Method for manufacturing small tubular lamps

Details Method for manufacturing small tubular lamps Method for manufacturing small tubular lamps

1991-08-13

1992-04-28

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With testing or adjusting

65109, 65160, 445 26, 445 22, H01J 900

Patent

active

051083310

ABSTRACT:
In a method for manufacturing small tubular lamps, a moving amount of a tube stock is adjusted according to a wall thickness thereof to make the stock-guide amount uniform, and the internal pressure during the stock-guide step is also adjusted so as to produce a suitable dimension of the outside diameter thereof, whereby the working amount in the succeeding step is reduced to decrease errors in dimensional tolerances, particularly in wall thickness and internal volume.

REFERENCES:
patent: 3263852 (1966-08-01), Fridrich
patent: 3305289 (1967-02-01), Fridrich
patent: 3576611 (1971-04-01), Obersby
patent: 3679385 (1972-07-01), Senft
patent: 3685880 (1972-08-01), Sobieski
patent: 4389201 (1983-06-01), Hansler et al.
patent: 4675043 (1987-06-01), Conta et al.

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