초록 ▼

Device of the feeding-bottle type comprising: an external tubular body (1) having an open extremity (1b); a flexible capsule or container (3) housed or capable of being housed within said tubular body and presenting also an extremity (C) which is open or arranged to be opened; means(2, 42) allowing

Device of the feeding-bottle type comprising: an external tubular body (1) having an open extremity (1b); a flexible capsule or container (3) housed or capable of being housed within said tubular body and presenting also an extremity (C) which is open or arranged to be opened; means(2, 42) allowing to communicate with environmental air, the space (D) existing between said flexible capsule (3) and the body (1); a specific teat (12) mounted or conformed to be mounted ahead of the openings (A, C) of said body (1) and said capsule (3); and an intermediary non-return valve (5) arranged between the open extremity (C) of said capsule (3) and the base of said teat (12) and delimiting with the latter a dispensing chamber (F); characterized in that a second valve (19, 20) is provided in the nipple piece (15) of the teat (12), between the dispensing chamber (F) and the outlet perforations (18) of said teat, said second valve (19-20) allowing the passage of nutrient liquid towards said outlet perforations (18) and opposing the entry of air into said dispensing chamber (F).

대표청구항 ▼

[ We claim:] [1.] A device of the feeding-bottle type, comprising:an outer tubular body having a closed end and an open end, and a body opening disposed at the open end;a flexible bag having a closed end and a bag opening, the flexible bag disposable in the outer tubular body and, when placed in the

[ We claim:] [1.] A device of the feeding-bottle type, comprising:an outer tubular body having a closed end and an open end, and a body opening disposed at the open end;a flexible bag having a closed end and a bag opening, the flexible bag disposable in the outer tubular body and, when placed in the outer tubular body, forming a space between the outer tubular body and the flexible bag;means, on the outer tubular body, for admitting ambient air into the space between the outer tubular body and the flexible bag as the contents of the flexible bag are discharged;a teat including a base disposed at a first end, a nipple with outlet perforations disposed at an opposite end, and an outer deformable casing extending between the nipple and the base, the teat being disposed in front of the outer tubular body and in front of the bag opening;an intermediate non-return check valve, disposed between the bag opening and the base of the teat defining a dispensing chamber together with the outer deformable casing of the teat, for allowing one way flow of liquid from the bag into the dispensing chamber;a core disposed within the dispensing chamber and having a base disposed adjacent to the intermediate check valve and a conical shape extending to a second end;at least one aperture formed in the core and establishing a fluid flow path between the flexible bag and the dispensing chamber through the intermediate check valve; anda second check valve integral with the second end of the core, the second check valve disposed in the nipple between the dispensing chamber and the outlet perforations of the nipple, wherein the second check valve allows a passage of liquid toward the outlet perforations, and opposes an entrance of air into the dispensing chamber;the second check valve being seated in a narrowing of the nipple, the narrowing forming a seat for the second check valve; andelastic means, carried by the core, for allowing movement of the second check valve in a direction between the base and the nipple and tending to seat the second check valve on the narrowing of the nipple.