3644003

Information

• Patent Grant
• 3644003

• References
• Source

• Patent Number

  3,644,003

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  53 years ago

• CPC

  • B65G53/66 - use of indicator or control devices
  • B65G53/00 - Conveying materials in bulk through troughs, pipes, or tubes by floating the materials, or by flows of gas, liquid, or foam
  • B65G53/4691 - of air-lock type
  • B65G2812/1641 - Air pressure systems

• US Classifications

  • 406 - Conveyors: fluid current