Abstract: A shower control system includes a controller in communication with a plurality of output devices located within a shower enclosure. The controller is configured to control the plurality of output devices. The shower control system further includes a control panel in communication with the controller and configured to provide a graphical user interface for controlling the plurality of output devices. The control panel includes an electronic display configured to present dynamic content, one or more static buttons, and a touch-sensitive panel overlaying both the electronic display and the one or more static buttons. The touch-sensitive panel is configured to detect a user interaction with both the one or more static buttons and the dynamic content presented via the electronic display.

Abstract: A shower control system includes a water subsystem, a steam subsystem, and a controller in communication with the water subsystem and the steam subsystem. The water subsystem includes one or more electronic valves configured to control a flow rate and a temperature of water dispensed from one or more shower outlets within a shower enclosure. The steam subsystem is configured to generate and dispense steam from one or more steam outlets within the shower enclosure. The controller is configured to control the water subsystem and the steam subsystem to provide a spa experience including a predetermined and coordinated sequence of water outputs from the shower outlets and steam outputs from the steam outlets.

Abstract: A shower control system includes a water subsystem, a steam subsystem, and a controller in communication with the water subsystem and the steam subsystem. The water subsystem includes one or more electronic valves configured to control a flow rate and a temperature of water dispensed from one or more shower outlets within a shower enclosure. The steam subsystem is configured to generate and dispense steam from one or more steam outlets within the shower enclosure. The controller is configured to control the water subsystem and the steam subsystem to provide a spa experience including a predetermined and coordinated sequence of water outputs from the shower outlets and steam outputs from the steam outlets.

Abstract: A shower control system includes a controller in communication with a plurality of output devices located within a shower enclosure. The controller is configured to control the plurality of output devices. The shower control system further includes a control panel in communication with the controller and configured to provide a graphical user interface for controlling the plurality of output devices. The control panel includes an electronic display configured to present dynamic content, one or more static buttons, and a touch-sensitive panel overlaying both the electronic display and the one or more static buttons. The touch-sensitive panel is configured to detect a user interaction with both the one or more static buttons and the dynamic content presented via the electronic display.

Abstract: A mechanically actuated electronically controlled unit injector includes an electronically controlled spill valve to precisely control timing of fuel pressurization within a fuel pressurization chamber. Cavitation bubbles may be generated in the region of the valve seat when the spill valve member is closed to raise fuel pressure in the fuel injector. This cavitation can cause erosion on the spill valve member and the surrounding injector body. In order to preempt cavitation damage, the valve member may be modified to include a compound annulus that includes a small annulus that corresponds to an identified cavitation damage pattern. Although the generation of cavitation bubbles may continue after such a strategy, cavitation erosion, and the associated liberation of metallic particles into the fuel system can be reduced, and maybe eliminated, by the preemptive cavitation reduction strategy.

Abstract: A mechanically actuated electronically controlled unit injector includes an electronically controlled spill valve to precisely control timing of fuel pressurization within a fuel pressurization chamber. Cavitation bubbles may be generated in the region of the valve seat when the spill valve member is closed to raise fuel pressure in the fuel injector. This cavitation can cause erosion on the spill valve member and the surrounding injector body. In order to preempt cavitation damage, the valve member may be modified to include a compound annulus that includes a small annulus that corresponds to an identified cavitation damage pattern. Although the generation of cavitation bubbles may continue after such a strategy, cavitation erosion, and the associated liberation of metallic particles into the fuel system can be reduced, and maybe eliminated, by the preemptive cavitation reduction strategy.

Abstract: A plumbing fixture includes a receptacle for receiving waste, a tank for storing water, and an electrically operated pump that conveys water from the tank into the receptacle to flush the waste through a drain. The duration that the pump in operated to flush the waste is altered in response to variation of the electrical voltage supplied to the plumbing fixture. The pump is operated to decrease the amount of water in the tank when that amount is sensed to be excessive. Further operation of the pump is inhibited for a given interval to avoid overheating when the pump has been operating too frequently. The pump is cycled on and off in predefined patterns to indicate different malfunctions to a user.

Abstract: A dual temperature valve positioned in a bypass passageway can move to an open position when two temperature conditions are met. When opened, the dual temperature valve can allow warm fluid from a first line to mix with cold fluid from a second line to heat the same. The valve is preferably utilized in an engine fuel system and positioned in a bypass passageway extending between a fuel supply line and a fuel return line. In this application, the dual temperature valve can prevent possible fuel transfer problems, such as cold start gaseous circulation.

Abstract: A dual temperature valve positioned in a bypass passageway can move to an open position when two temperature conditions are met. When opened, the dual temperature valve can allow warm fluid from a first line to mix with cold fluid from a second line to heat the same. The valve is preferably utilized in an engine fuel system and positioned in a bypass passageway extending between a fuel supply line and a fuel return line. In this application, the dual temperature valve can prevent possible fuel transfer problems, such as cold start gaseous circulation.

Abstract: A method for removing solid wastes from an organic extractant-based SX/EW copper processing system. A lixivant is initially applied to copper ore, followed by mixing of the copper-containing lixivant product with an organic extractant. The organic extractant (which contains extracted copper ions) is then contacted with an electrolyte solution. At least part of the remaining organic fraction after electrolyte contact is passed through a filtration membrane (either an ultrafiltration or microfiltration membrane) to remove solid wastes. The filtered organic fraction is then reused within the system, followed by electrowinning of the copper-containing electrolyte to recover purified copper. Alternatively, the organic extractant may be membrane-filtered after initial contact with the copper-containing lixivant product to remove solid wastes from the organic extractant.

Abstract: A method for separating gold from copper in a gold ore processing system. Gold ore containing elemental gold and elemental copper is treated with an aqueous cyanide solution to produce a liquid product containing a gold-cyanide complex and a copper-cyanide complex. The liquid product is then delivered to a nanofiltration membrane which prevents the copper-cyanide complex from passing therethrough while allowing passage of the gold-cyanide complex. Nanofiltration of the liquid product specifically produces (1) a retentate which contains the copper-cyanide complex; and (2) a permeate which contains the gold-cyanide complex. In this manner, the gold-cyanide complex is effectively separated from the copper-cyanide complex. The permeate is then treated (e.g. with activated carbon or elemental zinc) to ultimately obtain elemental gold therefrom. The copper-cyanide complex may either be discarded or treated to recover elemental copper from the complex.

Abstract: A method for removing solid wastes from an organic extractant-based SX/EW copper processing system. A lixivant is initially applied to copper ore, followed by mixing of the copper-containing lixivant product with an organic extractant. The organic extractant (which contains extracted copper ions) is then contacted with an electrolyte solution. At least part of the remaining organic fraction after electrolyte contact is passed through a filtration membrane (either an ultrafiltration or microfiltration membrane) to remove solid wastes. The filtered organic fraction is then reused within the system, followed by electrowinning of the copper-containing electrolyte to recover purified copper. Alternatively, the organic extractant may be membrane-filtered after initial contact with the copper-containing lixivant product to remove solid wastes from the organic extractant.