Patent ID: 7938281

Claim:
A leakproof bottle for infant food, said bottle comprising: a bottle with a first external thread around a bottle opening, a lower closure ring, having a substantially cylindrical first covering portion with a first internal thread which is screwed onto the first external thread, and which features a first central portion connected to the upper edge of the first covering portion, having a substantially flat first fitting surface, rotationally symmetric around a longitudinal axis and facing away from the bottle interior, and at least one first throughflow hole, running into the first fitting surface at the one side and into a side of the first central part facing towards the bottle interior at the other side; an upper closure ring, which has a substantially cylindrical second covering portion with a second external thread and which features a second central portion, connected with the second covering portion, and having a substantially flat second fitting surface, rotationally symmetric around a longitudinal axis and sitting sealingly on the first fitting surface, and at least one second throughflow hole , running into the second fitting surface at the one side and into a side of the second central portion facing away from the same at the other side, which can be brought into coincident and non-coincident positions in relation to the first throughflow hole by rotating the upper closure ring in relation to the lower closure ring; locking elements which lock the lower closure ring and the upper closure ring with each other, rotatably and releasably with respect to each other; a drinking teat; and a screw ring with a second internal thread, which is screwed onto the second external thread of the upper closure ring and which releasably secures a lower edge region of the drinking teat on the upper closure ring.