Patent ID: 6176399
Filing Date: 2001-01-23
Classification: B65D

Abstract:
A dispensing system for dispensing a product from a container having an opening, said system comprising:a unitary, resiliently flexible, molded valve array structure for being sealingly disposed on said container over said opening, said valve array structure including (1) an impervious membrane having a generally planar region; and (2) a plurality of resiliently flexible, slit valves molded unitary with said membrane, each said valve having a normally closed dispensing orifice which opens when the pressure in the interior of said container exceeds the pressure on the exterior of the valve by a predetermined amount, each said valve includes (1) a valve head portion central wall defining a concave configuration as viewed from the exterior, and (2) a flexible skirt extending from said valve head portion central wall toward said generally planar region of said membrane.