3311755

Information

• Patent Grant
• 3311755

• References
• Source

• Patent Number

  3,311,755

• Date Filed

  Not available

• Date Issued

  Tuesday, March 28, 1967
  57 years ago

• CPC

  • H03D13/001 - in which a pulse counter is used followed by a conversion into an analog signal
  • G01P3/565 - by measuring or by comparing the phase of generated current or voltage
  • G05D3/18 - delivering a series of pulses
  • H02P7/2885 - whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value

• US Classifications

  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 324 - Electricity: measuring and testing