Abstract:
In a metering unit (10) having at least one outlet (20) for dispensing an aerosol with a defined concentration, with at least one inlet (180) for a carrier gas, at least one inlet for a liquid, preferably for a hydrogen peroxide solution, and a buffer container (30) for the liquid, it is provided that the metering unit (10) has at least one liquid flow controller (90) on the outflow side.
Abstract:
A venturi nozzle producing a stream of aerated water containing air-entrained bubbles. The stream of aerated water containing air-entrained bubbles may be directed onto a fire to extinguish the fire. Water entering the venturi nozzle may be mixed with a fluid substance, such as a foam-producing substance, gas, or powdered substance suspended in air, and the mixture may be ejected from the nozzle. Embodiments of the venturi nozzle including a fire-fighting nozzle, a sprinkler head, and an array of sprinklers are described.
Abstract:
A trigger sprayer includes a sprayer body having a barrel with an internal passage, and a nozzle mounted over an open end of the barrel for rotation between dispensing and non-dispensing positions. The nozzle has a plug that is received in the open end of the barrel passage. The plug has laterally opening windows positioned for selective registry with an internal axial slot in the wall of the barrel passage adjacent to the open end of the barrel. The windows in the plug connect with fluid outlets in the nozzle. The nozzle is rotatable around the end of the barrel selectively for bringing the windows into registry with the slot in the barrel to dispense fluid from the end of the nozzle.
Abstract:
A low pressure foaming nozzle assembly having a modular construction for permitting the ready interchange of nozzle tips. The foaming nozzle assembly may be constructed of two pieces, with a first configuration employing a flow body and an engaging nozzle tip and a second configuration employing a pair of mating halves, wherein each mating half includes a portion of a venturi, a throat and a nozzle tip. The assembly cooperatively engages a foaming liquid source such as a wand, and upon pressure on the foaming liquid source, a foam is generated.
Abstract:
A nozzle assembly including a nozzle member, a cap member, a spinner and a foam tube. The cap member is rotationally mounted on the nozzle member and may be rotated from an “off-position” to a “foam-position” with continued rotation bringing the cap member to a “spray-position” and then to a second “foam-position” and then to the “off-position.” Rotation of the cap member drives foam tube from a retracted position to an extended position extending forward of the nozzle member when the cap member is in the “foam-position.” The spinner rotates to atomize liquid flowing through the assembly.
Abstract:
A nozzle assembly for aerating a pressurized liquid stream to produce a discharge of foam includes a plurality of arcuate venturi throats in a circular arrangement around the center of the nozzle together with a radial air inlet to each throat which is adjustable by relative rotation of the inlet coupling and the venturi housing. Additional turbulence may be created by a screen downstream of the venturi throats and secondary air may be admitted at that point.
Abstract:
A nozzle assembly and method of forming an adjustable spray pattern nozzle assembly that is usable with pressure washing systems includes a first body and a second body that are positionally secured relative to one another. The first body includes a fixed shaped orifice that defines the exit of a fluid spray from the nozzle assembly. The second body is disposed upstream of the first body and includes a pressure dependent variable shape orifice. The second body is formed of a resilient material that allows flexure of the second body in response to pressure of the fluid flow. Flexure of the second body manipulates the shape of the variable shape orifice and thereby allows the nozzle assembly to provide various spray patterns without user manipulation of the nozzle assembly.
Abstract:
A foam assembly connectable to a liquid container includes a main pump body, a resiliently deformable piston dome, an air chamber, a liquid chamber, a mixing zone and a porous member. The main pump body has an exit nozzle with the porous member therein. The air chamber and the liquid chamber are each defined by the piston dome and the main pump body. The liquid chamber has a liquid inlet valve and a liquid outlet valve. The mixing zone is in flow communication with the air chamber and the liquid chamber. The volume of the air chamber and the liquid chamber are each dependent on the position of piston dome and during an activation stroke the piston moves from the at rest position to the depressed position and responsively the volume of the air chamber and the volume of the liquid chamber are reduced.
Abstract:
A piezoelectric foaming pump is provided herein. The piezoelectric foaming pump includes a housing having a first opening for receiving a liquid from a liquid container and a piezoelectric element secured to the housing. The piezoelectric element includes a plurality of holes there through. In addition, the housing includes an air inlet. Although the piezoelectric element has holes there through, prior to activating the piezoelectric element, liquid does not pass through the plurality of holes. When the piezoelectric element is energized, liquid passes through the plurality of holes due to the rapid vibration of the piezoelectric element and is dispensed as a foam. Additionally, a piezoelectric foaming pump having a fluid pump chamber; an air pump chamber; a mixing chamber; a piezoelectric element; and an outlet nozzle is disclosed herein. During operation, fluid pumped from the fluid chamber mixes with air pumped from an air chamber in the mixing chamber and the resulting mixture is passed through the piezoelectric element and dispensed out of a nozzle.
Abstract:
A pump dispenser imparting a trigger motion accurately to a piston and ensuring a stabilized motion of the piston. Under a state fixed to a container, the manual trigger pump dispenser A compresses liquid in a cylinder section (21) through a piston section (3) by moving a trigger structure (1) and ejects that liquid from a nozzle hole. A base body (2) is secured to the mouth of the container through a packing structure (4)and the cylinder section (21) is formed in the base body (2) in parallel with a bent cylinder section (22). The trigger structure (1) comprises a trigger section (12), a second valve case section (11) being fixed to the base body (2), and a trigger guide section (13) sliding in the bent cylinder section (22).