Electric heating – Metal heating – Of cylinders
Reexamination Certificate
2004-08-05
2008-08-19
Kerns, Kevin P. (Department: 1793)
Electric heating
Metal heating
Of cylinders
C219S125110
Reexamination Certificate
active
07414220
ABSTRACT:
An orbital weld head includes a metal insert and rotor. The covers are made from mica laminate. A metal spring/brush that is preferably one piece side loads the rotor against the insert. The rotor and insert have interengaging portions, preferably trapezoidal, that cause the rotor to move axially when it expands from heat, thus minimizing binding.
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Ames Nathan
Horvath Tom
Mizer Craig
Oyster Peter
Calfee Halter & Griswold LLP
Kerns Kevin P.
Swagelok Company
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