Process and apparatus for forming lamp capsules

Details Process and apparatus for forming lamp capsules Process and apparatus for forming lamp capsules

1981-12-28

1984-02-28

LaRoche, Eugene R.

Electric lamp and discharge devices

Electrode and shield structures

With lead wire or connector

445 22, 445 67, 445 27, 65 79, 65229, 65267, 65305, 313318, H01J 900, C03B 900, C03B 1100

Patent

active

044343868

ABSTRACT:
A process for forming lamp capsules such as in the manufacture of miniature arc lamps wherein the bulb portion of the capsule is formed by blowing molten glass into a mold while simultaneously press sealing the lead assembly. The molding and sealing process is accomplished with heat application by means of a press foot assembly closed for a predetermined period of time such as one second to press seal the blank capsule against the lead assembly with one portion of the press foot assembly, and simultaneously to blow mold the blank capsule into another preformed portion of the press foot assembly to form the bulb portion of the lamp capsule.

REFERENCES:
patent: 2491237 (1949-12-01), Way
patent: 3617797 (1971-11-01), Emmasingel et al.
patent: 4273568 (1981-06-01), Scholl et al.
patent: 4307318 (1981-12-01), Nixon

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