Gas hearth electrical heating supplement and method of operation

Details Gas hearth electrical heating supplement and method of operation Gas hearth electrical heating supplement and method of operation

1979-01-29

1980-04-29

Kellogg, Arthur D.

Glass manufacturing

Processes

Utilizing parting or lubricating layer

65167, 65182A, 65DIG4, C03B 2904

Patent

active

042004462

ABSTRACT:
In a gas hearth furnace having a gas hearth block provided with gas supply passages and exhaust passages for the circulation of hot gas that produces a gaseous support bed for glass sheets during thermal treatment, electric heating wire is supported within certain of said passages in position to heat gas passing therethrough with minimum interference to the movement of said gas through said passages to improve the thermal efficiency of said gas hearth block.

REFERENCES:
patent: 3293015 (1966-12-01), Fredley et al.
patent: 3338697 (1967-08-01), McMaster et al.
patent: 4059426 (1977-11-01), Starr
patent: 4059427 (1977-11-01), Starr et al.

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