2817775

Information

• Patent Grant
• 2817775

• References
• Source

• Patent Number

  2,817,775

• Date Filed

  Not available

• Date Issued

  Tuesday, December 24, 1957
  67 years ago

• CPC

  • G05B19/231 - the positional error is used to control continuously the servomotor according to its magnitude
  • G05B2219/41241 - Anti-coincidence, synchronizer
  • Y10T409/300896 - with sensing of numerical information and regulation without mechanical connection between sensing means and regulated means [i.e., numerical control]
  • Y10T409/301176 - Reproducing means

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 340 - Communications: electrical
  • 409 - Gear cutting, milling, or planing