A flexible fluid dispenser includes a flexible fluid-containing vessel which has a seal which seals a top wall of the vessel to a bottom wall and is shaped to concentrate in a region thereof forces resulting from pressure generated by applying a force to the dispenser. The dispenser further includes...http://www.google.com/patents/US5100028?utm_source=gb-gplus-sharePatent US5100028 - Pressure-rupturable container seal having a fluid flow directing shield
