초록 ▼

The invention is an improved nursing bottle, providing a new valve within its bottom structure. A flexible disk is disposed within the bottom end cap of the nursing bottle, clamped at its periphery to the periphery of the base when the bottle is assembled. The disk has a ring of slits near its perip

The invention is an improved nursing bottle, providing a new valve within its bottom structure. A flexible disk is disposed within the bottom end cap of the nursing bottle, clamped at its periphery to the periphery of the base when the bottle is assembled. The disk has a ring of slits near its periphery which are closed when pressure inside the bottle equals ambient pressure. The slits are further sealed by contact with the base. Holes, which are sealed closed by contact with the disk, are provided in the base within a central portion which does not contact the slits in the disk. When pressure within the bottle drops, the disk bows upwardly in its center, opening the valve and allowing air to enter the bottle. When pressure within the bottle increases, the valve again closes.

대표청구항 ▼

1. A nursing bottle comprising:a tubular flexible shell having a lower end and an upper end; a bottom end cap removably engaged with the lower end, the bottom end cap having a plurality of holes therethrough; a top end cap removably engaged with the upper end, said top end cap capable of receiving a

1. A nursing bottle comprising:a tubular flexible shell having a lower end and an upper end; a bottom end cap removably engaged with the lower end, the bottom end cap having a plurality of holes therethrough; a top end cap removably engaged with the upper end, said top end cap capable of receiving a nipple; a bag disposed within the shell, defining an open volume between the shell and the bag, the bag being open to the nipple when the nipple is installed; and a resiliently flexible flat disk having a plurality of slits therethrough, the slits being closed to airflow when pressure inside the bottle is greater than ambient pressure, the slits being open to airflow when pressure inside the bottle is less than ambient pressure, and the disk being disposed within the bottom end cap such that the disk is secured between a base of the bottom end cap and the shell; wherein the slits in the disk are farther from a center of the disk than the holes in the bottom end cap are from a center of the bottom end cap.