3841238

Information

• Patent Grant
• 3841238

• References
• Source

• Patent Number

  3,841,238

• Date Filed

  Not available

• Date Issued

  Tuesday, October 15, 1974
  50 years ago

• CPC

  • H02P7/2913 - whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
  • H02P7/2985 - whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
  • Y02P80/116 - Electronic drive motor controls
  • Y10S388/917 - Thyristor or scr

• US Classifications

  • 180 - Motor vehicles
  • 388 - Electricity: motor control systems