3756435

Information

• Patent Grant
• 3756435

• References
• Source

• Patent Number

  3,756,435

• Date Filed

  Not available

• Date Issued

  Tuesday, September 4, 1973
  51 years ago

• CPC

  • B65G19/14 - for moving bulk material in closed conduits
  • B65G53/44 - Endless conveyors
  • H01J29/865 - Vacuum locks
  • H01J37/18 - Vacuum locks; Means for obtaining or maintaining the desired pressure within the vessel

• US Classifications

  • 414 - Material or article handling
  • 034 - Drying and gas or vapor contact with solids
  • 204 - Chemistry: electrical and wave energy
  • 219 - Electric heating