3257690

Information

• Patent Grant
• 3257690

• References
• Source

• Patent Number

  3,257,690

• Date Filed

  Not available

• Date Issued

  Tuesday, June 28, 1966
  58 years ago

• CPC

  • B29C49/44 - for applying pressure through the walls of an inflated bag
  • B29C33/505 - cores or mandrels
  • B29C63/28 - applied by "rubber" bag or diaphragm
  • B29C70/446 - Moulding structures having an axis of symmetry or at least one channel
  • B29C43/12 - using bags surrounding the moulding material or using membranes contacting the moulding material
  • B29K2101/10 - Thermosetting resins
  • B29K2105/06 - containing reinforcements, fillers or inserts
  • B29K2105/08 - of continuous length
  • B29K2309/12 - Asbestos
  • B29L2023/22 - Tubes or pipes
  • Y10S425/06 - Vacuum

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • 249 - Static molds