3855037

Information

• Patent Grant
• 3855037

• References
• Source

• Patent Number

  3,855,037

• Date Filed

  Not available

• Date Issued

  Tuesday, December 17, 1974
  50 years ago

• CPC

  • B65B51/20 - by fluid pressure acting directly on folds or on opposed surfaces
  • B29C65/103 - direct heating both surfaces to be joined
  • B29C65/7873 - using cooperating conveyor belts or cooperating conveyor chains
  • B29C66/1122 - Single lap to lap joints
  • B29C66/348 - Avoiding melting or weakening of the zone directly next to the joint area
  • B29C66/3492 - by means placed on the side opposed to the welding tool
  • B29C66/43121 - Closing the ends of tubular or hollow single articles
  • B29C66/4322 - by joining a single sheet to itself
  • B29C66/73921 - characterised by the materials of both parts being thermoplastics
  • B29C66/8181 - characterised by the cooling constructional aspects
  • B29C66/83413 - cooperating rollers, cylinders or drums
  • B29C66/836 - Moving relative to and tangentially to the parts to be joined
  • B65B51/18 - by endless bands or chains
  • B29C65/749 - Removing scrap
  • B29C66/71 - characterised by the composition of the plastics material of the parts to be joined
  • B29C2793/0081 - before shaping
  • B29L2031/7128 - Bags, sacks, sachets
  • Y10T156/1026 - with slitting or removal of material at reshaping area prior to reshaping
  • Y10T156/1067 - Continuous longitudinal slitting
  • Y10T156/1069 - Bonding face to face of laminae cut from single sheet
  • Y10T156/108 - Flash, trim or excess removal
  • Y10T156/12 - Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
  • Y10T156/13 - Severing followed by associating with part from same source

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture