3818737

Information

• Patent Grant
• 3818737

• References
• Source

• Patent Number

  3,818,737

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  50 years ago

• CPC

  • B65H19/305 - Inserting core
  • B21C47/02 - Winding-up or coiling
  • B21C47/066 - with belt wrappers only
  • B21C47/34 - Feeding or guiding devices not specially adapted to a particular type of apparatus
  • B21C47/3433 - for guiding the leading end of the material
  • B21C47/3441 - Diverting the leading end
  • B65H19/2207 - the web roll being driven by a winding mechanism of the centre or core drive type

• US Classifications

  • 072 - Metal deforming