초록 ▼

A dispensing system is provided and can be embodied in a dispensing closure for a container having an opening. The system includes a unitary, resiliently flexible, molded valve array structure for being sealingly disposed on the container over the container opening. The valve array structure include

A dispensing system is provided and can be embodied in a dispensing closure for a container having an opening. The system includes a unitary, resiliently flexible, molded valve array structure for being sealingly disposed on the container over the container opening. The valve array structure includes an impervious membrane. The valve array structure also includes a plurality of resiliently flexible, slit valves molded unitary with the membrane. Each valve has a normally closed dispensing orifice which opens when the pressure in the interior of the container exceeds the pressure on the exterior of the valve by a predetermined amount. The valves can be arranged to discharge parallel streams, diverging streams, or converging streams.

대표청구항 ▼

[ What is claimed is:] [1.] 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)

[ What is claimed is:] [1.] 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.