To modify the headspace in a container to remove vacuum pressure, a container has a seal or cap which may provide a temporary opening into the container which is sealable under compression to provide a controlled raising of the internal pressure as the heated contents of the container cools. A sealing chamber (84) may enable the introduction of a fluid into the headspace (23b) to force the fluid level (40) lower. Other methods and apparatus are described.

An additive delivery system may incorporate a cartridge system, including a container cap and a reservoir assembly that provides for storage of an additive. The container cap includes a mixing nozzle for mixing of the additive with a base fluid as the base fluid flows from the base fluid container through the cartridge. A one-way valve prevents backflow of base fluid and/or mixed base fluid/additive from an area downstream of the mixing nozzle such that the base fluid supply remains in a pure state.

An embodiment of a cap for a bottle may comprise a body and nozzle. The body may include an annular wall, an aperture configured to receive a nozzle, and a plug rigidly attached within the aperture. The nozzle may be movable between a retracted position in which fluid cannot pass between plug and nozzle, and an extended position in which fluid can pass between plug and nozzle. The nozzle may include an inner wall and an outer wall. The outer wall may have at least one longitudinal recess. The longitudinal recess may allow selective passage of air. The longitudinal recess may allow air to flow through the recess and into the bottle when the nozzle is in the extended position, and is contained within the aperture and is thus configured to prevent air from flowing through the recess and into the bottle when the nozzle is in the retracted position.

Exemplary embodiments of a safety nozzle and safety valve for portable gasoline containers are provided. A safety nozzle for a container can be provided, comprising a proximal end configured for placement in a safety valve, a distal end having a spout, a housing having an elongated portion extending from the proximal end to the distal end, a sliding bezel extending from an exterior of the housing to a sliding piston in an interior of the housing, a piston head having a first end at the proximal end and a second end for abutment with the sliding piston in the interior of the housing, and a retaining spring configured to maintain a holding pressure on the sliding piston to maintain the piston head in a closed position preventing liquid flow from the proximal end into the housing.

A container (10) to dispense a liquid such as sauce. The container (1.0) has a resilient deformable body (11) that may be compressed to dispense the liquid from the interior (55) of the body (11). Mounted on the body (11) is a cap (37) that is movable along a path (axis 13) between a closed position and an open position. In the open position the upper opening (38) is open to allow the liquid to be dispensed. Preferably the path is linear.

Systems and methods for filling containers with heated fluids are described. In some embodiments, a method may include one or more of introducing a fluid through an open end of the container, providing a seal or cap to close and seal the filled container, cooling the heated fluid to create a first internal vacuum pressure, providing a pressurizing chamber, providing or creating an opening through the seal or cap, providing at least one fluid through the opening or aperture, and sealing the opening or aperture under a second internal pressure higher than the first internal vacuum pressure.

A formulation dispensing device can include a cartridge receptacle to accommodate and/or secure a beverage ingredient cartridge and permit contents within the cartridge to flow into a bottle or beverage container. Additionally, a formulation dispensing device can include a drink through valve that can permit mixed contents from a beverage container to flow through the drink through valve and be consumed. For example, the formulation dispensing device can include ingredients that can be added to a range of different drinks, including sports drinks, dietary drinks, and as a critical life supporting drinks in humanitarian situations. The formulation dispensing device can also include a lid configured to pivot between open and closed positions and can seal the dispensing device which allows the beverage container to be inverted during consumption without leakage through the first aperture.

A closure assembly includes a top, a base, and a follower. The top includes a plurality of top teeth extending from the inner surface and arranged around a fluid orifice. The base is coupled to the top, wherein the top is moveable relative to the base. The base includes a central hub defining a cam path. The follower includes a plurality of top follower teeth engaged with the plurality of top teeth of the top and a plurality of base follower teeth disposed in the cam path of the base. The top and the follower are biased away from the base, and depressing the top relative to the base causes the follower to rotate relative to the top between an open position in which a fluid flow path is open to the fluid orifice and a closed position in which the fluid flow path is closed to the fluid orifice.

An apparatus provides a water bottle mouthpiece attachment which can filter microplastics and other contaminant substances from bottles, particularly disposable plastic water bottles. The filter of the apparatus includes a filter housing that is attached to a cap that fits inside a common plastic bottle. Soft rubber rings, tapering from to radially larger on the top to radially smaller on the bottom in a generally conical fashion, ensure a watertight fit to the inside opening of any drinking bottle. A friction closing/opening spout at the top of the filter enables selective opening of the bottle and prevents accidental spillage of bottle contents. The filter housing is also offset from the center, giving space to an air valve that allows air to enter the bottle without disturbing the flow of water from the bottle, thus providing optimal lamellar flow without allowing fluid to escape through the air valve during consumption.

A cup lid that has a lid body and a push piece; a push piece moving groove is formed on the lid body, a drinking opening is formed in the push piece moving groove close to a cup edge; the push piece is slidable in the push piece moving groove in a reciprocating manner and is limited in the push piece moving groove by limiting mechanisms, and the push piece can seal the drinking opening with a sealing element; further, the cup lid contains lifting mechanisms between the lid body and the push piece. The distance between the push piece and the bottom side of the push piece moving groove is adjusted while sliding the push piece, so as to reduce the friction against the sealing element and ensure a clean and hygienic drinking.