3323839

Information

• Patent Grant
• 3323839

• References
• Source

• Patent Number

  3,323,839

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1967
  57 years ago

• CPC

  • B23Q15/12 - Adaptive control
  • E21C29/04 - by cable or chains
  • F16H61/46 - Automatic regulation in accordance with output requirements
  • F16H61/47 - for achieving a target output speed
  • H02P29/0033 - Controlling the mechanical load according to the amount of current drawn or delivered by the motor

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 173 - Tool driving or impacting