Patent ID: 6792817
Filing Date: 2004-09-21
Classification: H01F

Abstract:
An apparatus for magnetizing selected portions of a shaft in a substantially circumferential direction comprising:a first electrical conduction member; a second electrical conduction member; a third electrical conduction member adjacent the second electrical conduction member; at least first and second couplers in at least electrical communication with the second and third electrical conduction members, the couplers having an internal diameter sized to substantially surround and circumferentially contact first and second portions of the shaft; at least a third coupler in electrical communication with the first electrical conduction member, the third coupler having an internal diameter sized to substantially surround and circumferentially contact a third portion of the shaft between the first and second portions of the shaft, wherein the third coupler is disposed between and spaced apart from the first and second couplers; and means for applying electrical current to at least one of the electrical conduction members.