초록 ▼

A vent and fluid transfer fitment for sealing and transferring a fluid from an inverted fluid-filled container without premature leakage to a receiver attachment, has a transfer check valve and a venting check valve which are preferably duckbill valves. The transfer check valve is attached to the fi

A vent and fluid transfer fitment for sealing and transferring a fluid from an inverted fluid-filled container without premature leakage to a receiver attachment, has a transfer check valve and a venting check valve which are preferably duckbill 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.

대표청구항 ▼

[What is claimed is:] [1.]a fluid-filled container having an opening;a fitment attached to said opening and having a fluid transfer check valve and an air vent disposed in the fitment for allowing air to displace the fluid as the fluid exits the container, wherein a substantially planar portion of s

[What is claimed is:] [1.]a fluid-filled container having an opening;a fitment attached to said opening and having a fluid transfer check valve and an air vent disposed in the fitment for allowing air to displace the fluid as the fluid exits the container, wherein a substantially planar portion of said transfer check valve overlies said air vent to sealingly cover said air vent; anda receiver attachment having a probe for engaging said fluid transfer check valve to allow transfer of the fluid from said fluid-filled container when said fluid-filled container is inverted.