2489028

Information

• Patent Grant
• 2489028

• References
• Source

• Patent Number

  2,489,028

• Date Filed

  Not available

• Date Issued

  Tuesday, November 22, 1949
  76 years ago

• CPC

  • B67D7/48 - by making use of air suction through an opening closed by the rising liquid
  • B67C3/32 - using counterpressure

• US Classifications

  • 141 - Fluent material handling, with receiver or receiver coacting means
  • 181 - Acoustics