Abstract: A device for spraying an inner surface of a toilet bowl with a cleaning fluid is disclosed. The device includes a container for the fluid, a fluid sprayer through which the fluid can be sprayed on the inner surface of the wall of the enclosure, a pumping apparatus for delivering fluid from the container to the fluid sprayer, a sensor for detecting the presence of an object near the fluid sprayer, and a controller. The controller executes a stored program that activates the sensor at a beginning time of a time interval before a scheduled spraying time stored in the controller, monitors electrical signals from the sensor during the time interval to determine if an object is near the fluid sprayer, and if the controller determines that an object has not been near the sensor during the time interval, activates the pumping apparatus for delivering fluid from the container to the fluid sprayer.

Abstract: A multiple nozzle differential fluid delivery head is disclosed. The fluid delivery head includes a body that defines a fluid chamber having a longitudinal axis. The body includes an inlet for connection to a fluid source, and the inlet is in fluid communication with the fluid chamber. The fluid delivery head includes a plurality of outlet ports connected to and extending away from the body. Each outlet port has an interior space in fluid communication with the fluid chamber. The fluid delivery head includes a nozzle insert removably secured in an outer end of each outlet port. At least one nozzle insert has a fluid delivery aperture in fluid communication with the interior space of its associated outlet port for delivering fluid out of the interior space of its associated outlet port. One or more of the outlet ports is angled away from a plane normal to the axis of the fluid delivery head.

Abstract: A rotary sprayer and method for spraying an inner surface of an enclosure, such as a toilet bowl, with a fluid are disclosed. The rotary sprayer includes a clip and a rotating nozzle. The clip includes a fluid inlet and an arm having a distal end section. The nozzle includes a circular deflection plate, and a pair of spaced apart walls extending away from a surface of the deflection plate. The walls define a channel on the surface of the deflection plate. A passageway is in fluid communication with the channel and an end space between the walls. The fluid inlet is positioned in the end space and a spindle of the nozzle is mounted to the distal end section of the arm. Fluid exiting the fluid inlet flows through the passageway and the channel and contacts an inner surface of at least one of the walls to rotate the nozzle and spray the inner surface wall of the enclosure with the fluid.