3834643

Information

• Patent Grant
• 3834643

• References
• Source

• Patent Number

  3,834,643

• Date Filed

  Not available

• Date Issued

  Tuesday, September 10, 1974
  50 years ago

• CPC

  • B65H20/24 - by looping or like devices
  • B21C47/003 - Regulation of tension or speed; Braking
  • B21C47/22 - Unwinding coils without reels or drums
  • B21C47/34 - Feeding or guiding devices not specially adapted to a particular type of apparatus
  • B65H16/08 - parallel rollers type
  • B65H2403/30 - Chain drives

• US Classifications

  • 242 - Winding, tensioning, or guiding
  • 226 - Advancing material of indeterminate length