2621704

Information

• Patent Grant
• 2621704

• References
• Source

• Patent Number

  2,621,704

• Date Filed

  Not available

• Date Issued

  Tuesday, December 16, 1952
  72 years ago

• CPC

  • B29C65/222 - comprising at least a single heated wire
  • B29C65/226 - characterised by the cross-section of said heated wire, resistive ribbon, resistive band or resistive strip
  • 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
  • B29C66/349 - Cooling the welding zone on the welding spot
  • B29C66/43 - Joining a relatively small portion of the surface of said articles
  • B29C66/73921 - characterised by the materials of both parts being thermoplastics
  • B29C66/80 - General aspects of machine operations or constructions and parts thereof
  • B29C66/81427 - comprising a single ridge
  • B29C66/81457 - comprising a block or layer of deformable material
  • B29C66/81811 - of the welding jaws
  • B29C66/83221 - cooperating reciprocating tools, each tool reciprocating along one axis
  • B29C65/38 - Impulse heating
  • B29C66/8122 - characterised by the composition of the material constituting the pressing elements
  • B29C66/81262 - Electrical and dielectric properties
  • B29C66/81422 - being convex
  • B29C66/8185 - comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
  • B29C66/81871 - of the welding jaws

• US Classifications

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