Patent ID: 6242909
Filing Date: 2001-06-05
Classification: F16K,Y10T

Abstract:
A position indicator comprising,a stator having a base with a central axis,a rotor coaxially rotatably mounted on said stator, said rotor having a circumference with an eccentricity,an actuator member movably mounted relative to said base, said actuator member having a cam surface engageable by said eccentricity for moving said actuator member to an active position when said rotor rotates to a first predetermined position,restoration means mounted between said actuator member and said base for restoring said actuator member to a rest position when said rotor rotates away from said first predetermined position,magnetic switching means fixedly mounted relative to said base, said magnetic switching means having a first state in the absence of a magnetic field and a second state in the presence of a magnetic field,magnetic field producing means mounted on said actuator means for producing a magnetic field about said magnetic switching means thereby causing said magnetic switching means to be in said second state when said actuator member is in said active position, said magnetic switching means being free of said magnetic field and in said first state when said actuator member is in said rest position.