Bottles and jars – Nursing bottles and nipples – With vent or valve for air
Patent
1994-03-15
1996-03-19
Shoap, Allan N.
Bottles and jars
Nursing bottles and nipples
With vent or valve for air
137845, 215261, 215271, A61J 904
Patent
active
054997291
ABSTRACT:
An infant feeding bottle that is nipple-equipped at one end that is further equipped with a pressure equalizing apertured diaphragm member at the opposite end. The diaphragm member allows room air to pass therethrough into the air space in the bottle when the bottle is inclined and liquid is withdrawn through the nipple, thereby equalizing the interior air pressure. The diaphragm member is gas and liquid tight when the inside and outside pressures are equal and the bottle is in an upright configuration with the feeding liquid resting on the diaphragm member. The diaphragm member has a central portion which is dome configured and provided with apertures that are in a sealed shut configuration when the diaphragm member is relaxed yet that are opened when the diaphragm member is expanded responsive to differential air pressure.
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Greenwood Mark H.
Keith Marvin
Children On the Go, Inc.
McDonald Christopher J.
Shoap Allan N.
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