2226644

Information

• Patent Grant
• 2226644

• References
• Source

• Patent Number

  2,226,644

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1940
  84 years ago

• CPC

  • H02P9/24 - due to variation of make-to-break ratio of intermittently-operating contacts
  • Y10T307/858 - Voltage
  • Y10T307/872 - Repetitive make and break

• US Classifications

  • 322 - Electricity: single generator systems
  • 307 - Electrical transmission or interconnection systems