Stem sealing apparatus having external tipping off burners

Details Stem sealing apparatus having external tipping off burners Stem sealing apparatus having external tipping off burners

1982-03-25

1984-05-08

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Apparatus

Assembly means

65138, 65270, H01J 934, H01J 940

Patent

active

044472161

ABSTRACT:
An apparatus for manufacturing bulbs comprises a mount holder having a hole through which an exhaust tube is passed loosely and holding a mount, a sealing burner arranged around the holder for fusing the contact portions of a stem and the opening edge of a bulb body, a butting plate arranged around the holder so as to be able to reciprocate along the axis of the holder, and capable of pressing on the fused contact portions, and two tipping-off burners for sealing off the exhaust tube. The holder includes two flame inlet ports opening in the outer surface of the holer and communicating with the hole. The burners are located outside the holder, and can move between a position where it can inject flames into the ports and a position where it does not prevent the movement of the abutting plate.

REFERENCES:
patent: 3068909 (1962-12-01), Wilson et al.
patent: 4184728 (1980-01-01), Grenfell et al.
patent: 4382645 (1983-05-01), Hayakawa et al.

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