A vessel includes a body having an interior surface that defines an interior space. The vessel further includes a flexible membrane located within the interior space of the vessel. The flexible membrane divides the interior space of the vessel into a first chamber and a second chamber. A valve configured to provide selective fluid communication between the first chamber and an exterior of the vessel. The vessel further includes one or more ribs protruding from at least a portion of the interior surface within the first chamber. The one or more ribs create one or more flowpaths configured to allow flow of a contents of the vessel from the first chamber towards an opening of the valve when the flexible membrane is in contact with the one or more ribs. The flexible membrane can include a ribbed structure extending from a surface of the flexible membrane.

A fluid reservoir includes a reservoir body, a heating structure, a piston, and an outlet port. The reservoir body includes a cross section, and a translation axis. The cross section is uniform along the translation axis. When fluid is housed in the reservoir, the heating structure is thermally coupled to the fluid. The heating structure energizes the fluid housed in the reservoir. The piston translates along the translation axis. An available volume of the reservoir to house the fluid is defined by a distance between the piston and an end of the reservoir body. When the piston is translated along the translation axis toward the end, a volume of the fluid that has been energized by the heating structure flows from the reservoir and through the outlet port. The volume of energized fluid is linearly proportional to a length of the translation of the piston.

The subject matter discloses a faucet inserted into a paint port of a painting apparatus to control flow of paint removed from the painting apparatus, the faucet comprising an external mold rotatably insertable into a paint port of a painting apparatus; wherein said external mold is spiral; an internal mold insertable into the external mold; a faucet valve to control flow of paint from the paint apparatus.

A dispenser includes a housing, an aperture within the housing, a receptacle within the housing, and a pneumatically driven actuator. The receptacle removably receives a reservoir, such that when the reservoir is received by the receptacle, an outlet port of the reservoir is exposed through the aperture. When the pneumatically driven actuator is actuated, the pneumatically driven actuator provides a dispensing force that induces a flow of a predetermined volume of fluid within the reservoir through the exposed outlet port of the reservoir and dispenses the predetermined volume through the aperture. In some embodiments, the dispenser includes an internal pneumatic source. The internal pneumatic source may include an air compressor. The dispenser may include a pneumatic input port that receives a pneumatic hose. The dispensing force translates a piston in the reservoir a predetermined distance. The predetermined distance may be linearly proportional to the predetermined volume of dispensed fluid.

Various embodiments provide a bicycle hydration and misting system or apparatus. Example embodiments include a manual (e.g., trigger-activated) or automated (e.g., valve-activated) system that is self-contained, small, and light-weight. Various embodiments improve safety, allow convenient interchangeability of the fluid reservoir, and enable easy installation on a bicycle with or without a mounting system on the bicycle itself. Embodiments also allow the rider to select a variety of spray types, stream, spray, or mist depending on the intended use or amount of fluid desired for each release. The various embodiments provide for an improved cooling fluid delivery system of design simplicity, ease of use, and interchangeability that allows a cyclist an evaporative cooling concept safely, efficiently and conveniently, while riding in conditions of elevated or extreme temperatures.

A material cartridge arrangement (100, 101) for a dispensing system, comprising a material cartridge (2) having a first end (2a), an opposing second end (2b) and an ink material channel (5) extending between the first and second ends in the material cartridge (2), the ink material channel (5) being bounded by an ink material channel wall/walls (9) extending between the first (2a) and second ends (2b). An ink material pressurising device (3) is arranged to cause ink material hold in the ink material channel (5) to flow in a direction from said first end (2a) towards said second end (2b) and through an ink material outlet. At least one temperature sensing element (16) is arranged at a position along the direction of extension of the ink material channel (5) and arranged to measure a temperature at the ink material channel wall (9).

A system for micro spray backpacks is a reusable device which has at least one cartridge that contains at least one agrochemical element or another type of concentrate which is to be dispensed separately from the dilution, performing this task at the very moment at which its application is required. The device contemplates the adjustment in the concentration of the mix, as well as the change of the cartridges without spilling the solvent contained in the tank of the backpack. The cartridge prevents oxidation of the concentrate which is to be applied due to its being isolated, reducing economic and environmental costs. The device is designed for use in agricultural and industrial sectors.

Fluid delivery devices and methods are described, where the device may comprise a piezoelectric actuator operatively coupled to an ampoule with fluid, under a preloading force. The ampoule may comprise a thin-walled thermoplastic package which includes one or more apertures positioned on the wall of the ampoule. The piezoelectric actuator may be configured to clamp at least partially around the circumference of the ampoule and apply oscillations to its wall. The oscillations, typically in ultrasonic frequency, produce cycles of acoustic pressure in the fluid, leading to ejection of the fluid droplets or streams from the apertures.

A spray gun cup receptacle is disclosed comprising an open end for receiving a liner within a cavity and a base end opposite the open end. The base end is positionable with respect to a work surface with the open end facing upwards such that a base plane passing through the base end is parallel to the work surface. A sidewall surrounds the cavity and connects the open end to the base end. The sidewall comprises two apertures through which the cavity is visible from outside the spray gun cup receptacle. The two apertures are divided one above the other by a brace member, at least a portion of which is disposed at a brace member angle relative to the base plane.

According to a first aspect of the disclosure, a spray device is provided for generating an aerosol. The spray device comprises a reservoir for containing a store of a liquid; a delivery chamber for containing a dose of the liquid received from the reservoir prior to ejection; a perforate element comprising one or more nozzles; a drive mechanism configured to drive liquid from the delivery chamber through the one or more nozzles; and a fluid metering system. The fluid metering system comprises an actuated valve that is actuatable between a closed position and an open position. The opening and closing of the actuated valve can be sequenced to control the flow of fluid from the reservoir to the delivery chamber.