Operating a hand cleaner dispenser for dispensing a cleaning liquid from a reservoir onto a person's hands in a cycle of operation wherein, during a first time interval during the cycle dispensing the liquid onto the hand as a spray, and during a second time interval during the cycle dispensing the liquid onto the hand as a liquid stream.

An applicator having a housing and a nozzle is described, the nozzle being convertible from a first geometric shape to a different second geometric shape by an operator snapping the exterior tip off the nozzle, thereby exposing an interior tip.

An in-situ foam generation apparatus includes a dissolution chamber that houses a polymer stick cavity or canister, a mixing chamber that houses a static mixer, and a foaming chamber that houses a mechanical agitator in fluid communication with a compressed air inlet. The chambers are in fluid communication with one another by way of a respective chamber inlet and outlet, with the mixing chamber being located between the dissolution and foaming chambers. A pressure regulator can be used to control the incoming aqueous solution pressure to the dissolution chamber. A nozzle exhaust is in fluid communication with the outlet of the foaming chamber. One or more polymer sticks that include one or more cleaning agent can be loaded into the cavity or canister of the dissolution chamber. An end consistency of the polymer stick can be in a range of partially solidified to fully solidified.

A foam output device, such as a dispenser, a gun, a turreted cannon, a hose adapter, an aerosol can, or others. The foam output device includes a valve configured to switch between a first mode and a second mode. The valve is configured to simultaneously receive a plurality of compositions and a fluid during the first mode such that the compositions and the fluid are able to react with each other within the valve to form a foam thereby. The valve is configured to prevent the compositions and the fluid from reacting with each other in the valve during the second mode.

An apparatus or method for generating a microfoam, the apparatus comprising a channel having an inlet and an outlet, a source of foamable liquid and pressurised gas arranged to feed into the inlet, wherein the channel is comprised of a spatially oscillating flow channel to provide an oscillating flow direction, the spatially oscillating flow channel oscillating about a bulk flow direction, the spatially oscillating flow channel providing a sequence of planar cross-sections perpendicular to the flow direction, with a sub-sequence of planar cross-sections that are perpendicular to the bulk flow direction in the plane in question, the sub-sequence comprising at least one plane that does not overlap with at least one other plane in the sub-sequence.

An injection port for a spray gun includes a first end and a second end disposed opposite the first end along a longitudinal axis. The injection port also includes an interior passage extending between the first end and the second end along the longitudinal axis, and a plurality of blind bores disposed at the first end, each blind bore extending perpendicular to the longitudinal axis.

According to the present invention, there is provided a foaming apparatus that discharges a foamable material obtained by mixing gas into a viscous material of a resin and dispersing bubbles in a liquid of the viscous material. The foaming apparatus includes: a pipe; a material supply unit; a gas supply unit; a first gear pump; a second gear pump; a third gear pump; a mixer; a discharge unit; and a control unit.

A foam spray can includes a motor pump, a foaming tube, a can body, a cover body and a quick release structure. One end of the foaming tube is connected to the motor pump. The can body contains liquid. The cover covers an opening of the can body. The quick release structure includes a first and a second engaging structures disposed on the cover body and the can body, respectively. The first engaging structure can be engaged with the second engaging structure along a first direction. The first engaging structure can be separated from the second engaging structure in a moving distance less than a half circumference of the opening of the can body along a second direction opposite to the first direction. Therefore, the cover body and the cover body of the foam spray can be quickly assembled and disassembled.

A foam generating device includes a housing defining an agitation chamber and a conditioning chamber. A cartridge assembly arranged within the agitation chamber defines an agitation flow path of the solution to increase a quantity of a gas in the solution. A conditioning assembly arranged within the conditioning chamber defines a tortuous flow path for the solution including a plurality of cylindrical discs configured to sequentially receive the solution. Each of the discs defines a plurality of radial ribs on a first side and on a second side opposite the first side, the first and second sides separated by a floor, and a disc passage defined in the floor. The conditioning assembly is adjustable in order to selectively define the tortuous flow path with a first quantity of radial ribs and second quantity of radial ribs in order to alter the aeration of the solution along the tortuous path.

A nozzle assembly includes a mixing channel and an aerator. The mixing channel has upstream and downstream ends defining a flow direction through the mixing channel and includes a housing wall and a mixer. The housing wall defines a flow passage and includes an inlet portion and a tip orifice. The inlet portion disposed at the upstream end and configured to receive a first material and a second material. The tip orifice is disposed at the downstream end and is configured to emit a plural component material from the mixing channel. The mixer is disposed within the mixing channel and is configured to mix the first material and the second material into the plural component material. The aerator is configured to flow nucleation air to a location downstream of an upstream end of the mixer and into a flow of the plural component material.