3739659

Information

• Patent Grant
• 3739659

• References
• Source

• Patent Number

  3,739,659

• Date Filed

  Not available

• Date Issued

  Tuesday, June 19, 1973
  51 years ago

• CPC

  • B25B21/008 - with automatic change-over from high speed-low torque mode to low speed-high torque mode
  • B25B23/145 - specially adapted for fluid operated wrenches or screwdrivers
  • F16H61/0262 - the signals being hydraulic
  • F16H2718/24 - the control being hydraulic or pneumatic
  • Y10S173/02 - Sound muffling

• US Classifications

  • 475 - Planetary gear transmission systems or components
  • 081 - Tools
  • 173 - Tool driving or impacting
  • 192 - Clutches and power-stop control