3667012

Information

• Patent Grant
• 3667012

• References
• Source

• Patent Number

  3,667,012

• Date Filed

  Not available

• Date Issued

  Tuesday, May 30, 1972
  52 years ago

• CPC

  • H02P27/04 - using variable-frequency supply voltage
  • H02P27/05 - using AC supply for both the rotor and the stator circuits, the frequency of supply to at least one circuit being variable

• US Classifications

  • 318 - Electricity: motive power systems