Patent · US Expired

Vehicle wheel rotation speed measuring system

US3949252A · kind A · utility

9Cited by
1References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 10, 1975
Grant dateApr 6, 1976
Priority date
Expiry dateMar 10, 1995

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60G2204/115
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

To permit ready assembly and disassembly, without problems of centricity of relative elements, the hub cap of a wheel includes a stub shaft on which a stator is retained in fixed position with respect to the axle, by spring engagement means, the hub cap rotating with respect to the stator and carrying a magnet pole rotor ring, the spring engagement means additionally providing electrical contact between an armature winding in inductive relationship to the rotor ring.

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