Self-sealing dispenser insert and method for assembling the same

An insert sized for placement within an opening of a dispenser, said cylindrical insert comprising:

• a substantially solid plug comprising a first surface, a second surface, a first axial hole extending from said first surface to said second surface, and a second axial hole extending from said first surface to said second surface;
• a first reed valve operably attached to said first surface of said plug to close said first axial hole;
• and
• a second reed valve operably attached to said second surface of said plug to close said second axial hole.

A method for dispensing a fluid from a flexible dispenser comprising:

• applying a positive pressure to the dispenser to force the fluid through a first axial hole formed in a plug placed in a opening of the dispenser, the pressure causing a first reed valve mounted on a side of the plug opposite the fluid storage to move away from the first axial hole to allow the fluid to pass through, the positive pressure further causing a second reed valve on a side of the plug where the fluid is contained to maintain placement to substantially seal a second axial hole formed in the plug;
• releasing the positive pressure to allow the first reed valve to return to a position that substantially seals the first axial hole and allows the second reed valve to open thereby allowing air to enter the dispenser through the second axial hole until a difference in pressure between an interior and an exterior of the dispenser is reduced to substantially zero;
• and
• allowing the second reed valve to substantially reseal the second axial hole.