A self-propelling container having: a top; a bottom; a plurality of vertical walls extending between the bottom and the top; an inner bag for holding contents to be dispensed; a female coupling configured to receive and establish a friction seal with a male coupling of an external device for inserting or extracting the contents to or from the container after the friction seal is established between the female and male couplings; and at least one independent panel positioned inside the container; a compressible element associated with the at least one independent panel wherein during filling of the inner bag the compressible element is compressed, thus causing the at least one independent panel to exercise pressure onto the inner bag, and thus, helping to empty the inner bag.

The invention discloses a device, a container and a method for measuring a liquid volume in a container based on pressure sensing. The measuring device includes a compression member, a pressure sensor, a force transmission member, an air pressure sensor and a controller. The compression member is hermetically connected to the container under measurement to form a sealed space in the container, and compresses the air in the sealed space under external force; the force transmission member converts the air pressure in the sealed space into a pressure applied on the pressure sensor; and the pressure sensor measures the pressure applied from the force transmission member before and after the compression. The present invention accurately measures the liquid volume in the container, effectively eliminates the impact of the shaking of the liquid on the measurement result, and is conveniently used to detect water quality in the natural usage.

The invention discloses a container stopper capable of being rapidly opened and closed, comprising a columnar plug body, the plunger body includes a stopper rod, the bottom portion of the stopper rod is provided with a base, the shape and size of the base correspond to the shape and size of the straight section of the container mouth or the minimum cross section of the container, the upper part of the base is provided with an annular plug body, a foldable and deformable elastic seal cartridge is arranged between the annular plug body and the base, the annular plug body and the base can both move mutually along the axial direction of the container in the container mouth under the effect of an external force to press the elastic seal cartridge, and the seal ring and the base together form a sealing layer which realizes the rapid closing of the container.

The application discloses a separate type electric wine dispenser and preserver, including: a wine dispensing main unit and a stopper component. The lower part of the wine dispensing main unit is provided with a connector. A liquid guide chamber and an air guide chamber are arranged in the connector. The upper part of the stopper component is provided with a stopper valve. The upper part of the stopper valve is provided with an air inlet hole and a liquid guide hole protruding out of the stopper valve. The air inlet hole corresponds to the air guide chamber in position. The liquid guide hole is inserted in the liquid guide chamber. After wine dispensing, the separate type electric wine dispenser and preserver can seal a bottle for preservation by simply removing the wine dispensing main unit while the stopper component remains being kept on the bottle.

Methods and systems for accurately and securely dispensing high value beverages are presented herein. A beverage distribution system includes one or more replaceable beverage cartridges mounted to a beverage dispensing device. Each of the beverage cartridges includes a fluid reservoir with an output port, an output control valve, a flowmeter, and a local controller. The local controller receives signals from the flow meter and determines a cumulative amount of beverage fluid dispensed from the beverage cartridge based on the received signals. In one embodiment, the beverage dispensing device includes a fluid pump and a master controller. The master controller also estimates the cumulative amount of beverage fluid dispensed from each beverage cartridge based on control commands communicated to each beverage cartridge. If a difference between the estimated cumulative amounts of fluid dispensed from a beverage cartridge exceeds a predetermined threshold value, an alert is generated.

A keg system for dispensing a liquid has an air compressor device with a pump operably controlled by a controller powered by a power source, the pump functioning to pump air from an air intake to a port that is connected with a pneumatic hose. The air compressor device further has a pressure sensor operably connected with the controller so that the pump is automatically stopped once a sensed pressure reaches a predetermined selected pressure. The keg system further has a keg container having a base and an upwardly extending sidewall that extends upwardly from the base to a top portion to form an interior chamber, the interior chamber being adapted to contain the liquid. A coupler is mounted the top portion of the keg container, and an air inlet port of the coupler is in fluid communication with an air outlet, so that when the pneumatic hose is connected with the inlet port, air pumped from the air compressor device flows into the keg container for pressurizing the interior chamber of the keg container. The system further has a dip tube for dispensing the liquid from the keg container.