3705932

Information

• Patent Grant
• 3705932

• References
• Source

• Patent Number

  3,705,932

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1972
  52 years ago

• CPC

  • B29C65/7861 - In-line machines
  • B29B13/023 - Half-products
  • B29C51/00 - Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating
  • B29C51/445 - from a support after moulding
  • B29C65/02 - by heating, with or without pressure
  • B29C65/7847 - using vacuum to hold at least one of the parts to be joined
  • B29C66/54 - Joining several hollow-preforms
  • B29C66/81423 - being concave
  • B29C66/8161 - said pressing elements being supported or backed-up by springs or by resilient material
  • B29C66/8221 - Scissor or lever mechanisms
  • B29C66/83221 - cooperating reciprocating tools, each tool reciprocating along one axis
  • B29C65/00 - Joining or sealing of preformed parts
  • B29C65/04 - Dielectric heating, e.g. high-frequency welding
  • B29C66/843 - Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
  • B29C2793/0009 - Cutting out
  • B29L2031/54 - Balls
  • B29L2031/542 - Christmas balls

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 156 - Adhesive bonding and miscellaneous chemical manufacture
  • 425 - Plastic article or earthenware shaping or treating: apparatus