Patent ID: 6520006
Filing Date: 2003-02-18
Classification: B60C

Abstract:
A magnetically coupled pressure gauge for indicating fluid pressure within a pressure vessel outside the pressure vessel, comprising in combination,(a) a rotatable sender means mounted inside of the pressure vessel for providing a rotatable magnetic field having a specific direction, the specific direction of the provided magnetic field rotating in a plane parallel to an axis of symmetry of the magnetic field; (b) a pressure actuated bellows mechanism also mounted inside of the pressure vessel coupled for rotating the sender means rotationally changing orientation of the specific direction of the magnetic field in the plane parallel to the axis of symmetry responsive to variations in fluid pressure within the vessel; and (c) sensor means mounted outside of the pressure vessel for sensing and indicating orientation of the specific direction of the magnetic field provided by the sender means in the plane parallel its axis of symmetry as rotated to a particular orientation by the pressure actuated bellows mechanism.