Patent ID: 7667769

Claim:
A rotatable wireless electrical coupler having a first rotatable section that is rotatable relative to a second section, and designed to provide for the wireless transfer therethrough of electrical power and data signals between the first rotatable section and the second section, comprising: a rotatable transformer for transferring power therethrough, said rotatable transformer including a first rotatable winding section and a second winding section, which winding sections rotate relative to one another around a common rotational axis; and a rotatable electrical capacitor for transferring analog or digital data signals therethrough, said rotatable electrical capacitor including a first rotatable capacitor electrode and a second capacitor electrode, which capacitor electrodes rotate relative to one another around the common rotational axis, wherein the rotatable electrical capacitor includes an inner data rod, an intermediate data tube and an outer ground tube, with the inner data rod and the intermediate data tube being concentrically mounted within the outer ground tube, and wherein video data is transferred between the intermediate data tube and the inner data rod, wherein the rotatable electrical capacitor extends through the rotatable transformer along the rotational axis of the rotatable transformer and wherein the rotational axis of the rotatable transformer and electrical capacitor are coextensive and wherein the rotatable electrical capacitor is formed along a central portion of the rotatable wireless electrical coupler and wherein a spring contact provides a resilient electrical contact against one end of the inner data rod which is part of the second section and is mounted within the rotatable data tube which is a part of the first rotatable section.