A method of filling a fluid dispenser is provided and a method for operating power driven pump in a dispenser is provided.

A liquid supply system for supplying liquid to one or more liquid dispensers is provided. The system comprises a water source for supply of water to the system; a concentrate reservoir for supply of concentrate to the system; and a liquid reservoir coupled to the water source and the concentrate reservoir, and configured to be coupled to one or more liquid dispensers. In use, the liquid reservoir is configured to supply liquid to the or each dispenser and is replenished via the water source and concentrate reservoir.

Portable sanitization fluid dispensing devices, systems including such devices, and methods for using such devices are described herein. Such devices, systems, and methods may assist in ensuring proper hand sanitization in sensitive environments, such as medical facilities, laboratories, food and drug preparation facilities, and the like. Devices and systems disclosed herein may be adaptive to, e.g., changing schedules, different users, and different environments.

A dispenser with a replaceable cartridge containing a product to be dispensed, and a housing configured to removably receive the cartridge. The cartridge has a surface that is marked with a first marking, and the housing has a surface that is marked with a second marking. The housing is configured so that, when the cartridge is received by the housing, the first marking and the second marking together form a machine readable code that is detectable from outside of the housing.

Exemplary soap, sanitizer and lotion dispensers are disclosed herein. An exemplary dispenser includes a housing; a receptacle for receiving a container; a container of fluid comprising soap, sanitizer or lotion; a pump in fluid communication with the container; a power source; a pump coupled to a motor and pulse width modulation circuitry in circuit communication with the power source and the motor. The pulse width modulation circuitry is initially set to cause a selected dose of fluid to be dispensed at a base speed. A sensor for detecting a parameter indicative of an actual speed of a dispense of the fluid is also included. When the actual speed of the dispense of fluid is less than the base speed or greater than the base speed, the pulse width modulation circuitry adjusts the pulse width to cause the speed of a following dispense of fluid to be closer to the base speed.

A fluid dispenser with a pump mechanism that dispenses fluid when activated. A light sensor detects light in or around the fluid dispenser, and a controller controls a function of an electronic component of the fluid dispenser based on detection data received from the light sensor.

Among other things, one or more systems and/or techniques for improving performance of a dispensing system are provided herein. The dispensing system may comprise an emitter and a detector. The emitter may be configured to transmit light (e.g., and/or one or more other signals). The detector may be configured to measure light, for example. The detector may determine a first measurement of light while the emitter is not transmitting light. The detector may determine a second measurement of light responsive to the emitter transmitting light. The detector may determine a third measurement of light based upon a comparison of the first measurement of light with the second measurement of light. The detector may be direct current (DC) coupled while determining the third measurement of light.

A method of determining the volume of fluid contained in a collapsible bottle, the collapsible bottle containing a fluid to be dispensed from a fluid dispenser. The fluid dispenser has a distance measuring sensor, and the collapsible bottle is coupled to the fluid dispenser so that a preselected surface of the collapsible bottle is positioned in a measurement path of the sensor. The fluid dispenser is activated to dispense an allotment of the fluid from the collapsible bottle, the collapsible bottle collapsing in a predictable manner as the fluid is dispensed from the collapsible bottle. The sensor is used to measure a distance between the sensor and the preselected surface of the collapsible bottle, the distance changing predictably as the collapsible bottle collapses. The volume of the fluid contained in the collapsible bottle is determined based on the distance between the sensor and the preselected surface of the collapsible bottle.

A fluid dispenser with a pump mechanism that dispenses fluid when activated. A light sensor detects light in or around the fluid dispenser, and a controller controls a function of an electronic component of the fluid dispenser based on detection data received from the light sensor.

A wearable fluid-dispensing apparatus includes a frame including a bottom wall, an upper wall, and a pair of lateral walls defining a receptacle, a cartridge removably attached to the frame within the receptacle of the frame, the cartridge having an interior reservoir, a fluid extraction port, and a fluid transfer conduit disposed within the interior reservoir of the cartridge. A housing located above the upper wall of the frame including an electric pump assembly in communication with the fluid transfer conduit of the cartridge. The electric pump assembly includes a rotatable nozzle disposed above a top end of the housing.