Industrial electric heating furnaces – Arc furnace device – Electrode
Reexamination Certificate
2006-07-20
2010-11-16
Hoang, Tu B (Department: 3742)
Industrial electric heating furnaces
Arc furnace device
Electrode
C373S089000, C373S092000
Reexamination Certificate
active
07835419
ABSTRACT:
A pin for use in connecting graphite electrodes into a joint, where the pin has at least one male tang having a tang factor, defined as the ratio of male tang length to diameter of the electrode into which hit is to be threaded, of at least about 0.60.
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Batty Lionel D. Burton
Coleman Philip D.
Smith Robert E.
Cartiglia James R.
GrafTech International Holdings Inc.
Hoang Tu B
Nguyen Hung
Waddey & Patterson , P.C.
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