3293765

Information

• Patent Grant
• 3293765

• References
• Source

• Patent Number

  3,293,765

• Date Filed

  Not available

• Date Issued

  Tuesday, December 27, 1966
  58 years ago

• CPC

  • B31B21/00 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents, from sheets or blanks
  • B31B19/62 - by adhesives
  • F26B3/347 - Electromagnetic heating
  • F26B13/007 - Treating a particular portion of the web or plate
  • B31B2219/6015 - Arrangements for permitting the glue to set
  • B31B2221/10 - the bags having no structural provision at the base for thickness of content

• US Classifications

  • 034 - Drying and gas or vapor contact with solids
  • 219 - Electric heating