Disclosed is a hand piece for an aesthetic and medical device including a first body portion having a cylindrical structure in which a cartridge mounting space a second body portion bound to a lower side of the first body portion and having a cylindrical structure having an upper side on which an air pressure providing portion configured to provide air pressure to the cartridge-mounting space and the auxiliary air flow paths is mounted and a spray head portion bound to an upper body of the first body portion and having a central part on which a spray needle bound to an upper body of the cartridge to upwardly spray the liquid cosmetic product or liquid medication accommodated in the cartridge is mounted.

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.

Dispensers are disclosed that are adapted to be coupled to a reservoir to dispense a fluid contained in the reservoir. A dispenser includes a pump having a pump chamber, an intake conduit, a discharge conduit, and a pulsation dampener. The pulsation dampener includes a housing with an interior volume and an opening. Further, the pulsation dampener includes a spring biased movable piston located in the interior volume and defines a variable volume headspace between the piston and the opening of the pulsation dampener, the opening being in fluid communication with the discharge conduit.

Handheld gas spray systems for mixing and dispensing multi-component compositions.

A handheld misting device includes a sonic generator, a power source coupled to the sonic generator, at least one reservoir containing a first liquid, and a conduit from the at least one reservoir. The sonic generator includes a converter and an elongate horn comprising a first horn section coupled to the converter and a second horn section physically connected to and removable from the first horn section. Sonic energy delivered to the first horn section is conducted to the second horn section. The conduit transports liquid from the at least one reservoir to the second horn section to a delivery opening distal the first horn section.

Applicant discloses a two part polymer mix for use in the aircraft industry that is applied with pneumatic mix and spray gun. The two part cartridge is used in the mix and spray gun so the mix is applied immediately upon mixing, but the two components are kept separated unless the gun is applying the mix. The mix cures to form a clear sealant that allows for inspection of cracks and corrosion beneath the sealant. It cures quickly so that the coated part may be further processed, for example in the assembly line during aircraft build.

There is provided an applicator including: a first liquid flow path through which a first liquid containing fibrinogen passes; a second liquid flow path through which a second liquid containing thrombin passes; a confluence section in which the first liquid and the second liquid merge with each other to form a mixed liquid; and a gas flow path through which a gas for jetting the mixed liquid passes. At least part of a wall portion defining the confluence section is composed of a gas-permeable membrane that is impermeable to the mixed liquid and permeable to the gas.

Applicant discloses a two part polymer mix for use in the aircraft industry that is applied with pneumatic mix and spray gun. The two part cartridge is used in the mix and spray gun so the mix is applied immediately upon mixing, but the two components are kept separated unless the gun is applying the mix. The mix cures to form a clear sealant that allows for inspection of cracks and corrosion beneath the sealant. It cures quickly so that the coated part may be further processed, for example in the assembly line during aircraft build.

Various embodiments concern a sprayer having a blower that outputs a HVLP flow of air into a hose, the hose connecting with a spray gun. A pressure sensor measures pressure of the HVLP air within the hose via a tube that branches from a fitting to which the hose connects. If the sensor indicates that the pressure level has increased above a threshold amount, indicating that the trigger of the spray gun is not being actuated, then power output to the blower is reduced (e.g., stopped). HVLP air is trapped within the hose by two valves when the trigger is not actuated. When the sensor indicates that the pressure level has decreased, corresponding to release of the trapped HVLP air into the gun for spraying by actuation of the trigger, power to the blower is increased (e.g., resumed).

A number of sealants are provided that are resistant to degradation by aircraft fluids. In some embodiments, the sealants are resistant to degradation by Jet A fluid and at least one of the three types of hydraulic fluids typically used in aircraft. These embodiments are also typically cure in place from a two-part polyurethane or polyurea mix, with cure to a visibly clear coating. In some embodiments, they may be sprayed on an aircraft surface or applied by hand (brush or injectable). In other of these embodiments, the sealants comprise, at least in part, a cured, soft, tacky polyurethane gel that is resistant to at least one of a synthetic hydrocarbon based or mineral oil based hydraulic fluid.