A medical device including an application device with a first fluid path and a container movably attached to the application device. The container and the application device have a second fluid path therethrough, the container includes an inner chamber that is intermediate proximal and distal portions of the second fluid path, the inner chamber is fluidly isolated from the proximal portion of the second fluid path at a first position of the container, and the inner chamber is fluidly coupled to the proximal and distal portions of the second fluid path at a second position of the container. The first fluid path bypasses the container and the passage of fluid through the first fluid path is separately controllable from the passage of fluid through the second fluid path.

A battery-powered liquid pump air-assist misting sprayer that includes an air outlet ducting system that significantly improves both the ergonomic target focus and the pattern orientation efficiency, especially as when spraying insecticides along bushes and trees.

A venturi cartridge regulating device for an air-particle dispensing system is provided, which is designed to be pre-assembled and installed in a chamber capable of atmospheric pressurization to regulate the required proportions of air and particle in a mixture formed upon activation by a propellant source and to direct a stream of a particle-gas mixture out of the chamber toward a targeted surface. The apparatus includes a chamber comprising a first plurality of inlet holes and a second plurality of inlet holes; and a conduit arranged at least partially within the chamber having a first opening arranged in the chamber. The first plurality of inlet holes is configured to intake a first substance, the second plurality of inlet holes is configured to intake a second substance, and a mixture of the first and second substances is created and mixture enters the conduit through the first opening.

A sprayer includes a spray gun and a hopper. An air source provides compressed air to the sprayer to both eject fluid from the spray gun as a spray and to pressurize the hopper. The spray gun includes passages for providing compressed air to the nozzle for spraying and to the hopper for pressurizing the hopper. The spray gun further includes a relief valve for venting pressurized air from the hopper. The hopper receives the compressed air through a port in the hopper, and the compressed air assists the flow of material out of the hopper and into the spray gun.

Techniques related to retroreflective surface layers for micro-mobility transit vehicles are disclosed. A retroreflective surface layer may be formed over at least a portion of a component of a micro-mobility transit vehicle by forming a powder coat layer over the portion of the component and baking the powder coat layer to cure the powder coat layer. An uncured clear coat layer may be formed over the powder coat layer. The uncured clear coat layer may be impregnated with a plurality of glass beads via an air-pressure applicator. The uncured clear coat layer impregnated with the glass beads may be baked to cure the clear coat layer. The retroreflective surface layer may include the powder coat layer, clear coat layer, and the plurality of glass beads distributed within the clear coat layer. The retroreflective surface layer may reflect incident light back to its source with minimal scattering of the light.

A method and system for feeding a lubricating or releasing agent from a dosing station to one or more pressing tools arranged in a pressing chamber of a tablet press. The tablet press is configured with a feed pipe for feeding the lubricating or release agent from the dosing station to the one or more pressing tools of a pressing chamber of the tablet press and the feed pipe is configured with a shut-off valve disposed in-line with the feed pip for controlling the flow of the lubricating or release agent to the pressing chamber. The method comprises the steps of: producing a negative pressure with respect to the surroundings of the pressing chamber of the tablet press, measuring a pressure in one of the feed pipe and the pressing chamber, and issuing a signal indicative of the measured pressure and issuing an enable signal to open a valve in response to the pressure signal.

The invention relates to a dispensing device (11) for spraying a sprayable medium, in particular a fluid or powder, which device is designed as a handheld apparatus, in which a compressed air device (86) is provided, comprising a spray head (14) that is connected to the housing (12) and is intended for dispensing the medium, comprising a fluid line (44) leading from the storage container (41) to the spray head (14) and comprising a supply line (36) leading from the compressed air device (86) to the spray head (14), and comprising a first nozzle (38) that is connected to the supply line (36) and, separately therefrom, comprising a second nozzle (46) that is connected to the fluid line (44) and that protrudes into an airflow emerging from the first nozzle (38), such that an atomizing zone (49) is formed outside of the spray head (14), wherein, in a plan view of the outlet opening (83) of the first nozzle (38), the second nozzle (46) covers at least 1% of an internal cross section of the first nozzle (38).

A sprayer includes a spray gun and a hopper. An air source provides compressed air to the sprayer to both eject fluid from the spray gun as a spray and to pressurize the hopper. The spray gun includes an airflow controller for controlling the flow of the compressed air to a nozzle of the spray gun, a pressure regulator for regulating a pressure of the compressed air flowing to the hopper, and a relief valve between the pressure regulator and the hopper. The hopper receives the compressed air through a port in the hopper, and the compressed air assists the flow of material out of the hopper and into the spray gun.

A sprayer includes a spray gun and a hopper. An air source provides compressed air to the sprayer to both eject fluid from the spray gun as a spray and to pressurize the hopper. The spray gun includes an airflow controller for controlling the flow of the compressed air to a nozzle of the spray gun, a pressure regulator for regulating a pressure of the compressed air flowing to the hopper, and a relief valve between the pressure regulator and the hopper. The hopper receives the compressed air through a port in the hopper, and the compressed air assists the flow of material out of the hopper and into the spray gun.

The disclosure describes an inhaler having a dosing chamber in which medicament is aerosolized with a vibrator piezoelectric transducer. A spacer is provided between a face of the transducer and a wall of the dosing chamber.