초록 ▼

An insert for a nursing bottle is disclosed. It is placed between the bottle and the nipple. The insert has a channel that communicates with the air passage holes in the nipple. The channel itself has air passage holes that are sized to allow air into the bottle but prevent the liquid in the bottle

An insert for a nursing bottle is disclosed. It is placed between the bottle and the nipple. The insert has a channel that communicates with the air passage holes in the nipple. The channel itself has air passage holes that are sized to allow air into the bottle but prevent the liquid in the bottle from exiting. This arrangement prevents the creation of a vacumn in the bottle when the liquid exits through the nipple.

대표청구항 ▼

In means for feeding a suckling comprising a container for a liquid to be fed to a suckling, a nipple coupled to said container, said nipple to be suckled, and coupling means for coupling said nipple to said container; said nipple having a central opening adjacent said container through which liquid

In means for feeding a suckling comprising a container for a liquid to be fed to a suckling, a nipple coupled to said container, said nipple to be suckled, and coupling means for coupling said nipple to said container; said nipple having a central opening adjacent said container through which liquid enters said nipple from said container, an opening through which liquid is drawn from said container by said suckling, and an air vent opening for allowing the passage free of vent values and of air into said container; said air vent opening being small enough to prevent liquid leaking therethrough as said nipple is manipulated by a suckling feeding at the nipple, and, further said air vent opening being generally ineffective in venting said container while a suckling is feeding; the improvement comprising: an insert cooperating with said coupling means to be coupled to said container with said nipple, said insert having: a liquid entry opening adjacent said central opening of said nipple; a first surface coupled to said nipple adjacent said central opening of said nipple and permitting unimpeded passage of air through said air vent opening in said nipple; a second surface coupled to said nipple where said nipple is coupled to said container, said second surface permitting free passage of air through said air vent opening in said nipple; a region between said first surface and said second surface of said insert, said region defining an air reservoir means coupled to said nipple and said container, said reservoir receiving air at ambient pressure from said air vent opening; and an air passage coupling air from said air reservoir to said container as liquid within said container is withdrawn by a suckling feeding at said nipple, said air passage having a cross sectional area small enough to inhibit entry of liquid from said container into said air reservoir and large enough to permit free passage of air from said air reservoir, through said liquid, into said container as said liquid is being withdrawn from said container by a suckling.