1874972

Information

• Patent Grant
• 1874972

• References
• Source

• Patent Number

  1,874,972

• Date Filed

  Not available

• Date Issued

  Tuesday, August 30, 1932
  92 years ago

• CPC

  • C10G73/025 - by filtration
  • B01D33/21 - with hollow filtering discs transversely mounted on a hollow rotary shaft
  • B01D33/463 - nozzles
  • B01D33/50 - with backwash arms, shoes or nozzles
  • B01D33/66 - by gases or by heating
  • B01D37/00 - Processes of filtration

• US Classifications

  • 208 - Mineral oils: processes and products
  • 210 - Liquid purification or separation