Patent ID: 8689826
Filing Date: 2014-04-08
Classification: F16K,Y10T

Abstract:
1. A rotation indicator assembly for a valve control handwheel comprising: a housing enclosing a support member in an interior space; a first shaft having a drive gear, the shaft positioned along a central axis of rotation of the housing and affixed to the housing; a rolling element attaching the support member to the shaft, the rolling element configured to allow the housing to axially rotate relative to the support member; a gear train engaged with the drive gear and configured to move an indicator needle adjacent a dial face in response to a change in axial position of the rotatable housing; a first magnet affixed to the support member; and a second magnet affixed to a mounting device for the valve control handwheel; wherein the first magnet and the second magnet are configured to maintain the support member in a substantially stationary position relative to the mounting device of the valve control handwheel.