초록 ▼

A dispenser 10 for use in dispensing liquid or solid material. The dispenser 10 includes wall portions forming a sealed first chamber 18 containing the material and wall portions forming a second chamber 20 and a molded, rupturable membrane 34 disposed between the first chamber 18 and the second cha

A dispenser 10 for use in dispensing liquid or solid material. The dispenser 10 includes wall portions forming a sealed first chamber 18 containing the material and wall portions forming a second chamber 20 and a molded, rupturable membrane 34 disposed between the first chamber 18 and the second chamber 20. The rupturable membrane 34 is preferably a circular disk with a series of molded radial depressions 40 or weld seams 40 extending from a center point of the disk. When pressure is applied directly to the membrane 34, the membrane 34 is fractured along the depressions 40 or weld seams 40. A method is provided for forming the dispenser 10 by injection molding.

대표청구항 ▼

1. A dispenser for discharging a liquid or solid material, comprising:a first chamber initially containing the material to be dispensed, having interior and exterior surfaces and further having a distal end; a second chamber having interior and exterior surfaces and further having a proximate end; a

1. A dispenser for discharging a liquid or solid material, comprising:a first chamber initially containing the material to be dispensed, having interior and exterior surfaces and further having a distal end; a second chamber having interior and exterior surfaces and further having a proximate end; a frangible membrane having opposing first and second surfaces wherein the membrane partitions the first and second chamber, the membrane having a thickness, wherein the membrane contains a plurality of mold seams, and wherein the thickness of the membrane is reduced at the mold seams; and an exterior extension fixedly attached to the exterior surfaces of the first and second chambers and coincident with the membrane.