Patent · US Expired

Apparatus for detecting surface flaws in cylindrical articles

US5130653A · kind A · utility

5Cited by
11References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 17, 1990
Grant dateJul 14, 1992
Priority date
Expiry dateAug 17, 2010

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N27/9026
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Apparatus for detecting surface flaws in cylindrical articles having central longitudinal axes, including a guide assembly for guiding the cylindrical articles along a displacement path having a central longitudinal axis extending coaxially of the central longitudinal axes of the articles and a detection coil assembly positioned in annular relationship with the displacement path for producing a signal representative of the surface geometry of a cylindrical article which traverses the displacement path.

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