Patent · US Expired

Method of manufacturing a magnetic strip magnet speed ring

US7007371B1 · kind B1 · utility

2Cited by
8References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 24, 2003
Grant dateMar 7, 2006
Priority date
Expiry dateJun 28, 2024

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T83/0581
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A method of manufacturing a speed ring in a continuous process using a magnetizing fixture and a trimming fixture. An unmagnetized magnetic strip is fed into the trolley of a magnetizing fixture, clamped stretched, and magnetized by a coil. The newly magnetized strip is then cut and fed into a trimming fixture. As the magnetized strip goes through the trimming fixture, it runs over a hall effect sensor which determines where a center of a pair of poles is located. Based on where a pair of poles is located the cutting blade of the trimming fixture is activated and a magnetic strip that can be turned into a speed ring is created.

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