3720381

Information

• Patent Grant
• 3720381

• References
• Source

• Patent Number

  3,720,381

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1973
  51 years ago

• CPC

  • B65H19/2246 - and the roll being supported on two rollers
  • B65H19/2253 - and the roll being displaced during the winding operation
  • B65H2301/41361 - sequentially used roll supports for the same web roll
  • B65H2301/41814 - by container storing cores and feeding through wedge-shaped slot or elongated channel
  • B65H2301/41822 - from above
  • B65H2408/235 - Cradles
  • B65H2801/81 - Packaging machines

• US Classifications

  • 242 - Winding, tensioning, or guiding