2472820

Information

• Patent Grant
• 2472820

• References
• Source

• Patent Number

  2,472,820

• Date Filed

  Not available

• Date Issued

  Tuesday, June 14, 1949
  75 years ago

• CPC

  • B29C66/845 - C-clamp type or sewing machine type
  • B29C65/04 - Dielectric heating, e.g. high-frequency welding
  • B29C66/1122 - Single lap to lap joints
  • B29C66/43 - Joining a relatively small portion of the surface of said articles
  • B29C66/8161 - said pressing elements being supported or backed-up by springs or by resilient material
  • B29C66/81871 - of the welding jaws
  • B29C66/83413 - cooperating rollers, cylinders or drums
  • H05B6/48 - Circuits
  • H05B6/56 - Rolling electrodes
  • H05B6/62 - Apparatus for specific applications
  • B29C66/73143 - Dielectric properties

• US Classifications

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