2555139

Information

• Patent Grant
• 2555139

• References
• Source

• Patent Number

  2,555,139

• Date Filed

  Not available

• Date Issued

  Tuesday, May 29, 1951
  73 years ago

• CPC

  • B29C65/04 - Dielectric heating, e.g. high-frequency welding
  • B29C59/02 - by mechanical means
  • B29C65/7802 - Positioning the parts to be joined
  • B29C66/1122 - Single lap to lap joints
  • B29C66/306 - Applying a mark during joining
  • B29C66/4312 - for making flat seams in tubular or hollow articles
  • B29C66/73921 - characterised by the materials of both parts being thermoplastics
  • B29C66/80 - General aspects of machine operations or constructions and parts thereof
  • B29C66/81427 - comprising a single ridge
  • B29C66/8322 - Joining or pressing tools reciprocating along one axis
  • B65B51/22 - by friction or ultrasonic or high-frequency electrical means
  • B29C66/81419 - and flat
  • B29L2031/7176 - Letters

• US Classifications

  • 219 - Electric heating
  • 493 - Manufacturing container or tube from paper