Patent
1978-10-25
1981-08-04
Envall, Jr., Roy N.
C03B 502
Patent
active
042823935
ABSTRACT:
A furnace contains a plurality of zones. Each zone has at least one electrode adjacent a separate electrode of an adjoining zone. The adjacent electrodes are connected to separate power supplies, specifically separate windings of a transformer. In this manner, zones can be arranged immediately adjacent each other while minimizing current paths between non-associated electrodes to substantially zero. It is therefore, unnecessary to otherwise widely space firing zones within a furnace, and the spacing within the furnace may be filled with closer adjacent firing zones.
REFERENCES:
patent: 3836689 (1974-09-01), Holler et al.
patent: 3967046 (1976-06-01), Froberg et al.
patent: 4025713 (1977-05-01), Suesser et al.
Envall Jr. Roy N.
Hudgens Ronald C.
Owens-Corning Fiberglas Corporation
Rosenblatt Joel I.
Schroeder Charles F.
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