Bottles and jars – Nursing bottles and nipples – With vent or valve for air
Patent
1987-09-17
1989-05-09
Weaver, Sue A.
Bottles and jars
Nursing bottles and nipples
With vent or valve for air
215 111, 137903, A61J 904
Patent
active
048281263
ABSTRACT:
The baby bottle according to the invention has identically threaded openings in each end to accept interchangeable screw-on fixtures. One fixture contains a nipple and the second fixture contains a spring-loaded valve. The valve includes a central channel connected to air channels for supplying air to the base of the bottle. The valve is recessed into the bottle to avoid inadvertent opening or breakage when the valve is dropped.
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