Abstract: A misting device has a form factor that allows the device to be handheld. The device includes a fluid tank that can be pressurized to force the contained fluid under pressure through a fluid delivery system. A hand-operated pump injects air into the fluid tank to pressurize the fluid tank. The pump includes a pump handle located at the bottom of the tank at one end of a rod, and a piston at the other end of the rod. A pressure-relieving air channel extends through the piston, the rod, and the pump handle to emit air out of the pump and into the environment when the fluid tank is at a maximum pressure.

Abstract: A misting device has a form factor that allows the device to be handheld. The device includes a fluid tank that can be pressurized to force the contained fluid under pressure through a fluid delivery system. A hand-operated pump injects air into the fluid tank to pressurize the fluid tank. The pump includes a pump handle located at the bottom of the tank at one end of a rod, and a piston at the other end of the rod. A pressure-relieving air channel extends through the piston, the rod, and the pump handle to emit air out of the pump and into the environment when the fluid tank is at a maximum pressure. A pressure relief valve is disposed inside the piston to control the flow of air through the air channel. The pump handle locks against the tank using a “twist-and-lock” mechanism to remain secured in a retracted position.

Abstract: A nozzle for atomizing a fluid is particularly suited for misting systems and generates a mist without any moving parts. The nozzle may be completely plastic for corrosion resistance, and may have a body cast as a unitary plastic article. The body may have a substantially cylindrical neck and a head integral with the neck and having a cavity that receives an atomizing insert. An occluder integral with the head may extend into the cavity such that the insert fits over the occluder and leaves a gap between the insert and the occluder. A fluid conduit disposed through the center of the neck may deliver fluid to the cavity. The fluid conduit may narrow at it approaches the cavity to increase fluid pressure in the head. One or more apertures from the fluid conduit into the cavity may be narrower than the fluid conduit to again increase fluid pressure.

Abstract: A misting apparatus that is more durable and leaks less than systems known in the art. The apparatus includes a durable, integral flow control assembly and handle, which are especially beneficial for portable misting systems. The apparatus further includes a pressure gauge for monitoring the pressure inside the tank.

Abstract: The fan propelled misting apparatus for cooling an extended area by evaporative cooling includes a blower with a hollow, cylindrical mist discharge tube, and a fan for propelling air flow through the mist discharge tube; and a misting device connected to the blower for delivering a fine spray of water to the cylindrical mist discharge tube. The misting device includes a pressurizable fluid tank, such as a piston type pump, with a water supply tube connected between the pressurizable fluid tank and the mist discharge tube for delivering the fine spray of water to the cylindrical mist discharge tube. The water supply tube has a nozzle at a distal end of the water supply tube disposed in the mist discharge tube so as to deliver the fine spray of water in the air flow provided by the blower. A valve is provided for controlling flow of water through the water supply tube.