Apparatus for determining the position of a rotary

专利名称：Apparatus for determining the position of a

rotary valve

发明人：Drew LaMarca,Gary Kramer申请号：US09/032913申请日：19980302公开号：US06044791A公开日：20000404

摘要：A position indicator for a rotary valve actuator has a stator of one colormountable on a housing for the actuator and a rotor of a contrasting color which isconnected to the actuator output shaft for rotation with it. The rotor has inner and outercoaxial cylindrical walls with windows in the outer wall. The stator has a hollow cylindricalwall in the space between the rotor walls. When the windows of the rotor and stator arein registration the inner wall of the rotor is visible and the stator is hidden to indicate oneposition of the actuator output shaft. When the windows of the rotor and stator are outof registration the inner wall of the rotor is hidden by the stator wall which is visiblethrough the rotor window to indicate another position of the actuator output shaft. Acircuit actuator and sensor may be mounted on the rotor and stator for generatingelectrical signals indicative of the actuator output shaft position in addition to the visualindication.

申请人：AUTOMATIC SWITCH COMPANY

代理机构：Levine & Mandelbaum

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