3657797

Information

• Patent Grant
• 3657797

• References
• Source

• Patent Number

  3,657,797

• Date Filed

  Not available

• Date Issued

  Tuesday, April 25, 1972
  52 years ago

• CPC

  • B31B1/72 - by applying or securing strips or sheets
  • B21D49/00 - Sheathing or stiffening objects
  • B23P11/005 - by expanding or crimping
  • B31B1/28 - around mandrels, including bottom-forming operations
  • B31B17/00 - Machinery characterised by making other boxes or cartons by assembling several separate sheets, blanks, or webs
  • B65H75/187 - Reinforcing end caps
  • B65H75/50 - Methods of making reels, bobbins, cop tubes, or the like by working an unspecified material, or several materials
  • B31B2201/2604 - around mandrels
  • B31B2201/6073 - by applying or securing strips or tape
  • B31B2217/082 - Making boxes from tubular webs or blanks
  • B31B2217/108 - Inserting necks in boxes, forming or applying shoulders
  • Y10T29/49833 - Punching, piercing or reaming part by surface of second part
  • Y10T29/4992 - by flaring inserted cup or tube end
  • Y10T29/4994 - Radially expanding internal tube
  • Y10T29/53722 - with radially acting tool inside annular work

• US Classifications

  • 029 - Metal working