Patent · US Expired

Self-centering magnet assembly for use in a linear travel measurement device

US6536469B2 · kind B2 · utility

27Cited by
12References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 16, 2001
Grant dateMar 25, 2003
Priority date
Expiry dateMay 20, 2021

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/8242
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A magnet assembly is disclosed for use with a magnetic flux sensor to provide a position sensor adapted to detect a position of a moveable member. The magnet assembly comprises a magnet housing defining an inner surface. A magnet is provided that is sized for insertion into the magnet housing and adapted for movement with the moveable member, the magnet having a north pole and a south pole, wherein the magnet generates a magnetic flux. A centering ring is positioned between the magnet and the magnet housing, the centering ring including a biased wall acting to center the magnet in the magnet housing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.