An improved seal

Details An improved seal An improved seal

F - Mech Eng,Light,Heat,Weapons

16

J

F16J 15/10 (2006.01) F16L 31/00 (2006.01) F16L 37/244 (2006.01) F16L 37/252 (2006.01)

Patent

CA 2427972

A bellows type seal for a quick connect coupling. The bellows seal has a torroidal portion (20) with a substantially planar sealing surface at one end of the torroidal portion (20) and a bellows portion (14) at the other end of the torroidal portion (20). The bellows portion (14) extends away from the torroidal portion (20) and is semicircular in cross-section and terminates in a circumferential bead (24) extending radially outward from the bellows portion (14). The bellows portion (14) may also include a circumferential sealing bead (26) at an apex of the bellows portion (14). The torroidal portion (20) may have a metal reinforcement ring (22). The termination bead (24) of the bellows portion (14) has a part circular cross-section with a diameter greater than that of the thickness of the bellows portion (14).

L'invention concerne un joint d'étanchéité du type à soufflet pour raccord rapide. Ce joint possède une portion toroïdale (20) présentant une surface d'étanchéité sensiblement plane à une extrémité de ladite portion (20) et une portion de soufflet (14) au niveau de l'autre extrémité de la portion toroïdale (20). La portion de soufflet (14) s'éloigne de la portion toroïdale (20) et est semi-circulaire en coupe transversale et se termine en bourrelet annulaire (24) s'étendant radialement vers l'extérieur à partir de la portion de soufflet (14). Cette portion (14) peut aussi comprendre un bourrelet d'étanchéité annulaire (26) au niveau de l'apex de la portion de soufflet (14). La portion toroïdale (20) peut comporter un anneau de renforcement métallique (22). Le bourrelet d'extrémité (24) de la portion de soufflet (14) possède une section transversale à partie circulaire avec un diamètre supérieur à celui de l'épaisseur de la portion de soufflet (14).

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