Procedure for manufacturing gas-filled discharge devices

Details Procedure for manufacturing gas-filled discharge devices Procedure for manufacturing gas-filled discharge devices

1980-12-08

1983-05-17

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Including evacuating, degasifying or getter or fluent...

445 73, H01T 2100

Patent

active

043837239

ABSTRACT:
Gas-filled discharge tube for use as transient protection, with at least two electrodes separated by a discharge gap and an insulating body which is joined to the electrodes and, jointly with them, forms a discharge chamber. The sealing of the tube occurs at atmospheric pressure and a suitable temperature, in a mixture of a light and a heavy gas suitable for the purpose, after which the tube is enveloped in a suitable heavy gas at atmospheric pressure, while the temperature is adjusted in such a manner that the light gas enclosed in the tube, through diffusion and a partial pressure difference, exits through the insulating body, whereas the heavy gases can only to an insignificant degree diffuse through the insulating body. The gas diffusion brings about a reduction in the total gas pressure inside the tube and the process is interrupted when the desired pressure drop is obtained.

REFERENCES:
patent: 3701578 (1978-10-01), Krey
patent: 3882596 (1975-05-01), Kendziora et al.
patent: 4082392 (1978-04-01), Golin
patent: 4294395 (1981-10-01), Nayar

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