3643581

Information

• Patent Grant
• 3643581

• References
• Source

• Patent Number

  3,643,581

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  52 years ago

• CPC

  • F04D19/002 - Axial flow fans
  • F23L17/00 - Inducing draught
  • F23J2900/15004 - Preventing plume emission at chimney outlet
  • F23L2700/001 - Installations for increasing draught in chimneys
  • Y10S55/29 - Air curtains
  • Y10S261/77 - Plume abatement

• US Classifications

  • 454 - Ventilation
  • 055 - Gas separation
  • 110 - Furnaces
  • 239 - Fluid sprinkling, spraying, and diffusing
  • 261 - Gas and liquid contact apparatus
  • 418 - Rotary expansible chamber devices