3753830

Information

• Patent Grant
• 3753830

• References
• Source

• Patent Number

  3,753,830

• Date Filed

  Not available

• Date Issued

  Tuesday, August 21, 1973
  52 years ago

• CPC

  • B29C51/36 - specially adapted for vacuum forming , Manufacture thereof
  • B29C51/00 - Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating
  • B29C51/04 - Combined thermoforming and prestretching
  • B29C51/16 - Lining or labelling
  • B29C51/32 - having cutting means
  • B29C51/34 - for undercut articles
  • B29C51/422 - to produce a temperature differential
  • B29C51/427 - Cooling of the material with a fluid blast
  • B29C67/0048 - Local deformation of formed objects
  • B29C51/10 - Forming by pressure difference

• US Classifications

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