Metallurgical apparatus – With recording – indicating – inspection or measuring means
Reexamination Certificate
2010-02-17
2011-12-06
King, Roy (Department: 1733)
Metallurgical apparatus
With recording, indicating, inspection or measuring means
C266S220000, C266S217000, C374S139000
Reexamination Certificate
active
08071012
ABSTRACT:
A temperature measuring device for molten metal includes a porous plug with a first end and an opposed second end, an outer protective sheath with a closed end, an inner protective tube with a closed end, and a thermocouple arranged within an interior of the inner protective tube. The outer protective sheath extends away from the first end of the plug and the inner protective tube is arranged within an interior of the outer protective sheath. The porous plug comprises a substantially refractory material and the outer protective sheath consists essentially of substantially refractory metal oxide and graphite. A junction of the thermocouple is proximate to the closed end of the inner protective tube.
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Office Action issued Aug. 31, 2011 in U.S. Appl. No. 12/984,065.
Int'l Preliminary Report on Patentability issued Sep. 1, 2011 in Int'l Application No. PCT/EP2010/000987.
Aboagye Michael
Heraeus Electro-Nite International N.V.
King Roy
Panitch Schwarze Belisario & Nadel LLP
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