Metal working – Means to assemble or disassemble – Multiple station assembly or disassembly apparatus
Reexamination Certificate
2005-02-18
2008-07-08
Hong, John C (Department: 3726)
Metal working
Means to assemble or disassemble
Multiple station assembly or disassembly apparatus
C072S056000
Reexamination Certificate
active
07395597
ABSTRACT:
An opposed current flow magnetic pulse forming and joining system in electrical communication with a magnetic pulse power supply having a positive connection and a negative connection. The system may be used in forming individual workpieces or joining multiple workpieces, including joining by magnetic pulse welding. The system includes a first section, a second section, an insulator, and a first and a second pair of conductors. The first and second sections cooperate to enclose the workpiece(s) and function to create an electromagnetic force similar to that produced by a single closed coil. The system is configured to achieve desirable current flow by minimizing inductance, inductive reactance, and impedance in the conductors. The pairs of conductors may incorporate closely spaced individual conductors, braided conductors, and coaxial conductors. The current flow in the individual conductors of each pair of conductors is opposed, as is the current flow through the sections.
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International Search Report and Written Opinion of the International Searching Authority for International Application No. PCT/US06/05072, mailed Sep. 24, 2007, 7 pages.
Shao Haiping
Zhang Peihui
Dawsey David J.
Edison Welding Institute Inc
Gallagher Michael J.
Gallagher & Dawsey Co LPA
Hong John C
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