Electric heating – Metal heating – Cutting or disintegrating
Reexamination Certificate
2006-10-24
2006-10-24
Evans, Geoffrey S. (Department: 1725)
Electric heating
Metal heating
Cutting or disintegrating
C205S665000, C219S069140
Reexamination Certificate
active
07126075
ABSTRACT:
A method and apparatus for electro discharge machining a passage through a work piece using a hollow electro discharge machining electrode and a corresponding flushing agent supplied via the hollow electrode. A backing member is positioned abutting the exit face of the work piece so that at break through the path of the flushing agent is not disrupted. The backing member positioned such that it forms a fluid tight seal with the work piece.
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Bailey Stephen
Pook Stephen T.
Evans Geoffrey S.
Rolls-Royce PLC
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