A device for dispensing a liquid medium (26) from a container (1), comprising a housing (13), a metering drum (2) accommodated therein and a sealing disk (14), the housing (13) having a drum outlet (3) and a system air admission structure (22), and the sealing disk (14) having an admission opening (12) and a drum inlet (4). The metering drum (2) comprises a metering chamber (5), a chamber outlet (6) and a chamber inlet (7). The metering drum (2) further has a rotary valve (8), said rotary valve (8), in a first working position, connecting the drum inlet (4) to the chamber inlet (7) while closing the chamber outlet (6), thereby admitting air to the container (1) and removing air from the metering chamber (5). In a second working position, The metering drum (2) closes the chamber inlet (7) while connecting the drum outlet (3) to the chamber outlet (6), thereby further admitting air to the metering chamber (5) and the air admission channel (11) being connected to the system air admission structure (22).

A device for dispensing a liquid medium (26) from a container (1), comprising a housing (13), a metering drum (2) accommodated therein and a sealing disk (14), the housing (13) having a drum outlet (3) and a system air admission structure (22), and the sealing disk (14) having an admission opening (12) and a drum inlet (4). The metering drum (2) comprises a metering chamber (5), a chamber outlet (6) and a chamber inlet (7). The metering drum (2) further has a rotary valve (8), said rotary valve (8), in a first working position, connecting the drum inlet (4) to the chamber inlet (7) while closing the chamber outlet (6), thereby admitting air to the container (1) and removing air from the metering chamber (5). In a second working position, The metering drum (2) closes the chamber inlet (7) while connecting the drum outlet (3) to the chamber outlet (6), thereby further admitting air to the metering chamber (5) and the air admission channel (11) being connected to the system air admission structure (22).

A measuring a closed-loop fluid transfer system is provided that includes a measuring adapter having a first end and a second ends, and a chamber located there between and configured to hold a volume of fluid. The measuring adapter includes a first receiving valve assembly located at the first end of the measuring adapter. The first receiving valve assembly includes a receiving valve member, at least a portion of which is separable from a portion of the first receiving valve assembly. This creates an opening that provides fluid communication to the chamber when a force is exerted on the receiving valve member of the first receiving valve assembly. A second valve assembly located at the second end of the measuring adapter includes a valve member. At least a portion of the valve member of the second valve assembly is separable from a portion of the second valve assembly to create an opening that provides fluid communication to the chamber.

A liquid dosing device for use with a liquid dispenser that includes a container for holding liquid in communication with a dispenser base, an outlet port for dispensing the liquid. The liquid dosing device includes a valve housing, a reservoir and a dosing cup. The valve housing is mounted to the dispenser base and includes an open top, an outlet port and a blocking region. The reservoir is mounted within the valve housing and includes at least one inlet port in communication with the dispenser base outlet port and at least one outlet port. The dosing cup is movably mounted within the valve housing in fluid communication with the reservoir and includes at least one inlet port in fluid communication with the reservoir outlet port, a blocking region, at least one outlet port and mechanism for moving the dosing cup between a fill position and a dose position to prevent spillage of the liquid being dispensed, or to dispense the liquid in defined quantities.

A liquid dosing device for use with a liquid dispenser that includes a container for holding liquid in communication with a dispenser base, an outlet port for dispensing the liquid. The liquid dosing device includes a valve housing, a reservoir and a dosing cup. The valve housing is mounted to the dispenser base and includes an open top, an outlet port and a blocking region. The reservoir is mounted within the valve housing and includes at least one inlet port in communication with the dispenser base outlet port and at least one outlet port. The dosing cup is movably mounted within the valve housing in fluid communication with the reservoir and includes at least one inlet port in fluid communication with the reservoir outlet port, a blocking region, at least one outlet port and mechanism for moving the dosing cup between a fill position and a dose position to prevent spillage of the liquid being dispensed, or to dispense the liquid in defined quantities.

A nozzle opening and closing device for electrolyte injection comprises a nozzle having a discharge outlet for injecting an electrolyte into a battery assembly. The nozzle opening and closing device for electrolyte injection further comprises an opening and closing plate rotatably mounted on the nozzle, and provided to open or close the discharge outlet of the nozzle, and an opening and closing control part provided to control whether the opening and closing plate is opened or closed based on the weight of the electrolyte applied to the opening and closing plate.

A volumetric feeder may comprise a driving unit, a storage tank, a sealing unit, a switch unit and a feeding unit. An interior space of the storage tank is horizontally divided into a feeding space and a preparing space which have the same volume such that the feeding material, including viscous or cement-like materials, in the preparing space is configured to be transported into the feeding space with the same volume at a time to achieve volumetric feeding effect. Also, the feeding material in the feeding space is moved by a piston in a pushing manner thus preventing the feeding material from damage or heating during feeding process.

A metering device for metering and supplying media via fluid lines to a plurality of target devices, wherein the metering device includes an entry disc having a plurality of entry-side connections which can each be connected to a container, and an actuator which is displaceable relative to the entry disc and includes a plurality of through-channels. Each through-channel can be connected to a target device, wherein due to a displacement of the actuator relative to the entry disc, in each case at least one of the through-channels can be brought into communicative connection with one of the connections. The metering device includes a plurality of pumps which can be activated by a controller of the metering device and which are configured for removing medium from the container and for conveying it to the target device. Each through-channel is associated with a pump that is arranged downstream of the through-channel.

A metering device for metering and supplying media via fluid lines to a plurality of target devices, wherein the metering device includes an entry disc having a plurality of entry-side connections which can each be connected to a container, and an actuator which is displaceable relative to the entry disc and includes a plurality of through-channels. Each through-channel can be connected to a target device, wherein due to a displacement of the actuator relative to the entry disc, in each case at least one of the through-channels can be brought into communicative connection with one of the connections. The metering device includes a plurality of pumps which can be activated by a controller of the metering device and which are configured for removing medium from the container and for conveying it to the target device. Each through-channel is associated with a pump that is arranged downstream of the through-channel.