3759457

Information

• Patent Grant
• 3759457

• References
• Source

• Patent Number

  3,759,457

• Date Filed

  Not available

• Date Issued

  Tuesday, September 18, 1973
  51 years ago

• CPC

  • B65H23/0326 - by moving the unwinding device
  • B65G39/16 - for aligning belts or chains
  • B65H23/0212 - with an element utilising fluid flow
  • D21F1/365 - for controlling the lateral position of the screen
  • F15B5/003 - characterised by variation of the pressure in a nozzle or the like

• US Classifications

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