2638985

Information

• Patent Grant
• 2638985

• References
• Source

• Patent Number

  2,638,985

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1953
  71 years ago

• CPC

  • B23D23/04 - by means of holding-dies, arranged side by side, subjecting the stock to torsional stress
  • Y10T83/416 - Rotary relative movement solely about a single pivot
  • Y10T83/9447 - Shear type
  • Y10T225/321 - Preliminary weakener
  • Y10T225/364 - Axial twisters

• US Classifications

  • 225 - Severing by tearing or breaking
  • 083 - Cutting