Apparatus for uniformly heating molten glass

Details Apparatus for uniformly heating molten glass Apparatus for uniformly heating molten glass

1976-06-14

1977-09-20

Envall, Jr., R. N.

C03B 502

Patent

active

040498999

ABSTRACT:
Molten glass is uniformly heated between a plurality of pairs of electrodes which receive electric current from a current source which includes a like plurality of transformers and a source of electric power, the primary windings of the transformers being connected in series to the power source and each secondary transformer winding being connected to an associated pair of electrodes. The transformers feed and control the electric current to equalize the current regardless of electrical resistance variations in the material due to rising temperatures.

REFERENCES:
patent: 3182112 (1965-05-01), Torok
patent: 3395237 (1968-07-01), Orton
patent: 3836689 (1974-09-01), Holler et al.
patent: 3984612 (1976-10-01), Susser et al.
patent: 3985944 (1976-10-01), Maddux

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