2770821

Information

• Patent Grant
• 2770821

• References
• Source

• Patent Number

  2,770,821

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1956
  68 years ago

• CPC

  • B23B31/38 - with overload clutches
  • B23Q11/04 - Arrangements preventing overload of tools
  • F16D7/025 - with flat clutching surfaces
  • Y10T74/18696 - including means to selectively transmit power [e.g., clutch, etc.]
  • Y10T408/68 - Tool or tool-support with thrust-applying machine-engaging screw

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool
  • 074 - Machine element or mechanism
  • 470 - Threaded, headed fastener, or washer making: process and apparatus