Tubular sealing article

F - Mech Eng,Light,Heat,Weapons – 16 – J

Patent

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F16J 15/10 (2006.01) F16J 15/02 (2006.01) F16J 15/06 (2006.01)

Patent

CA 2253843

An article for use as an environmental sealing gasket comprising an elongate body of gel sealant (30, Fig. 3), a solid, porous, or tubular elongate carrier (31), and an elongate tubular casing (32), wherein the casing has interstices and either (a) the casing (32) encloses the gel (30) on the carrier (31) and the gel is selected to be capable of protrusion through the casing interstices when the article is under compression and of retraction from such protrusion when the compression is removed; or (b) the casing is on the carrier and the body of gel at least partly encloses the casing on the carrier and is selected to be capable of deformation to expose enclosed portions of the casing when the article is under compression and of recovering to re-enclose the exposed portions when the compression is removed.

Cet article, utile en tant que joint statique étanche au milieu ambiant, comprend un gel de scellement sous la forme d'un corps oblong (30, figure 3), un support de forme allongée, solide, poreux ou tubulaire (31) ainsi qu'une gaine tubulaire et de forme allongée (32). Cet article est caractérisé en ce que la gaine présente des interstices et soit (a) la gaine (32) enferme le gel (30) sur le support (31), le gel étant choisi pour saillir à travers les interstices de la gaine, lorsque l'on soumet l'article à une compression, et pour se rétracter d'une telle position saillante, lorsque cesse la compression, soit (b) la gaine est placée sur le support et le corps du gel enferme au moins partiellement la gaine sur le support, ce gel étant choisi pour se déformer et exposer des portions enfermées de la gaine, lorsque l'on soumet l'article à une compression, et pour reprendre sa forme initiale et enfermer à nouveau les portions exposées, lorsque cesse la compression.

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