A microfluidic system and method suitable for liquid mixing. The microfluidic system uses a pump (400) as the driving source, which draws at least two liquid samples that are to be mixed into the pump (400). Some air is drawn into the pump (400) as well. The system is also comprised of a mixing reservoir (203). The two liquids drawn into the pump (400) are pushed into the mixing reservoir (203). The air bubbles generated by the air have a stirring effect on the mixed liquid in the mixing reservoir (203). After the air bubbles burst, left at rest, and the air has risen to the top of the mixing reservoir (203), the mixed liquid is drawn back to the pump (400) and fed to the outlet (103) for subsequent detection steps. The addition of an antifoaming agent will prevent the accumulation of air bubbles during the mixing process. In the system, the valves (501, 502, 503, 504) and the sensors (601, 602, 603, 604) in the microfluidic channels (301, 302, 303, 304) will be used for the operation of the microfluidic system and for the precise control of the flow.

Provided are conveying apparatus and tinting apparatus. Conveying apparatus includes: first guide rail, including first section and second section connected to each other; compression module, movable along first guide rail and provided on first guide rail in fitted manner, compression module including base and compression assembly having adjustable relative positions, compression assembly being provided on base, gap existing between compression assembly and base, compression module having to-be-assembled state and compression state, and when compression module is in compression state, gap being narrowed to tightly clamp clamped member; and limiting structure, during compression module moves from first section to second section, state of compression module being switched by means of limiting structure, when compression module is located on first section, compression module being in to-be-assembled state, and when compression module is located on second section, compression module being in compression state.

A dispensing system includes a container containing a flowable base formulation to be dispensed, an additive mixing device, and an actuable pump engine which draws the flowable base formulation from the container and pumps it through the mixing device. The additive mixing device includes a body with an internal cavity, an additive ingredient within the cavity, and a flow path/mixing chamber between an input and an output. With each pump of the device the additive ingredient is introduced into, and mixed with, a flow of the base formulation traveling through the mixing device. Multiple additive mixing devices may be interchangeable for different formulations, and the mixing devices may be refillable.

A chemical dispensing device includes a turbine having a diluent inlet and a diluent outlet; a pump having a chemical inlet and a chemical outlet, wherein the pump is connected with and actuated by rotation of the turbine; a mixing chamber having a mixing inlet and a mixing outlet; wherein the diluent inlet is configured for direct connection with a supply of pressurized diluent; wherein the pump inlet is configured for connection with a supply of chemical concentrate; wherein the diluent outlet and chemical outlet are in fluid communication with the mixing inlet of the mixing chamber. The chemical dispensing device of the present disclosure may further include a backflow preventer separating the diluent outlet from the mixing inlet and being configured to prevent flow of fluid from the mixing chamber to the diluent outlet. An associated method of diluting and dispensing a chemical concentrate is also described.

A machine to automatically dispense at least one fluid product, in particular a liquid dye, comprising support members configured to support one or more dispensing units each having a tank, in which said fluid product to be dispensed is contained, a dispensing nozzle and a pumping member, configured to selectively convey a desired quantity of the fluid product from the tank to the dispensing nozzle and from the latter to an external container. Rapid attachment means, drivable by an actuation element, which can also be possibly driven manually, are present to allow the easy and simple positioning of each dispensing unit on the support means and the equally easy and simple removal of each dispensing unit from the support members.

Dilute chemical solution production device has a plunger pump and a chemical solution supply pipe that supply a chemical solution from a chemical solution reservoir. The end of the chemical solution supply pipe serves as an injection point for the chemical solution. The chemical solution supply pipe is inserted to an approximately central position in the radial direction of an ultrapure water passage, which is a first pipe, via a bore-through joint. Conductivity meter as a conductivity measuring means is provided on the downstream side of the bore-through joint, which serves as the injection point, and is connected to the previously described control means so that the plunger pump can be controlled in accordance with the measured value of the conductivity meter. The dilute chemical solution production device is capable of producing, with a simple structure, a dilute chemical solution having an extremely low concentration of acid/alkali or the like.

Systems for a plastic pump/actuator capable of containing and pumping organic solvents and lubricants and having a more desirable lubricity within the system. The system has at least two cylinders, with plungers therein, oppositely disposed from each other and configured to operably connect to a pump.

A vaping liquid dispensing and vending apparatus comprises filling module(s), user container holder(s), positioning mechanism(s) and controller module(s). The filling module(s) comprise: machine container(s) configured to hold vaping liquid(s), nozzle(s) configured to dispense vaping liquid(s) to user container(s), and measuring pump module(s) configured to pump a measured amount of vaping liquid(s) from machine container(s) to nozzle(s). The user container holder(s) are configured to hold user container(s). Positioning mechanism(s) align user container holder(s) with filing module(s). Controller module(s) execute production instructions causing vaping liquid formulations to be dispensed into user container(s).

A mixing assembly, device, system and method for operating are provided which includes a powder assembly holding a first container containing a powder, the powder assembly having a powder dispensing means for dispensing a predetermined quantity of the powder, a liquid assembly holding a second container containing a liquid, the liquid assembly having a liquid dispensing means for dispensing a predetermined amount of the liquid, and a mixing bowl for receiving the predetermined quantity of the powder and the predetermined amount of the liquid.

A liquid ejection device for a vehicle washing system includes a reservoir volume, a first supply line coupled upstream to the reservoir for supplying a first liquid with a first supply rate and a second supply line coupled upstream to the reservoir for supplying a second liquid with a second supply rate. The device further comprises a removal line coupled downstream to the reservoir with a blocking device for blocking liquid flow through the removal line, and a detection unit for detecting liquid volume in the reservoir and a mixing ratio of the liquids introduced into the reservoir; and a removal device for ejecting the liquid found in the reservoir through an ejection element coupled to the removal line. In addition, the device comprises a control unit which is coupled to the detection unit and the removal device and is set up to start an ejection process by the removal device upon reaching a predetermined liquid volume and a predetermined mixing ratio.