TREA

Spherometers

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Industry

  • CPC
  • G01B7/286
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Parent Industries

GPHYSICS G01Measuring instruments G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS G01B7/00Measuring arrangements characterised by the use of electric or magnetic means

Current Industry

G01B7/286Spherometers
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Ball diameter automatic measurement device and method
    • Patent number 6,247,241
    • Issue date Jun 19, 2001
    • NSK Ltd.
    • Koji Hashimoto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method and apparatus for testing balls with the use of eddy currents
    • Patent number 5,008,623
    • Issue date Apr 16, 1991
    • SKF Industrial Trading and Development Company BV
    • Hendrik Dolfsma
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3578746
    • Patent number 3,578,746
    • Issue date May 18, 1971
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3319163
    • Patent number 3,319,163
    • Issue date May 9, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3315367
    • Patent number 3,315,367
    • Issue date Apr 25, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3207979
    • Patent number 3,207,979
    • Issue date Sep 21, 1965
    • G01 - MEASURING TESTING