Lamp pressure checking device

Details Lamp pressure checking device Lamp pressure checking device

1980-12-15

1982-07-06

Woodiel, Donald O.

Measuring and testing

Testing sealed receptacle

73 493, G01M 302

Patent

active

043376452

ABSTRACT:
The invention relates to a method and apparatus for checking the internal pressure of a filled lamp bulb. According to the invention, a filled bulb to be checked is inserted into a gas tight chamber; the chamber is then sealed and pressurized. The lamp envelope is broken by means in the chamber. Chamber pressure is measured before and after breaking the envelope.

REFERENCES:
patent: 983962 (1911-02-01), Werner
patent: 1211942 (1917-01-01), Hoff
patent: 2393996 (1946-02-01), Layton
patent: 3407123 (1968-10-01), Peterson
patent: 3888111 (1975-06-01), Craig

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