3778211

Information

• Patent Grant
• 3778211

• References
• Source

• Patent Number

  3,778,211

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1973
  51 years ago

• CPC

  • C21D1/74 - Methods of treatment in inert gas, controlled atmosphere, vacuum, or pulverulent material
  • B29C45/36 - having means for locating or centering cores
  • B29C45/56 - using mould parts movable during or after injection
  • B29C2045/363 - using a movable core or core part
  • 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

• US Classifications

  • 425 - Plastic article or earthenware shaping or treating: apparatus