2779851

Information

• Patent Grant
• 2779851

• References
• Source

• Patent Number

  2,779,851

• Date Filed

  Not available

• Date Issued

  Tuesday, January 29, 1957
  68 years ago

• CPC

  • B29C66/1122 - Single lap to lap joints
  • B26F1/12 - to notch margins of work
  • B26F3/10 - with heated rollers or discs
  • B26F3/12 - with heated wires
  • B29C65/223 - comprising several heated wires
  • B29C65/227 - said cross-section being hollow
  • B29C65/228 - characterised by the means for electrically connecting the ends of said heated wire, resistive ribbon, resistive band or resistive strip
  • B29C65/7433 - the tool being a wire
  • B29C65/7435 - the tool being a roller
  • B29C65/7437 - the tool being a perforating tool
  • B29C65/7439 - for continuously and longitudinally welding and severing webs
  • B29C66/21 - said joint lines being formed by a single dot or dash or by several dots or dashes
  • B29C66/43121 - Closing the ends of tubular or hollow single articles
  • B29C66/81469 - one placed next to the other in a single line transverse to the feed direction
  • B29C66/81871 - of the welding jaws
  • B29C66/8222 - Pinion or rack mechanisms
  • B29C66/83413 - cooperating rollers, cylinders or drums
  • B29C66/8432 - Machines for making separate joints at the same time mounted in parallel or in series
  • B29C66/92611 - by controlling or regulating the gap between the joining tools
  • Y10T156/1056 - Perforating lamina

• US Classifications

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