3512240

Information

• Patent Grant
• 3512240

• References
• Source

• Patent Number

  3,512,240

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1970
  54 years ago

• CPC

  • B65H75/50 - Methods of making reels, bobbins, cop tubes, or the like by working an unspecified material, or several materials
  • B21D49/00 - Sheathing or stiffening objects
  • B65H75/187 - Reinforcing end caps
  • Y10T29/49936 - Surface interlocking
  • Y10T29/4994 - Radially expanding internal tube
  • Y10T29/5148 - including severing means
  • Y10T29/53652 - Tube and coextensive core
  • Y10T29/53722 - with radially acting tool inside annular work

• US Classifications

  • 029 - Metal working
  • 072 - Metal deforming