3554111

Information

• Patent Grant
• 3554111

• References
• Source

• Patent Number

  3,554,111

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1971
  54 years ago

• CPC

  • F24F13/072 - of elongated shape
  • F24F11/04 - solely for controlling the rate of air-flow
  • Y10T137/87434 - Valves deform to close passage

• US Classifications

  • 454 - Ventilation
  • 137 - Fluid handling
  • 181 - Acoustics
  • 236 - Automatic temperature and humidity regulation
  • 251 - Valves and valve actuation