Browse Prior Art Database

Gas Panel Tubulation Seal

IP.com Disclosure Number: IPCOM000082123D
Original Publication Date: 1974-Oct-01
Included in the Prior Art Database: 2005-Feb-28
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Frieser, RG: AUTHOR [+2]

Abstract

In the manufacture of gas panels it is necessary to evacuate the panel structure and then charge the same with an inert gas. Conventionally, a tube is provided and connected to a conduit entering into and between the substrates forming the panel, so as to permit ingress and egress of gaseous mixtures. The external connection to the panel is referred to as a tubulation which, as may readily be appreciated, is a source of organic contaminants and particulate contaminates and a source of weakness, which often results in leaks at the interface between the tubulation and the panel structure.

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Gas Panel Tubulation Seal

In the manufacture of gas panels it is necessary to evacuate the panel structure and then charge the same with an inert gas. Conventionally, a tube is provided and connected to a conduit entering into and between the substrates forming the panel, so as to permit ingress and egress of gaseous mixtures. The external connection to the panel is referred to as a tubulation which, as may readily be appreciated, is a source of organic contaminants and particulate contaminates and a source of weakness, which often results in leaks at the interface between the tubulation and the panel structure.

As shown, a substrate 10 includes a recess 11 and an aperture 12 therein which connects to the interior of the panel. In the preferred process, a flared glass tube 13 has its flared end dipped into a glass slurry and prefired at approximately 370 Degrees C to remove organics. Preferably, the slurry 14 is contained only on the flat portion of the flare and kept away from the tube wall. Thereafter, the flared portion of the tube 13 is placed in the recess 11 such that its upper portion is flush with the top of the panel, and then suitable processing may take place to effect a seal between the tube 13, the slurry 14 and the substrate 10.

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