2801444

Information

• Patent Grant
• 2801444

• References
• Source

• Patent Number

  2,801,444

• Date Filed

  Not available

• Date Issued

  Tuesday, August 6, 1957
  67 years ago

• CPC

  • B29C45/56 - using mould parts movable during or after injection
  • B29C49/022 - the parison being partly injected and partly extruded
  • B29D23/20 - Flexible squeeze tubes
  • B29C47/0016 - Rod-shaped articles
  • B29C47/0023 - Hollow rigid articles having only one tubular passage
  • B29C47/0026 - Hollow flexible articles
  • B29C47/003 - Articles having cross-sectional irregularities
  • B29C47/0033 - Articles having longitudinal irregularities
  • B29C2045/5695 - using a movable mould part for continuously increasing the volume of the mould cavity to its final dimension during the whole injection step
  • B29L2023/20 - Flexible squeeze tubes
  • Y10S264/41 - Processes of molding collapsible tubes

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 053 - Package making
  • 425 - Plastic article or earthenware shaping or treating: apparatus