2221127

Information

• Patent Grant
• 2221127

• References
• Source

• Patent Number

  2,221,127

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1940
  84 years ago

• CPC

  • B23Q11/148 - by controlling the air temperature
  • B23F23/12 - Other devices
  • B23F23/1243 - Hob holders
  • B23Q11/143 - comprising heating means
  • Y10S82/90 - Lathe thermal regulation
  • Y10T29/4976 - Temperature
  • Y10T409/10159 - Hobbing

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 029 - Metal working
  • 082 - Turning
  • 165 - Heat exchange
  • 451 - Abrading