Abstract: A pump including an inlet one-way valve; a pump chamber downstream of and in fluid communication with the inlet one-way valve; a piston slideably engaged with the pump chamber; a piston cavity within the piston and in fluid communication with the pump chamber; a liquid accumulator operable within the piston cavity; an actuator engaged with piston; and an outlet one-way valve downstream of and in fluid communication with the pump chamber.

Abstract: A spray product is provided. The spray product includes a composition contained within a reservoir. The composition has a yield stress greater than zero and less than 1,000 mPa as determined by the RHEOLOGY TEST METHOD. The spray product includes a valve in composition communication with the reservoir; an actuator in mechanical communication with the valve; a nozzle having an outlet orifice; a swirl chamber in composition communication with the outlet orifice; and a plurality of swirl chamber swirl chamber inlet channels in composition communication with the swirl chamber. The outlet orifice is defined by an outlet orifice diameter and an outlet orifice axial length. A ratio of the outlet orifice diameter to the axial length is from about 1.3 to about 3.5.

Abstract: A pump including an inlet one-way valve; a pump chamber downstream of and in fluid communication with the inlet one-way valve; a piston slideably engaged with the pump chamber; a piston cavity within the piston and in fluid communication with the pump chamber; a liquid accumulator operable within the piston cavity; an actuator engaged with piston; and an outlet one-way valve downstream of and in fluid communication with the pump chamber.

Abstract: Examples include a consumer product comprising a detergent product and a container, the container comprising a data processing apparatus. The container comprises a first chamber defining a first volume, the first chamber containing the detergent product, the first chamber being accessible through an opening. A lock permits opening or closing of the first chamber. A data processing apparatus comprises a processor, a power source connected to the processor, a sensor connected to the processor and a memory connected to the processor, the sensor being configured to sense the opening or closing of the first chamber by the lock to produce output lock data, the processor being configured to receive the lock data from the sensor.

Abstract: A pump including an inlet one-way valve; a pump chamber downstream of and in fluid communication with the inlet one-way valve; a piston slideably engaged with the pump chamber; a piston cavity within the piston and in fluid communication with the pump chamber; a liquid accumulator operable within the piston cavity; an actuator engaged with piston; and an outlet one-way valve downstream of and in fluid communication with the pump chamber.