Anti-burp nursing bottle combination

Claim 2

An anti-burp nursing bottle combination comprising an open ended bottle shell adapted to retain a disposable collapsible liquid container held in place by a ring encircling the top of said shell, said ring retaining a nipple in place on top of said shell in sealing relationship with said liquid container, said open ended bottle shell being adapted to accept a plunger in the open lower end of said bottle shell in mating relationship therewith, said plunger having a base adapted to retain said combination in an upright position, a crown adapted to fit snugly inside said open lower end of said bottle shell about two inches in diameter and from about one half inch to about one and one half inches thick comprised entirely of a foamed plastic composition, and a trunk located between and connecting said crown and said base having a diameter only slightly less than the diameter of said crown to provide support therefor, said plunger adapted to be moved upwardly inside said open ended bottle shell against the lower portion of said liquid container to force air trapped within said collapsible disposable liquid container out through the nipple on top of said open ended disposable bottle shell to remove substantially all entrapped air inside said collapsible disposable liquid container prior to use by an infant.

Claim 3

The anti-burp nursing bottle combination of claim 1 wherein said foamed plastic is foamed polystyrene.

Claim 4

A plunger adapted for use in an anti-burp nursing bottle combination having an open ended bottle shell adapted to retain a disposable collapsible liquid container held in place by a ring encircling the top of said shell, said ring also retaining a nipple in place on top of said shell in sealing relationship with said liquid container, said plunger being adatped for insertion in the open lower end of said bottle shell in mating relationship therewith and further being adapted to move upward inside said open ended bottle shell against the lower portion of said liquid container to force air trapped within said collapsible disposable liquid container out through the nipple on the upper portion of said open ended bottle shell to remove substantially all entrapped air inside said collapsible disposable liquid container prior to use by an infant, said plunger comprised of a base, a trunk, and a crown, wherein said crown is in the form of a cylinder adapted to fit snugly inside said open end of said bottle shell about two inches in diameter and about one half to about one and one half inches in height comprised entirely of a foamed plastic composition, said trunk connecting said crown and said base having a diameter only slightly less than the diameter of said crown to provide support therefor, and said base being adapted to maintain said combination in an upright position.

Claim 5

A plunger adapted for use in an anti-burp nursing bottle combination having an open ended bottle shell adapted to retain a disposable collapsible liquid container held in place by a ring encircling the top of said shell, said ring also retaining a nipple in place on top of said shell in sealing relationship with said liquid container, said plunger being adatped for insertion in the open lower end of said bottle shell in mating relationship therewith and further being adapted to move upward inside said open ended bottle shell against the lower portion of said liquid container to force air trapped within said collapsible disposable liquid container out through the nipple on the upper portion of said open ended bottle shell to remove substantially all entrapped air inside said collapsible disposable liquid container prior to use by an infant, said plunger comprised of a base, a trunk, and a crown, wherein said crown is in the form of a cylinder adapted to fit snugly inside said open end of said bottle shell about two inches in diameter and about one half to about one and one half inches in height comprised entirely of a foamed plastic composition, said trunk connecting said crown and said base having a diameter only slightly less than the diameter of said crown to provide support therefor, and said base being adapted to maintain said combination in an upright position.

Claim 6

The plunger of claim 2 wherein said foamed plastic is foamed polystyrene.