Systems and methods for spraying a liquid treatment solution can include a syringe attachment device and a handheld device, which are configured to be coupled together in an assembled position of the system. The syringe attachment device can be configured to secure a syringe containing the liquid treatment solution. In an example, the treatment solution can include autologous skin cells for treating a tissue wound. The handheld device can have a movable slide configured to dispense the treatment solution from the syringe. In an example, the spray deposition system can include a cover positioned to provide an impervious barrier between at least a portion of the syringe attachment device and the handheld device. The cover can be attached to the syringe attachment device prior to coupling the devices together. In an example, the cover can have a generally tubular shape with a closed end and an open end. The handheld device can be inserted into the cover and the cover can enclose the handheld device in the assembled position. In an example, the cover can be sterile and at least a portion of the syringe attachment device can be sterile. In an example, after delivery of the treatment solution, the syringe attachment device can be disposed of and the handheld device can be reused.

The invention pertains generally to an improved fluid dispensing device, particularly a dispensing device which employs at least one hemispherical domed cannister source of reactants and which uses a color-changing dispensing plastic tip to inform the end-user if the reactants are at a proper use temperature.

The invention relates to a spray device having a spray nozzle unit and at least one further spray nozzle unit. Each spray nozzle unit has at least one spray nozzle body, wherein said at least one spray nozzle body comprises a chamber for receiving a pressurized fluid. Said chamber is bounded by a spray wall having at least one spray orifice that extends through said spray wall and opens to an external environment. Each of said at least one orifice in a spray wall has a substantially identical predetermined size lying in a predetermined range and releases a mono disperse spray jet of the pressurized fluid fed from the associated reservoir. Said range within said first spray nozzle unit differs from said range within said at least one further spray nozzle unit, particularly said ranges do not overlap.

A connecting device for connecting two or more components to one another, includes an inlet section and an outlet section. The inlet section and the outlet section respectively include one or more connectors for each of the two or more components, with one or more passages extending between the inlet section and the outlet section, with the connecting device being of single piece design and being plastic

A mixing apparatus including a mixing region can have an inlet and an outlet. The mixing region can be operable to couple with a solution housing, thereby defining a mixing chamber. A stem can extend from a surface of the mixing region and the inlet can be disposed at a distal end of the stem. A wing can disposed at a proximal end of the stem and adjacently engaged with the surface of the mixing region and have a leading edge and a trailing edge.

The present disclosure relates to a metering and mixing device including a cartridge holder (1) and a cartridge (2). A surface-to-surface, and also positive and non-positive connection exists between the cartridge and the holder. The present disclosure also relates to a method for coating substrates with two- or multicomponent coating media, in which the metering and mixing device is used.

A device for dispensing a fluid topical composition includes a reservoir storing the composition and dispensing a pressurized flow of the composition. The device also includes an accumulator having an expandable chamber in fluidly communication with the reservoir. The chamber is biased towards a deflated configuration so that, when filled with the composition the chamber expands against this bias applying pressure to the composition stored therein. The device includes a supply valve regulating the flow of the composition from the reservoir to the accumulator, and a pressure sensor. The device further includes a processing arrangement analyzing data from the sensor to determine whether pressure in the accumulator is above a predetermined threshold and controlling the supply valve to maintain the pressure within a desired pressure range. The device also includes a deposition arrangement dispensing the composition from the accumulator under control of the processing arrangement.

The invention relates to a measuring and mixing device including a cartridge holder (1) and a cartridge (2), a flat, at least form-fit connection being mounted between the cartridge and the cartridge holder. The invention also relates to a method for coating substrates with two or multi-component coating agents, in which the measuring and mixing device is used.

The invention is a universal blower attachment that will fit any standard handheld leaf blower or standard backpack blower and a system for atomizing and dispensing insecticides and other liquids, allowing a pressurized tank to continually force liquid through the nozzle for continuous atomization and spraying into the exhaust stream of the leaf blower.

The invention pertains generally to an improved fluid dispensing device, particularly a dispensing device which employs at least one hemispherical domed cannister source of reactants and which uses a color-changing dispensing plastic tip to inform the end-user if the reactants are at a proper use temperature.