3021571

Information

• Patent Grant
• 3021571

• References
• Source

• Patent Number

  3,021,571

• Date Filed

  Not available

• Date Issued

  Tuesday, February 20, 1962
  62 years ago

• CPC

  • B29C57/08 - using pressure difference
  • B29C49/56 - Opening, closing or clamping means
  • B29C49/58 - Blowing means
  • F16L47/00 - Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
  • B29C49/00 - Blow-moulding
  • B29C2049/0089 - the parison being a tube
  • B29K2105/258 - tubular
  • B29L2023/18 - Pleated or corrugated hoses
  • Y10S264/50 - Use of fluid pressure in molding
  • Y10S264/52 - Processes of making corrugated tubes for gas mask

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 285 - Pipe joints or couplings