Coaxial seal and tip off burners

Details Coaxial seal and tip off burners Coaxial seal and tip off burners

1977-12-29

1980-01-22

Lazarus, Richard B.

316 30, H01J 934, H01J 938

Patent

active

041847288

ABSTRACT:
A head for a rotary turret machine for making incandescent lamps or fluorescent light tubes is capable of, sequentially, sealing a mount to the lamp envelope, exhausting the interior of the envelope, filling it with a fill gas and tipping-off the exhaust tube of the mount. The head accordingly includes a sealing burner, a tip-off burner disposed coaxially within the sealing burner and around the exhaust tube with the lead-in wires disposed between the sealing and tip-off burners, a coupling connectable to a vacuum pump or to a source of fill gas, and respective fuel pipes for the sealing and tip-off burners.

REFERENCES:
patent: 2225090 (1940-12-01), Wiener
patent: 2531008 (1950-11-01), Stuart

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