Invention Grant
US08550115B2 Valve position indicator 有权
阀门位置指示器

Valve position indicator
Abstract:
A valve position assembly is described herein, wherein the assembly includes a sun gear, at least one planet gear, two ring gears, wherein the planet gear engages with the sun gear and the ring gears, wherein the planet gear has a diameter which is smaller than a diameter of the sun gear, and the diameter of the planet gear is smaller than a diameter of the ring gears, and a scale plate, wherein the plate comprises a position indicator.
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