Disclosed herein are devices and techniques for providing for enhanced fluid mixing in a sample vial. A plunger head may be removably housed inside of a cap that is attached to a container; the cap may have an opening allowing a shaft, e.g., a probe or sipper shaft, to be inserted into the cap and into the plunger head. The shaft may be used to push the plunger head free of the cap, and then to reciprocate the plunger head within the container to mix the content. Withdrawal of the shaft may then cause the plunger head to disengage from the shaft and remain in the container.

Provided is an accommodating device for accommodating a different type of material and opening an accommodating part via a main body. The accommodating part, which is sealed, is disposed around a container spout part and coupled to the container spout part in a discharge direction of a material contained in the container and includes a storage space having a separate storage function. While the main body is disposed around the container spout part coupled to the accommodating part and is coupled to the container spout part, the storage space disposed in the accommodating part is opened to perform a dropping and mixing process in a storage space disposed in the container.

A container (10) for dispensing a liquid beverage concentrate is provided. The liquid beverage concentrate is formed of a first beverage component, disposed in a body (12), and a second beverage component, disposed within a cartridge (30) at least partially within the body, that are initially isolated. The first and second beverage components can be combined to form the liquid beverage concentrate by moving the cartridge, such as further into the body, to unblock a flow path (36) between the cartridge and the body.

A container includes a body, at least one partitioning plug, a stopper and a driving rod. The body has an opening on one end thereof, as well as a closed end on an other end thereof. The at least one partitioning plug is disposed in the body to divide the body into at least two chambers, wherein each of the at least one partitioning plug has a through-hole. The stopper is disposed at the opening of the body and has a through-hole. The driving rod is equipped with at least one blocking portion movably engaged in the through-hole or through-holes of the at least one partitioning plug, wherein one end of the driving rod protrudes from the opening of the body.

A container (10) for dispensing a liquid beverage concentrate is provided. The liquid beverage concentrate is formed of a first beverage component, disposed in a body (12), and a second beverage component, disposed within a cartridge (30) at least partially within the body, that are initially isolated. The first and second beverage components can be combined to form the liquid beverage concentrate by moving the cartridge, such as further into the body, to unblock a flow path (36) between the cartridge and the body.

A container (10) for dispensing a liquid beverage concentrate is provided. The liquid beverage concentrate is formed of a first beverage component, disposed in a body (12), and a second beverage component, disposed within a cartridge (30) at least partially within the body, that are initially isolated. The first and second beverage components can be combined to form the liquid beverage concentrate by moving the cartridge, such as further into the body, to unblock a flow path (36) between the cartridge and the body.

The present invention relates to a push button made from one selected from soft synthetic resin and soft silicone, comprising: a protruding annular rim protruding downward from the circumferential direction of the perimeter of a support part; a guide groove for the linear movement of a pressing part, which is recessed downward from a portion at which the outer circumferential end portion of the pressing part and the upper end of a height-varying part are in contact with each other; and a cylindrical airtightness-maintaining rod for vertically moving downward by the pressing of the pressing part.