Patent · US Expired

Four-wheel alignment and measuring tool

US4967480A · kind A · utility

7Cited by
14References
8Claims
0Family size

Inventor

Key dates

Filing dateMay 8, 1989
Grant dateNov 6, 1990
Priority date
Expiry dateMay 8, 2009

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01B5/255
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A device for measuring and determining the condition of wheel position and alignment in a unibody automobile, include wheel setback, toe-in, toe-out, front end squareness, camber, caster, wheel base, tram, and tracking in a simple single configuration tool. The basic instrument is a fixture that installs on each wheel within the perimeter of the wheel, and includes angle measuring and distance measuring arms that interplay geometrically to diagnose each required wheel/body condition. Simple mechanical rulers and levers are all that is necessary for use.

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