A wet/dry sheet dispenser. The dispenser has an elongate refill which holds a liquid and fits into a complementary base. Liquid is selectively dispensed from the refill by longitudinal activation of a pump. The pump may be disposed on either the refill or base. Liquid flows from the refill, upwardly to a dispensing cup. The user may then, optionally, take a sheet and wet it with liquid from the cup at the point of use. This arrangement allows for convenient and selective one hand pump operation, so the other hand is free to grasp the sheet. The sheet may be used wet or dry as desired at the point of use.

A spray device and a method of using the spray device are provided. The spray device facilitates the application of a liquid such as a pretreatment liquid to an area of a fabric material. The spray device can be positioned on or adjacent portions of the fabric material and/or a substrate supporting the fabric material. The spray device can be activated to spray the pretreatment liquid and move the spray device on portions of the fabric material and/or the substrate supporting the fabric material.

A system for applying a lavage fluid to a surface, the system having a body configured to house a lavage fluid and at least two interchangeable application members configured to be in fluid communication with the body, wherein the at least two interchangeable application members includes a first application member and a second application member, the first application member being configured to dispense the lavage fluid with a first fluid flow force and/or first fluid flow pattern, and the second application member being configured to dispense the lavage fluid with a second fluid flow force and/or second fluid flow pattern that is different from the first fluid flow force and/or fluid flow pattern, respectively.

A liquid coating apparatus includes a liquid chamber, a diaphragm deformable to change a volume of the liquid chamber, a piezoelectric element that deforms the diaphragm in a thickness direction, a pressurized casing bottom-wall portion between the piezoelectric element and the diaphragm to support the piezoelectric element from a diaphragm side, a fixed casing bottom wall portion that supports an end of the piezoelectric element on a side opposite to the diaphragm, a plunger that extends through the pressurized casing bottom-wall portion and transmits expansion and contraction of the piezoelectric element to the diaphragm, and a coil spring that is between the piezoelectric element and the pressurized casing bottom-wall portion and is supported by the first support portion to apply a compressive force to the piezoelectric element.

Various embodiments of the present disclosure are directed to an Unmanned Aerial System (UAS) for applying a liquid to a surface. According to various embodiments, the UAS includes an Unmanned Aerial Vehicle (UAV) including flight control mechanisms. The UAV is configured to receive first control signals and to adjust an operational configuration of the flight control mechanisms in response to the first control signals. The UAS further includes a delivery assembly coupled to the UAV, where the delivery assembly is configured to receive second control signals and to apply the liquid to the surface located proximately to the UAV in response to the second control signals. The UAS further includes a control unit coupled to the UAV and the delivery assembly, the control unit configured to transmit the first and second control signals to the UAV and the delivery assembly, respectively.

Disclosed is a gas distributor, including: a nozzle unit formed by joining a pair of nozzle members together such that the nozzle members face each other with a first nozzle gap defined between the nozzle members; and a nozzle assembly in which at least two nozzle units are assembled together in parallel, in which the nozzle gap includes a first flow path formed in parallel in a direction of the nozzle member, and a second flow path extended from the first flow path, formed with a smaller width than a width of the first flow path along a bonded surface, and discharging gas through an end portion of one side of the second flow path, and the second flow path is extended with the first flow path, and is inclinedly provided so that a width is gradually decreased in a portion adjacent to the first flow path.

A high pressure cleaner with adjustable flow and/or pressure. A controller (CTL) serves to receive a wireless control signal (WCS) from a remote control unit (RCU), e.g. integrated in the spray handle (SH), in response to an input from a user. The controller (CTL) controls the high pressure module (HPM), e.g. electric power to its electric motor, so as to adjust a flow and/or pressure level at the liquid output (L_O) of the high pressure module (HPM) in accordance with the wireless control signal (WCS), between a plurality of different flow and/or pressure levels in an active state of the high pressure module (HPM). Further, the controller may be arranged to switch off electric power to the motor of the high pressure module (HPM) and/or activate a safety valve in response to a wireless control signal (WCS). The user interface (U_I) that allows the user to enter the desired flow and/or pressure level, may further visualize the flow and/or pressure level to the user.

An effective implementation is shown for a height adjustment system for a plurality of spray guns used in a line striper.

Embodiments of the invention are directed to an outdoor paint sprayer having an air pump chamber separate from a refillable and/or replaceable paint chamber. In some aspects, the outdoor paint sprayer is configured to dispense a liquid paint with minimal dilution, such that a paint having an original concentration may be aspirated and dispersed by the outdoor paint sprayer without requiring additional manipulation of the paint outside of the sprayer. In some aspects, the outdoor paint sprayer includes one or more nozzle features and/or tips that produce a desired spraying application. In further aspects, additional features for emulating a particular marking effect may be incorporated with and/or coupled to the sprayer for application.

A high pressure capable fluid sprayer includes a piston pump, a main pump housing, and a spray tip. The piston pump has a piston disposed to pump a fluid. The spray tip has an outlet aperture configured to atomize and spray the fluid. The main pump housing is formed of compliant plastic and rated for at least 1600 psi, defines a main pump chamber surrounding the piston, and is disposed to receive fluid from a fluid source.