Abstract: A powered joint having a first joint component and second joint component in which the first joint component has multiple degrees of rotational freedom with respect to the second joint component, the powered joint including one or more power transmission coils associated with the first component; a plurality of power receiving coils associated with the second component; a sensor which determines the orientation of the second component with respect to the first component; and a control circuit for selectively connecting one of the plurality of power receiving coils to a power receiving circuit based on information received from the sensor.

Abstract: A powered joint having a first joint component and second joint component in which the first joint component has multiple degrees of rotational freedom with respect to the second joint component, the powered joint including one or more power transmission coils associated with the first component; a plurality of power receiving coils associated with the second component; a sensor which determines the orientation of the second component with respect to the first component; and a control circuit for selectively connecting one of the plurality of power receiving coils to a power receiving circuit based on information received from the sensor.

Abstract: An appliance having the capability to assist in retarding a fire external to the appliance. One or more nozzle may be incorporated within the appliance or provided externally to provide a fluid mist. The main appliance pump or a separate pump may provide pressurised fluid to the one or more nozzles or a pressurised supply to the appliance may be used directly. A control circuit for controlling one or more pumps and or valves may be incorporated in the main appliance control circuitry or provided separately. One or more fire detection sensors may be provided within or external to the appliance and may communicate with the control circuit via a wireless signal, over power lines, via a sound signal or over communication lines. Where a nozzle is incorporated into an appliance it may be located on a surface of an appliance that is exposed when the appliance is installed. A pop-out nozzle may be provided behind a burst panel. The appliance may also include an internal fire suppressing system.