Patent ID: 7563984

Claim:
A sleeve ( 11 ) for connecting an at least partially electrically conductive, elastically resilient sheath ( 21 ) of an alternating current winding ( 4 ), which is placed in a groove ( 2 ) of a long-stator ( 1 ), to a ground conductor ( 17 ), consisting of a shell-like, resilient element being made of an electrically conductive metal sheet and partly enclosing said winding ( 4 ) over more than a half of said winding in such a manner that said winding ( 4 ) is pressable into said sleeve ( 11 ) after said sleeve ( 11 ) has been placed in said groove ( 2 ), wherein said sleeve ( 11 ) has at least one inwardly protruding nominal contact-point ( 18 ) forming a contact-area ( 18 a ) which presses into said sheath ( 21 ) after said winding ( 4 ) has been placed into said sleeve ( 11 ) and a connecting element ( 16 ) for said ground conductor ( 17 ) positioned at least one longitudinal end, wherein said nominal contact-point ( 18 ) consists of a bulge-shaped elevation in the form of a bead having a smooth or slightly arched contact-area ( 18 a ).