Antiextrusion device

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

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F16J 15/00 (2006.01) F16J 15/12 (2006.01) F16J 15/16 (2006.01)

Patent

CA 2404469

An elastomeric seal having an antiextrusion device molded integrally into or onto the low pressure side of the seal. The antiextrusion device of a corrugated strip into an elastomeric seal. One embodiment of the invention has the strip positioned with the midplane of its corrugations normal to the mating seal surfaces and parallel to the midplane of the seal groove. Another embodiment of the invention has the midplane of the corrugations canted within the seal. The antiextrusion device is applicable to annular seal rings, linear seals, or seals of more complex configuration.

L'invention concerne un joint élastomérique (32) doté d'un dispositif antiextrusion (10) intégralement moulé dans ou sur le côté à faible pression du joint. L'antiextrusion d'une bande plissée (10) dans un joint élastomérique (32). Selon l'un des modes de réalisation de la présente invention, la bande est positionnée avec le demi-plan de ses plis perpendiculaire aux surfaces de scellement associées et parallèle au demi-plan de l'espace de scellement. Selon un autre des modes de réalisation de la présente invention, le demi-plan des plis obliquement à l'intérieur du joint. Le dispositif antiextrusion peut s'appliquer à des anneaux de scellement annulaires, ou des joints dont la configuration est plus complexe (36).

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