Abstract: Techniques for determining and monitoring traffic and activity in enclosed spaces disclosed herein. The techniques described herein may use a plurality of sensors, installed at random locations and/or positions in the enclosed space, to detect one or more persons in a radius of interest of each sensor. Additionally, other appliances, such as plumbing fixtures, may be used to detect whether a user is present. The plurality of sensors and other appliance-based sensors may form a mesh network. By creating a mesh network, each of the sensors may learn its relative position to other sensors and other appliances. After a threshold number of user events, the system may able to report levels of activity of the enclosed space, such as identifying and predicting load, traffic, occupancy of stalls/fixtures, wait times, dirty/neglected fixtures and level of consumables, etc. In some instances. The system may comprise display the levels of activity via a billboard and/or a dashboard.

Abstract: A flushometer including a sanitation unit is described herein. The sanitation unit may be configured to emit ultraviolet light in response to the flushometer effectuating a flush of the fixture. The ultraviolet light may sterilize and/or sanitize a plume caused as a result of the flush. The ultraviolet light may be emitted for a predetermined amount of time to sterilize, sanitize, and/or kill any pathogens contained in the plume. Additionally or alternatively, the sanitation unit may emit the ultraviolet light periodically. For example, the sanitation unit may emit the ultraviolet light in response to receiving one or more signals from a gateway and/or server. The sanitation unit may provide an environmentally friendly solution that reduces water consumption and/or cleans, sanitizes, and/or sterilizes plumbing fixtures, toilet seats, etc. between uses without the need for harsh chemicals and/or cleaning solutions.

Abstract: A battery-free flushometer includes a combination of a power generation system, a power storage system, and/or a power management system to enable the flushometer to operate without the need for connection to an external power source, changing spent batteries, or recharging spent batteries using an external power source, as well as structures supporting this functionality. The flushometer may include a valve assembly. The power generation system may include a hydraulic turbine assembly positioned downstream of the valve assembly and configured to generate power using the water discharged through the outlet, and/or a photovoltaic cell configured to generate electrical power by converting light energy to the electrical power. The power storage system is electrically connected to the power generation system and includes a power storage device to receive and store electrical power generated by the power generation system. The stored electrical power can be used to actuate the valve assembly.

Abstract: A system for detection of water in a conduit includes a casing attached to the conduit on an exterior of the conduit, a sensor assembly supported by the casing and configured to sense a presence of water within the conduit, and an electronic component contained within the casing. The sensor assembly includes a first probe and a second probe, each having a probe contact accessible within the casing and extending into an interior of the conduit to be exposed in the interior of the conduit. The first probe and the second probe are spaced from each other and electrically isolated from each other. The electronic component is connected to the first probe contact and the second probe contact to place the electronic component in electronic communication with the first probe and the second probe. The conduit may be a vacuum breaker tube positioned between a valve and a plumbing fixture.

Abstract: A light ring assembly for a bathroom fixture. The light ring may illuminate one or more light sources in a predetermined sequence and/or in an overlapping manner to create a pulse of light that traverses the circumference of the light ring. Different patterns, colors, and/or sequences of light may be used to convey messages and signals to owners, maintenance, and/or users.

Abstract: The present disclosure describes a system that monitors an alkaline battery pack to detect low voltage batteries before the low voltage batteries can leak. Battery packs may comprise an even number of batteries, operating in series. The system monitors a voltage over each pair of batteries in a battery pack. For example, a first voltage (V1) may be measured between a first battery and a second battery. The first voltage may be measured between ground and the middle of the battery pack. The second voltage (V2) may be measured between a third battery and a fourth battery (i.e., between the middle of the pack and the terminal). The system then estimates the lowest battery voltage (Vtest) by subtracting the higher voltage divided by two from the lower voltage. The resultant voltage (Vtest) is then compared to a threshold voltage (e.g., between 0.85-1.2 volts). If the resultant voltage (Vtest) is greater than the threshold voltage, then the device is allowed to continue operating.

Abstract: A hand washing station includes a basin assembly having a rear configured for mounting to a wall surface and a front opposite the rear. The basin assembly includes a basin having a trough positioned proximate to the rear of the basin assembly and recessed from an adjacent surface of the basin located forward of the trough, with the trough having a front wall extending downward from the adjacent surface and a bottom wall extending rearward from the front wall. The basin assembly also includes a drain within the trough, formed by a slot extending through the front wall. A drain adapter is mounted on the trough below the basin and includes a passage in communication with the drain and extending through the drain adapter to an outlet for connection to a drain pipe, where the drain adapter receives water exiting the drain and outputs the water to the drain pipe.

Abstract: A hand washing station may include a basin assembly having a basin with a drain and a rear wall at a rear of the basin and extending upward from a bottom to a top of the basin, and at least one spout for a water dispenser, a soap dispenser, and/or a hand dryer. The spout(s) may be fixed to the rear wall and extend from the rear wall, and may use a combination of fixed and removable fasteners for such fixing. The basin assembly may also include a flange extending rearwardly at the top of the rear wall for mounting to a top of a pony wall. The station may be configured to install in a variety of different positions and configurations, such as in a pony wall configuration or with a cabinet located below the basin. A drain adapter may also be provided to aid with compact installation.

