Evacuation apparatus

Details Evacuation apparatus Evacuation apparatus

1994-12-21

1996-03-19

Bradley, P. Austin

Electric lamp or space discharge component or device manufacturi

Apparatus

Having evacuation or degasification means or means to...

445 70, 141 65, H01J 9385

Patent

active

054999391

ABSTRACT:
An evacuation apparatus is capable of evacuating an envelope to a high vacuum without evacuating a whole room or chamber to a high vacuum. An evacuation pipe is connected at a distal end thereof to an evacuation head and a vacuum pump is actuated to evacuate an evacuation chamber to a high vacuum, to thereby evacuate an envelope to a high vacuum. Then, a motor is driven to rotate ball screws, to thereby upwardly move the envelope mounted on the evacuation head. The evacuation pipe is fused at an intermediate portion thereof by a gas burner, to thereby be sealed. Then, the evacuation pipe is cut to disconnect the envelope from the evacuation head.

REFERENCES:
patent: 2730280 (1956-01-01), Spencer

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