3373664

Information

• Patent Grant
• 3373664

• References
• Source

• Patent Number

  3,373,664

• Date Filed

  Not available

• Date Issued

  Tuesday, March 19, 1968
  56 years ago

• CPC

  • B31B37/00 - Machinery characterised by making envelopes or bags with structural provision at the base for thickness of contents from webs
  • B31B19/84 - Forming valves or applying valve inserts
  • B31B19/96 - in overlapping arrangement
  • B31B19/98 - in stacks or bundles
  • B31B2219/9051 - Forming valves or applying valve inserts
  • B31B2219/922 - in overlapping arrangement
  • B31B2219/925 - in stacks or bundles
  • B31B2221/107 - obtained from sheets cut from larger sheets or webs before finishing the bag forming operations
  • B31B2221/20 - the bags having structural provision at the base for thickness of content
  • B31B2221/405 - the bags having their openings facing transversally to the direction of movement
  • B31B2221/60 - starting from tubular sheets

• US Classifications

  • 493 - Manufacturing container or tube from paper
  • 198 - Conveyors: power-driven