Glass manufacturing – Processes – Forming product or preform from molten glass
65 2, 65326, C03B 3709
A flat plate bushing is described which eliminates extensive precious metal use in drain and/or production bushings. The bushing utilizes a novel arrangement of insulation members and support plates that allow the bushing to be electrically heated and a novel method of connecting the bushing to a power source using the bushing face plate as the connection point is also shown.
patent: 3160492 (1964-12-01), Chapman et al.
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patent: 4351656 (1982-09-01), Jensen
Curley John E.
PPG Industries Inc.
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