Glass manufacturing apparatus, a structural member thereof...

Details Glass manufacturing apparatus, a structural member thereof... Glass manufacturing apparatus, a structural member thereof...

2011-05-10

2011-05-10

Daniels, Matthew J (Department: 1741)

Electric resistance heating devices

Heating devices

Fluid-in-circuit type heater

C065S355000, C373S036000, C392S314000, C392S323000, C392S465000, C392S480000, C392S482000

Reexamination Certificate

active

07941038

ABSTRACT:
A hollow tubular body for molten glass in which local-overheating is reduced at the time of conduction heating. The hollow tubular body has a platinum or platinum alloy hollow tube, used for conduction heating, wherein a platinum or platinum alloy ring electrode is joined to the outer circumference of the hollow tube, a lead-out electrode is joined to an outer edge of the ring electrode, and a thick portion is provided in at least the joint portion closest to the lead-out electrode, of the ring electrode and in the vicinity thereof.

REFERENCES:
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patent: 4967755 (1990-11-01), Pohndorf
patent: 5851258 (1998-12-01), Ando et al.
patent: 6286337 (2001-09-01), Palmquist
patent: 6405067 (2002-06-01), Mest et al.
patent: 2008/0050609 (2008-02-01), Abe et al.
patent: 06-227822 (1994-08-01), None
patent: 10-152329 (1998-06-01), None
patent: 11-349334 (1999-12-01), None

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