2770837

Information

• Patent Grant
• 2770837

• References
• Source

• Patent Number

  2,770,837

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1956
  68 years ago

• CPC

  • B30B11/248 - Means preventing the material from turning with the screw or returning towards the feed hopper
  • B28B3/22 - by screw or worm
  • B29B7/425 - with screw surrounded by a casing provided with grooves or cavities
  • B29C47/0009 - characterised by the shape of the articles
  • B29C47/38 - using screws surrounded by a cooperating barrel
  • B29C47/6043 - having grooves or cavities
  • B29C47/666 - having grooves or cavities
  • B30B11/24 - using screws or worms
  • B65G33/00 - Screw or rotary spiral conveyors
  • B65G2812/0527 - characterised by the configuration

• US Classifications

  • 198 - Conveyors: power-driven
  • 100 - Presses
  • 366 - Agitating