Integrated vent and fluid transfer fitment

Details Integrated vent and fluid transfer fitment Integrated vent and fluid transfer fitment

B - Operations, Transporting

67

D

B67D 3/00 (2006.01) A47L 13/20 (2006.01) A47L 13/22 (2006.01) C11D 3/43 (2006.01) C11D 3/50 (2006.01)

Patent

CA 2348444

A vent and fluid transfer fitment (10) for sealing and transferring a fluid from an inverted fluid-filled container (16) without premature leakage to a receiver attachment (22), has a transfer check valve (12) and a venting check valve (13) which are preferably duck-bill valves. The transfer check valve is attached to the fitment for allowing fluid to be transferred from the container when the receiver attachment engages the transfer check valve. The venting check valve is also attached to the fitment for allowing air to displace the fluid as the fluid exits the container, wherein both the transfer check valve and the venting check valve have an inherent sealing pressure created by the static pressure of the fluid within the container. In addition, the inherent sealing pressure of the venting check valve is less than the inherent sealing pressure of the transfer check valve which allows air to enter the container due to the pressure differential created as the fluid is displaced.

L'invention concerne un embout (10) de ventilation et de transfert de fluide permettant de fermer un récipient (16) en position renversée et de transférer un fluide contenu dans ce dernier sans fuites prématurées vers un élément (22) récepteur. Cet embout comprend un clapet (12) de transfert et un clapet (13) de ventilation qui sont de préférence des clapets en bec de canard. Le clapet de transfert est monté sur l'embout et permet le transfert du fluide contenu dans le récipient lorsque l'élément récepteur pousse le clapet de transfert. Le clapet de ventilation est également monté sur l'embout et permet à l'air de déplacer le fluide à mesure que ce dernier sort du récipient. Le clapet de transfert et le clapet de ventilation ont tous deux une pression de fermeture inhérente résultant la pression statique du fluide contenu dans le récipient. De plus, la pression de fermeture inhérente du clapet de ventilation est inférieure à la pression inhérente du clapet de transfert ce qui permet à l'air de pénétrer dans le récipient grâce à la différence de pression résultant du déplacement du fluide.

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