2574527

Information

• Patent Grant
• 2574527

• References
• Source

• Patent Number

  2,574,527

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1951
  73 years ago

• CPC

  • B31B1/56 - by rotary members co-operating with blades
  • B31B1/68 - by stitching, stapling, or riveting
  • B31B2201/2679 - by rotary members co-operating with blades
  • B31B2201/27 - Straightening the side walls of boxes, squaring collapsed folded box blanks, deforming boxes
  • B31B2201/606 - for joining the overlapping edges of collapsed blanks to form tubular blanks
  • B31B2203/003 - Making collapsible boxes Making boxes being in a collapsed condition at least during some of the manufacturing steps
  • B31B2203/082 - Making boxes from tubular webs or blanks, including tube or bottom forming operations

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 271 - Sheet feeding or delivering