3837961

Information

• Patent Grant
• 3837961

• References
• Source

• Patent Number

  3,837,961

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1974
  50 years ago

• CPC

  • B65D35/08 - from plastics material
  • B29C65/3656 - being a layer of a multilayer part to be joined
  • B29C65/368 - with a polymer coating
  • B29C66/0242 - Heating, or preheating
  • B29C66/0342 - Cooling
  • B29C66/1122 - Single lap to lap joints
  • B29C66/43123 - Closing the ends of squeeze tubes
  • B29C66/5344 - said single elements being substantially annular, i.e. of finite length
  • B29C66/72321 - consisting of metals or their alloys
  • B29C66/81419 - and flat
  • B29C66/81811 - of the welding jaws
  • B29C66/81875 - of the clamps
  • B29C66/8221 - Scissor or lever mechanisms
  • B29C66/83241 - cooperating pivoting tools
  • B65B51/227 - by induction welding
  • B65B51/32 - Cooling, or cooling and pressing, package closures after heat-sealing
  • B29C66/133 - Fin-type joints, the parts to be joined being flexible
  • B29C66/71 - characterised by the composition of the plastics material of the parts to be joined
  • B29C66/8122 - characterised by the composition of the material constituting the pressing elements
  • B29C66/8242 - Pneumatic or hydraulic drives
  • B29L2009/003 - comprising a metal layer
  • B29L2023/20 - Flexible squeeze tubes

• US Classifications

  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 219 - Electric heating