Abstract: A light ring assembly for a bathroom fixture. The light ring may illuminate one or more light sources in a predetermined sequence and/or in an overlapping manner to create a pulse of light that traverses the circumference of the light ring. Different patterns, colors, and/or sequences of light may be used to convey messages and signals to owners, maintenance, and/or users.

Abstract: A light ring assembly for a bathroom fixture. The light ring may illuminate one or more light sources in a predetermined sequence and/or in an overlapping manner to create a pulse of light that traverses the circumference of the light ring. Different patterns, colors, and/or sequences of light may be used to convey messages and signals to owners, maintenance, and/or users.

Abstract: A light ring assembly for a bathroom fixture. The light ring may illuminate one or more light sources in a predetermined sequence and/or in an overlapping manner to create a pulse of light that traverses the circumference of the light ring. Different patterns, colors, and/or sequences of light may be used to convey messages and signals to owners, maintenance, and/or users.

Abstract: An apparatus includes a conical body defining a chamber configured to contain a liquid and having a nozzle located a front end of the conical body and configured to discharge a stream of the liquid, a rear wall positioned at a rear of the conical body and at least partially defining the chamber, an inlet in communication with the chamber for introducing the liquid into the chamber, an acoustic transducer positioned at the rear wall, the acoustic transducer configured to generate acoustic energy and to introduce the acoustic energy into the liquid contained in the chamber, and an exhaust system including a vent in communication with the chamber to remove a mixture of liquid and gas bubbles from the chamber, an exhaust leading away from the vent, and an outlet in communication with the exhaust and configured to discharge the liquid and gas bubbles into or adjacent to the stream.

Abstract: An automatic faucet includes a housing forming partially an internal barrel and a faucet head and being constructed to include at least one water inlet conduit extending into said barrel and a water outlet for delivering water from a spout. The automatic faucet also includes a faucet head having a removable faucet crown and the spout, wherein the faucet crown is removably mounted to the faucet head. The automatic faucet also includes a valve module, a sensor module, a battery module, a turbine module, and a control module. The valve module includes a valve controlled by an electromagnetic actuator for controlling the water flow from the spout. The sensor module is constructed to provide sensor data influenced by a user. The control module is constructed to control opening and closing of the valve by providing signals to the electromagnetic actuator. The control module is also constructed to receive sensor data from the sensor module and execute a sensing algorithm.

Abstract: A flush actuator for engaging a flush valve. The flush actuator provides a mechanism assembly for automatically flushing the flush valve. A sensor provides a presence detection to trigger the automatic flushing. Redundant manual activation is provided.

Abstract: An optical system includes one or several passive optical detectors sensitive to ambient (room) light for controlling, for example, the operation of automatic faucets or automatic bathroom flushers. The passive optical sensors provide signals to flow controllers, including control electronics and flow valves and require only very small amounts of electrical power for sensing users of bathroom facilities, and thus enable battery operation for many years. To control the operation of automatic faucets or automatic bathroom flushers based on ambient light, the controller executes novel algorithms.

Abstract: A water delivery system includes a water input port, a control circuit, and a valve device. The water input port is constructed to be coupled to a water conduit receiving water from a remotely located water source. The valve device includes an actuator located near and connected to the water input port; wherein the valve device is constructed to receive control signals from the controller for providing water to a water delivery unit. The controller may be battery operated. The actuator may be a latching actuator, a non-latching actuator, or an isolated latching actuator. The controller may include a microcontroller coupled and to a sensor. The system may include a communication interface constructed and arranged to provide data to the microcontroller. The control circuit may include a power consumption controller. The control circuit includes a voltage regulator.

Abstract: A flush actuator for engaging a flush valve. The flush actuator provides a mechanism assembly for automatically flushing the flush valve. A sensor provides a presence detection to trigger the automatic flushing. Redundant manual activation is provided.

Abstract: An automatic faucet includes a housing constructed to receive at least one water inlet conduit and having a spout for delivering water. The automatic faucet includes a valve module, a sensor module, a battery module, a turbine module, and a control module. The valve module includes a valve controlled by an electromagnetic actuator for controlling the water flow from the spout. The sensor module is constructed to provide sensor data influenced by a user. The control module is constructed to control opening and closing of the valve by providing signals to the electromagnetic actuator. The control module is also constructed to receive sensor data from the sensor module and execute a sensing algorithm. The control module is also constructed to execute a power management algorithm for managing electrical power generated by the water turbine and provided to and from the battery.

Abstract: A flush actuator for engaging a flush valve. The flush actuator provides a mechanism assembly for automatically flushing the flush valve. A sensor provides a presence detection to trigger the automatic flushing. Redundant manual activation is provided.

Abstract: A bathroom flusher includes a flusher body, a valve assembly, an electronic control system, and a flusher cover. The flusher body includes an inlet and an outlet, and is designed to accommodate the valve assembly that controls water flow between the inlet and the outlet. The valve assembly includes a valve member movable with respect to a valve seat providing a sealing action based on applied pressure on the valve assembly. The bathroom flusher also includes an external cover designed for enclosing an electronic control module comprising a battery, a sensor, and an actuator for controlling operation of the flush valve, wherein the external cover includes at least two cover parts separately removable, and wherein the external cover is attachable with respect to the valve body in a manner also allowing removable attachment of the control module.