Method of manufacturing miniature incandescent lamps

Details Method of manufacturing miniature incandescent lamps Method of manufacturing miniature incandescent lamps

1974-08-08

1976-01-13

Lindsay, Jr., Robert L.

Glass manufacturing

Processes

Operating under inert or reducing conditions

65 34, 65 36, 65152, C03B 516, C03B 2320

Patent

active

039321649

ABSTRACT:
In the manufacture of miniature incandescent lamps having a pinched glass cap, an inert cooling gas is blown through the exhaust tube during the pinching operation so as to keep the exhaust tube open.

REFERENCES:
patent: 1398033 (1921-11-01), Maurer
patent: 1448351 (1923-03-01), Kirlin
patent: 2006568 (1935-07-01), Gustin et al.
patent: 2945327 (1960-07-01), Malm et al.
patent: 3409342 (1968-11-01), Anderson et al.
patent: 3505050 (1970-04-01), Huston, Jr.
patent: 3688812 (1972-09-01), Fredericks
patent: 3798491 (1974-03-01), Malm

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