Self closing toothpaste tube

Claim 1

A self-closing toothpaste tube, comprising a hollow body made of molded resilient plastic material for holding toothpaste or cream, one end of saiD tube being permanently closed, the other end of the tube having an automatic pressure operated valve that maintains said other end normally closed, but which is automatically opened when said body is squeezed for dispensing said toothpaste or cream; said automatic valve comprising a hollow bulb integral with said other end of said body, said bulb consisting of a rounded inner wall in spaced relation inside of a rounded outer wall, the end of said outer wall being open so that a mouth end of said inner wall projects therethrough, said mouth being openable and consisting of upper and lower portions, said inner wall having inward extending corrugations integral therewith, said outer wall having inwardly projecting cantilever members bearing against an outer side of said inner wall so to normally maintain said mouth upper and lower portions in a closed position when said body is not squeezed, and said corrugations normally closing a passage between said hollow body and said mouth when said body is not squeezed but which will flex to open said passage when said body is squeezed.