related ultrasonic welding process.
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Bolser David R.
Graff Karl F.
Trapp Timothy J.
Aboagye Michael
Ostrager Chong & Flaherty & Broitman P.C.
The Boeing Company
Wyszomierski George
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