A bottle assembly includes a container and a vent assembly positionable at least in part of a rim of the container. A collar assembly generally defines a closure for the container and is releasably engaged with a neck of the container. The collar assembly and the vent assembly are configured relative to one another to permit selective configuration between a first configuration and a second configuration. In the first configuration, the collar assembly urges the vent assembly onto the rim of the container such that at least a majority of a cross-section of a lateral vent of the vent assembly is disposed below the rim. In the second configuration, in which the vent assembly is omitted from the bottle assembly, the collar assembly substantially sealingly engages the rim of the container.

A bottle assembly includes a container and a vent assembly positionable at least in part of a rim of the container. A collar assembly generally defines a closure for the container and is releasably engaged with a neck of the container. The collar assembly and the vent assembly are configured relative to one another to permit selective configuration between a first configuration and a second configuration. In the first configuration, the collar assembly urges the vent assembly onto the rim of the container such that at least a majority of a cross-section of a lateral vent of the vent assembly is disposed below the rim. In the second configuration, in which the vent assembly is omitted from the bottle assembly, the collar assembly substantially sealingly engages the rim of the container.

An insert that has a one-way valve that allows for one-way flow of liquid in response to reduced pressure. The insert is configured to be installed in a baby bottle to form two chambersa reservoir chamber and a dispensing chamber. The insert also is provided with a valve failure mechanism which allows a user to force the one-way valve open in the absence of reduced pressure, which allows a user to prime the dispensing chamber (the nipple) prior to beginning feeding.

An insert that has a one-way valve that allows for one-way flow of liquid in response to reduced pressure. The insert is configured to be installed in a baby bottle to form two chambersa reservoir chamber and a dispensing chamber. The insert also is provided with a valve failure mechanism which allows a user to force the one-way valve open in the absence of reduced pressure, which allows a user to prime the dispensing chamber (the nipple) prior to beginning feeding.

A double-layer glass feeding bottle includes a bottle body, a first cap, a second cap, and a nipple. The first cap is threaded to an upper portion of a side wall of the bottle body. The nipple is fixedly connected to an inner side wall of the first cap. The second cap is provided at a top of the first cap. The bottle body includes an inner liner and an outer shell. The inner liner is provided inside the outer shell. A bottom of the outer shell is integrally formed with a bottom of the bottle body. A through hole is provided at the bottom of the outer shell. A one-way valve is provided inside the through hole.

A double-layer glass feeding bottle includes a bottle body, a first cap, a second cap, and a nipple. The first cap is threaded to an upper portion of a side wall of the bottle body. The nipple is fixedly connected to an inner side wall of the first cap. The second cap is provided at a top of the first cap. The bottle body includes an inner liner and an outer shell. The inner liner is provided inside the outer shell. A bottom of the outer shell is integrally formed with a bottom of the bottle body. A through hole is provided at the bottom of the outer shell. A one-way valve is provided inside the through hole.

A breather valve is described configured for use on containers that selectively allows a flow of air through the breather valve and which may be used to regulate the flow rate of fluid from a container or nursing bottle comprising the breather valve. Further described are containers and nursing bottles comprising the breather valve along with methods of use of the breather valve and container/nursing bottle. The breather valve, container, nursing bottle and methods of use allow for the ability to adjust flow rate rapidly, provision of a breather valve that may be retrofitted or sold with a new container or nursing bottle; and a design of breather valve that is semi-permanent to fit.

A user controllable noncollapsible variable stream physiological dispenser for a container is disclosed which comprises a nipple having a top nipple portion which extends to an intermediate concave section which extends to a lower dome-shaped body and to a flange, the flange used for being held to a bottle by a collar, the nipple having openings formed in the top nipple portion, an open bottom provided at the flange with the nipple having a hollow body through which liquid may pass from the open bottom through the body and out the openings.

A user controllable noncollapsible variable stream physiological dispenser for a container is disclosed which comprises a nipple having a top nipple portion which extends to an intermediate concave section which extends to a lower dome-shaped body and to a flange, the flange used for being held to a bottle by a collar, the nipple having openings formed in the top nipple portion, an open bottom provided at the flange with the nipple having a hollow body through which liquid may pass from the open bottom through the body and out the openings.

The invention relates to a container (1) comprising at least one connection opening (3, 4) and at least one connection part (6, 8), wherein grooves (12) and engaging elements (10) are provided as interacting connection elements to connect the container (1) and the connection part (6, 8), and in the connected state a respective engaging element (10) is arranged in a receiving portion (14) of a groove (12), which receiving portion is arranged substantially perpendicular to a longitudinal axis (2) of the container (1), wherein the container (1) and the connection part (4, 6) have run-on elements (9a, 9b) with run-on surfaces (9c) which run obliquely with respect to the longitudinal axis (2) of the container, which run-on surfaces interact by means of rotational movement between the container (1) and the connection part (6, 8), in such a way that the engaging elements (10) can be moved out of the receiving portion (14) of the respective groove (12) and, in a rotated position, the engaging connection between the container (1) and the connection part (6, 8) is released.