2981123

Information

• Patent Grant
• 2981123

• References
• Source

• Patent Number

  2,981,123

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1961
  64 years ago

• CPC

  • G05D3/12 - using feedback
  • Y10T74/18328 - Alternately rotated screw
  • Y10T74/1907 - Parallel and aligned
  • Y10T74/20492 - Gear
  • Y10T409/300896 - with sensing of numerical information and regulation without mechanical connection between sensing means and regulated means [i.e., numerical control]

• US Classifications

  • 074 - Machine element or mechanism
  • 033 - Geometrical instruments
  • 409 - Gear cutting, milling, or planing