2220545

Information

• Patent Grant
• 2220545

• References
• Source

• Patent Number

  2,220,545

• Date Filed

  Not available

• Date Issued

  Tuesday, November 5, 1940
  84 years ago

• CPC

  • B29C66/1142 - Single butt to butt joints
  • B29C65/12 - and welding bar
  • B29C66/43 - Joining a relatively small portion of the surface of said articles
  • B29C66/73921 - characterised by the materials of both parts being thermoplastics
  • B29C66/836 - Moving relative to and tangentially to the parts to be joined
  • B29C65/125 - characterised by the composition of the welding bar
  • B29K2101/12 - Thermoplastic materials

• US Classifications

  • 392 - Electric resistance heating devices
  • 004 - Baths, closets, sinks, and spittoons
  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 229 - Envelopes, wrappers, and paperboard boxes