Opening of capsule inside sealed lamp

Details Opening of capsule inside sealed lamp Opening of capsule inside sealed lamp

1993-04-07

1995-02-28

Yusko, Donald J.

Electric lamp and discharge devices

Having heating means to control gas/vapor, gas or vapor...

313546, 313550, 313558, 313559, 313561, 313490, 313565, 337 27, 337333, 337349, 337378, H01J 6124

Patent

active

053940563

ABSTRACT:
A capsule containing a precise amount of a substance such as mercury is mounted in an electrode mount assembly on a temperature sensitive member. At elevated temperatures the capsule is moved away from lamp components by the temperature sensitive member to preclude inadvertent release of the mercury into the sealed lamp. After the lamp has cooled, the temperature sensitive member urges the capsule into biased engagement with a cutting wire so that upon supply of current thereto the capsule is melted and opened to release the mercury.

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