Nozzle Assemblies and methods of use for producing a liquid jet are disclosed that may be permit adjustable time delays between mixing of fluids and observation of reactions. An example nozzle assembly includes: a housing having an inlet and an outlet and a first channel defined therebetween, where the housing includes a gas focusing aperture defining the housing outlet; an intermediate tube disposed within the first channel of the housing, where the intermediate tube has an inlet and an outlet and defines a second channel therebetween; and a central tube disposed within the second channel of the intermediate tube, where the central tube has an inlet and an outlet and defines a third channel therebetween, where the central tube outlet is longitudinally spaced apart from the intermediate tube outlet such that the intermediate tube outlet is disposed between the central tube outlet and the gas focusing aperture's inlet.

A personal formulation device for mixing and dispensing customized formulations from ingredient reservoirs carried by the device. The device may include a plurality of miniaturized progressive pumps with a flexible coupling between the motor and the pump. The coupling may include a spring (40). The device may include a spacer sleeve (62) having an internal diameter tapered to closely follow the motion envelope of the spring (40). Each pump may include a retainer (60) that is threaded into the interior of the pump body (52) to retain the spacer sleeve (62) and the drive end (120) of the rotor (34). Each pump may include a stator with an integrated flange seal (36). The flange seal (36) may extend around the circumference of the stator and be sandwiched between portions of the pump body (52). The stator may have a noncircular shape that keys the stator within the pump body. The pump may include an optical metering system.

The present invention generally relates to the manipulation of fluids using acoustic waves such as surface acoustic waves. In some aspects, one fluid may be introduced into another fluid via application of suitable acoustic waves. For example, a fluid may be added or injected into another fluid by applying acoustic waves where, in the absence of the acoustic waves, the fluid cannot be added or injected, e.g., due to the interface or surface tension between the fluids. Thus, for example, a fluid may be injected into a droplet of another fluid. Other embodiments of the invention are generally directed to systems and methods for making or using such systems, kits involving such systems, or the like.

Provided is an emulsion matrix ground station with intrinsic safety, which relates to the technical field of emulsion matrix preparation process and apparatus of mobile ground auxiliary equipment in civil explosive industry. The emulsion matrix ground station may include a water phase tank, an oil phase tank, a water phase pump, an oil phase pump and a static emulsification device. The water phase pump may have an inlet connected to an outlet of the water phase tank by a pipeline, and an outlet connected to a water phase inlet of the static emulsification device by a pipeline. The oil phase pump may have an inlet connected to an outlet of the oil phase tank by a pipeline, and an outlet connected to an oil phase inlet of the static emulsification device by a pipeline.

A system for mixing drilling fluids that includes a fluid supply tank for supplying an unmixed drilling fluid, a mixing reactor fluidly connected to the fluid supply tank, the mixing reactor including an intake and an outlet; a mixing chamber disposed between the intake and the outlet, an inlet for injecting a compressible driving fluid into the mixing chamber and an inlet for injecting an aerating gas into the mixing chamber is disclosed.

A system for mixing a first fluid with one or more additional fluids to create a mixed fluid and for dispensing the mixed fluid is disclosed. The dispensing system includes a mixing tank; a first pump for the first fluid; a second pump for a second fluid; and a sensor positioned adjacent the mixing tank wherein the sensor outputs a signal based on a force exerted by the mixing tank in a direction toward the sensor. A controller of the system execute a program to: (i) receive the signal from the sensor, and (ii) operate the first pump for a first time period and operate the second pump for a second time period based on the signal from the sensor such that the first fluid and the second fluid are delivered to the mixing tank before being delivered to a storage tank for dispensing the mixed fluids.

An apparatus for separating a mixture of two liquids of different densities which liquids are substantially insoluble in one another includes a hollow permeable body having a recess for receiving a first fluid which can flow from the recess through the permeable body to an exterior of the permeable body. A housing surrounds and is spaced from the exterior of the permeable body. The housing has an inlet for a second fluid and an outlet for a mixture of the first and second fluid. A baffle or baffles are provided in the space between the exterior of the permeable body and the housing, and to define a mixing channel in space between the exterior of the permeable body and the housing so that the second fluid can enter the housing inlet and flow through the mixing channel to the outlet, while picking up fluid on the exterior of the permeable body.

The mixing system for ready-to-use flush solutions is characterized by an RO system, a mixing unit that is connected to the RO system and that contains a mixing chamber, to which high-purity water can be fed from the RO system and flush solution concentrate can be fed from a concentrate source, and a flush solution link connector, wherein the RO system and the mixing unit form a filling station, a mobile flush solution container that contains a pressurized container that receives a flush solution bag that can be coupled to the flush solution link connector of the mixing unit, and a computer and control mechanism for all measurement and monitoring tasks during the local production of a flush solution, wherein the mobile flush solution container and the filling station are provided with sensors by means of which wireless communication is made possible between the mobile flush solution container and the filling station.

The invention discloses a method for predicting the pH error during mixing of an aqueous buffer comprising at least one weak acid species and/or at least one weak base species, which comprises the steps of: a) selecting a start composition of the buffer, giving start values for pH and/or buffer concentration; b) calculating the concentrations of all ionic species present in the buffer at a specified pH value from the total composition of the buffer and available dissociation constants; c) calculating the contribution of each of said ionic species to a total pH variance from the specified pH value, the buffer concentration, the calculated concentrations of the ionic species and variances in amounts of buffer components; d) calculating the pH variance, and; e) setting the variance or the square root of the pH variance as the pH error.

An adjustable additive cartridge that provides adjustable metering of additive to a base fluid as the base fluid is flowing through the cartridge. A spout is mounted for limited rotation within a base element of the cartridge. Rotation of the spout results in varying degrees of flow of additive into a base fluid flow path through the cartridge. The cartridge may be used with a portable beverage container, such as a sports bottle or off-the-shelf water bottle. The supply of base fluid in a container used with the cartridge may be kept in an unmixed, pure state, and other cartridges, each having different additives (i.e., flavors) may be used interchangeably with the same base fluid supply. The cartridge allows a consumer/user to experience different additives, such as different flavors or supplement compositions, for a given supply of base liquid in a single container. A check valve on the cartridge prevents backflow of the base fluid. An integrated filter for filtering base fluid flowing into the cartridge may be provided. The additive cartridge may be sealed to provide for extended storage and to provide a user/consumer with evidence of integrity, quality and/or tampering prior to purchase and/or use. Visual and tactile indicators of the amount of additive being added to a base fluid may be provided. A container may retain a spare additive adjustable cartridge on the container.