2948999

Information

• Patent Grant
• 2948999

• References
• Source

• Patent Number

  2,948,999

• Date Filed

  Not available

• Date Issued

  Tuesday, August 16, 1960
  64 years ago

• CPC

  • B65B9/093 - the web having intermittent motion
  • B29C65/1448 - radiating the edges of the parts to be joined
  • B29C65/223 - comprising several heated wires
  • B29C65/224 - being a resistive ribbon, a resistive band or a resistive strip
  • B29C65/228 - characterised by the means for electrically connecting the ends of said heated wire, resistive ribbon, resistive band or resistive strip
  • B29C65/229 - characterised by the means for tensioning said heated wire, resistive ribbon, resistive band or resistive strip
  • B29C65/7433 - the tool being a wire
  • B29C66/137 - Beaded-edge joints or bead seals
  • B29C66/43 - Joining a relatively small portion of the surface of said articles
  • B29C66/431 - Joining the articles to themselves
  • B29C66/43121 - Closing the ends of tubular or hollow single articles
  • B29C66/7373 - Joining soiled or oxidised materials
  • B29C66/73921 - characterised by the materials of both parts being thermoplastics
  • B29C66/8161 - said pressing elements being supported or backed-up by springs or by resilient material
  • B29C66/818 - characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
  • B29C66/81811 - of the welding jaws
  • B29C66/8322 - Joining or pressing tools reciprocating along one axis
  • B29C66/91421 - of the joining tools
  • B29C66/91431 - the temperature being kept constant over time
  • B29C66/91641 - the heat or the thermal flux being non-constant over time
  • B65B51/24 - to produce bead seals
  • B29C66/71 - characterised by the composition of the plastics material of the parts to be joined
  • B29C66/73143 - Dielectric properties
  • B29C66/81871 - of the welding jaws
  • Y10S383/908 - Material having specified grain direction or molecular orientation

• US Classifications

  • 053 - Package making
  • 383 - Flexible bags
  • 493 - Manufacturing container or tube from paper