Redundant seal for tank filler neck closure

Details Redundant seal for tank filler neck closure Redundant seal for tank filler neck closure

B - Operations, Transporting

65

B

B65B 1/04 (2006.01) B60K 15/04 (2006.01) B65B 31/00 (2006.01)

Patent

CA 2372422

A redundant seal for a vehicle fuel tank filler neck closure is provided for closing and opening an automobile fuel tank to the atmosphere. The redundant seal (48) includes a lower shoulder (51) which sealably engages a first valve seat and an upper shoulder (53) which sealably engages a second valve seat. The redundant seal (48) is appropriate for use in applications such as filler neck closures, pressure and vacuum-relief systems within tank filler neck closures, and capless filler neck closure systems.

L'invention porte sur un joint double pour bouchons de goulot de remplissage de réservoirs de véhicule automobile, les isolant de l'atmosphère. Ledit joint (48) comporte un épaulement inférieur (51) reposant hermétiquement sur un premier siège de soupape, et un épaulement supérieur (53) reposant hermétiquement sur un deuxième siège de soupape. Ce double joint (48) se destine à des applications telles que les bouchons de goulots de remplissage, les dispositifs de mise à l'air libre de bouchons de réservoirs sous vide ou sous pression, ou les système de fermeture de goulots de remplissage sans capuchon.

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