Abstract: An electrostatic angle resolver has a stator for producing a patterned electrostatic field, a rotor having sensivitity to the electrostatic field, a capacitive coupling providing a signal interconnection between the rotor and the stator, and an active shield supplied with a voltage signal substantially identical to that signal present on the stator thereby diminishing degradation in the strength of the signal coupled between the rotor and the stator.

Abstract: The present invention relates to an apparatus for making cuts along the circumferential surface of a can. The apparatus includes a frame and a plurality of rollers rotatably coupled to the frame for receiving and movably supporting the circumferential surface of the can. A cutter is provided for cutting along the circumferential surface of the can. A guide is coupled to the cutter and to the frame in known registration with the rollers for movably guiding the cutter along the desired cutting path over the circumferential surface of the can.In a first preferred embodiment of the present invention the rollers are arranged so as to allow the can to rotate about its central cylindrical axis. The rollers are elongated and cylindrical in form and each has an axis of rotation generally parallel with the central cylindrical axis of the can.