Bottles and jars – Nursing bottles and nipples
Patent
1990-02-08
1991-07-23
Weaver, Sue A.
Bottles and jars
Nursing bottles and nipples
215 113, 215 116, 222 1, 222105, 222326, A61J 900
Patent
active
050336312
ABSTRACT:
A method and related apparatus for expelling air from a flexible liner baby nursing bottle includes an axially elongated connecting rod which is guided and carried by a support bushing having the general size and shape of the lower open end portion of the shell body of the nursing bottle. The support bushing is located intermediate a disk shaped ram portion at one end of the connecting rod and a supporting handle at the opposite end of the connecting rod. The support bushing is inserted into the open end of the shell body and the ram portion is moved axially along a rectilinear path to decrease the volume of the flexible liner and expel air from within the cavity formed by the nipple and the flexible liner through an orifice in the nipple at the upper open end of the shell body. During interruption of the nursing process, the apparatus and nursing bottle are set in an upright position whereby the ram maintains the volume of the flexible liner to that of the volume of liquid in the baby bottle to prevent air from reentering the liner through the orifice in the nipple.
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