3792143

Information

• Patent Grant
• 3792143

• References
• Source

• Patent Number

  3,792,143

• Date Filed

  Not available

• Date Issued

  Tuesday, February 12, 1974
  51 years ago

• CPC

  • B24B19/20 - for grinding dies
  • B21D37/205 - Making cutting tools
  • B29C49/4802 - with means for locally compressing part(s) of the parison in the main blowing cavity
  • B29C49/04 - Extrusion blow-moulding
  • B29C2049/4805 - by closing the mould halves
  • B29C2049/4807 - by movable mould parts in the mould halves
  • B29C2049/4812 - and welding opposite wall parts of the parisons or preforms to each other
  • B29L2031/463 - Grips, handles

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes