Apparatus and methods for precise measurement, dispensation and application of organic compounds, in particular cannabis-derived additives, to products for human consumption. The apparatus comprises a combination apparatus comprising one or more reservoirs containing the additives and a dispensing assembly operative to transfer the additives from the one or more reservoirs in precisely controlled quantities. The additives may be liquid or powdered. The apparatus further comprises an application apparatus for applying the measured additive to a dosing target. The application apparatus includes a first electrostatic charging device in operative connection to the dosing target and a second electrostatic charging device of an opposite polarity charge in operative connection with the additives, such that the additives are attracted to the dosing target.

An electrostatic fluid delivery system that is configured to deliver fluid, such as a disinfectant fluid, onto a surface by electrically charging the fluid and forming the fluid into a spray that can be directed onto a surface, such as a surface to be cleaned. The system is powered by a DC (direct current) power system. The device can electrically or positively charge a liquid or gas.

A printer is configured to provide a stream of extraction gas that extracts a printing fluid from a printing nozzle. An electrode produces an electric field that accelerates the extracted printing fluid toward a printing substrate. The printer can be configured to selectively turn the electric field and the stream of extraction gas off and on to enable printing in a gas-extraction mode, an e-assisted gas-extraction mode, or an e-jet mode. The stream of gas can be provided by a second nozzle concentric with the printing nozzle, and the electrode can be part of the second nozzle. A third nozzle can discharge a focusing gas around the extracted printing fluid.

A spray ionization device comprising: a first tube that has a first flow path through which a liquid can flow and a first outlet on one end thereof from which the liquid is sprayed; a second tube that surrounds the first tube with a gap therebetween, has a second flow path through which a gas can flow, and has a second outlet on the one end thereof; and an electrode that extends through the interior of the first flow path of the first tube, from the other end thereof to the one end, said electrode being arranged such that the tip thereof is at the same position as the first outlet or is further on the other end side than the first outlet, and said electrode being able to apply a voltage to the liquid by means of a power source connected to the electrode.

The present invention is directed to an electrostatic sprayer for applying disinfectants, agricultural production, pesticides, and other chemicals and liquid solutions. The electrostatic sprayer may be used for indoor and outdoor applications. The electrostatic sprayer provides a solution tank for holding a treatment solution, a base for holding and protecting the mechanical and electrical components, including a power supply, solution pump, and electrostatic generator, of the electrostatic sprayer, a supply hose, and a spray wand. The solution tank further includes input and exit filters to remove particles that may damage the solution pump of clog the spray wand. The spray wand includes spray nozzles with backflow valves and metering disks to control the flow of the treatment solution and close the valve when the treatment solution is not sufficiently pressurized to pass through the backflow valve to prevent leak when not in use. An electrostatic switch is also provided for selectively powering on the electrostatic generator. The electrostatic generator provides a positive charge to an electrode in the solution tank and a negative charge to a grounding strip in the handle of the spray wand providing a negative pathway through Earth to the objects being treated enhancing the electrical attraction of the treatment solution to those items. A grounding strap is also provided to be worn by the user to reduce the resistance in the path between the grounding strip and Earth by bypassing some of the user's clothing and protective gear that may provide resistance to the path.

The invention provides particles, compositions including the particles, and methods of making the particles using electrospray. In certain embodiments, the particles allow for high concentrations of a therapeutic or diagnostic agent to be delivered at low viscosity. Particles may also exhibit beneficial properties with respect to stability.

The invention provides particles, compositions including the particles, and methods of making the particles using electrospray. In certain embodiments, the particles allow for high concentrations of a therapeutic or diagnostic agent to be delivered at low viscosity. Particles may also exhibit beneficial properties with respect to stability.

An electrospray apparatus including a plurality of emitters, disposed on a substrate, wherein the plurality of emitters can have a narrow parameter distribution.

The present invention is directed to methods of improving accuracy of droplet metering using at least one on-actuator reservoir as the fluid input. In some embodiments, the on-actuator reservoir that is used for metering droplets includes a loading port, a liquid storage zone, a droplet metering zone, and a droplet dispensing zone. The on-actuator reservoirs are designed to prevent liquid flow-back into the loading port and to prevent liquid from flooding into the droplet operations gap in the dispensing zone.