3559021

Information

• Patent Grant
• 3559021

• References
• Source

• Patent Number

  3,559,021

• Date Filed

  Not available

• Date Issued

  Tuesday, January 26, 1971
  53 years ago

• CPC

  • G05B19/4205 - in which a drawing is traced or scanned and corresponding data recorded
  • G05B19/371 - the positional error is used to control continuously the servomotor according to its magnitude
  • Y10T409/300896 - with sensing of numerical information and regulation without mechanical connection between sensing means and regulated means [i.e., numerical control]
  • Y10T409/30112 - Process

• US Classifications

  • 318 - Electricity: motive power systems
  • 033 - Geometrical instruments
  • 409 - Gear cutting, milling, or planing