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Expandable Gasket for Providing Fluid-Impervious Seal Between Spaced Members

IP.com Disclosure Number: IPCOM000041083D
Original Publication Date: 1987-Jul-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Miles, AW: AUTHOR [+2]

Abstract

This article describes an expandable gasket which can be used to provide a fluid-impervious seal between two parallel members. The member may be the faceplate of a cathode ray tube and an overlying glass or plastic panel. Referring to the drawing, member 10 represents a partial cross section of a CRT faceplate while member 12 represents a partial cross section of an overlying glass panel which may be used as part of a touch-sensitive assembly. The gasket comprises a tubular member 14, preferably made from thin, extremely flexible plastic material. As shown in the drawing, the two can be fabricated from upper and lower pieces 16 and 18, respectively, each sealed together at flanges 20 and 22.

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Expandable Gasket for Providing Fluid-Impervious Seal Between Spaced Members

This article describes an expandable gasket which can be used to provide a fluid-impervious seal between two parallel members. The member may be the faceplate of a cathode ray tube and an overlying glass or plastic panel. Referring to the drawing, member 10 represents a partial cross section of a CRT faceplate while member 12 represents a partial cross section of an overlying glass panel which may be used as part of a touch-sensitive assembly. The gasket comprises a tubular member 14, preferably made from thin, extremely flexible plastic material. As shown in the drawing, the two can be fabricated from upper and lower pieces 16 and 18, respectively, each sealed together at flanges 20 and 22. Thin adhesive layers 24 and 26 on the upper and lower surfaces of the tubular member 14 contact the inner surfaces of the plates 10 and 12.

If the tubular member 14 were being used to provide a fluid-impervious seal between a CRT faceplate and an overlying glass plate, the tubular member would be a continuous closed member having the same general shape as the perimeter of the overlying glass plate 12 but being slightly smaller.

There are two ways in which adhering contact between the tubular member 14 and the plates 10 and 12 can be established. One is to use a tubular member 14 which is fully pressurized at the beginning of an assembly operation. The other is to inflate or pressurize tubular member...