Method of sealing a glass/tubulation to a plate

Details Method of sealing a glass/tubulation to a plate Method of sealing a glass/tubulation to a plate

1975-11-26

1977-06-28

Kellogg, Arthur D.

Glass manufacturing

Processes

Fusion bonding of glass to a formed part

65 54, 65104, 65108, 65120, C03B 2900, C03C 2700

Patent

active

040323161

ABSTRACT:
The disclosure is of a method of preparing an envelope assembly including a glass tubulation in which the tubulation includes a portion of reduced diameter at which a tip-off is formed during the manufacturing process. The method comprises heating the tubulation to an elevated temperature at which surface defects heal, and subsequently securing the tubulation to the envelope in normal fashion while insuring that no further surface defects occur.

REFERENCES:
patent: 2371486 (1945-03-01), Walker
patent: 2822646 (1958-02-01), Krefft
patent: 3708273 (1973-01-01), Mitchell
patent: 3914000 (1975-10-01), Beckerman et al.

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