2639131

Information

• Patent Grant
• 2639131

• References
• Source

• Patent Number

  2,639,131

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1953
  72 years ago

• CPC

  • B01F3/04262 - consisting of rigid porous or perforated material
  • C02F3/20 - using diffusers
  • B01F2003/04276 - characterized by the way in which they are assembled or mounted; Fabricating the parts of the diffusers
  • B01F2003/04304 - having dome-, cap-, inversed cone-shape
  • B01F2003/0439 - Pores
  • Y02W10/15 - Aerobic processes
  • Y10S261/70 - Sewage aerators diffusers

• US Classifications

  • 261 - Gas and liquid contact apparatus
  • 210 - Liquid purification or separation