2403699

Information

• Patent Grant
• 2403699

• References
• Source

• Patent Number

  2,403,699

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1946
  78 years ago

• CPC

  • F01N13/007 - Apparatus used as intake or exhaust silencer
  • F01N1/02 - by using resonance
  • F01N1/166 - for changing gas flow path through the silencer or for adjusting the dimensions of a chamber or a pipe
  • F01N1/168 - for controlling or modifying silencing characteristics only
  • F02M35/1227 - by using multiple air intake flow paths
  • F02M35/1233 - by using expansion chambers in the air intake flow path
  • F01N2490/12 - Chambers having variable volumes
  • F01N2490/155 - being disposed one after the other in flow direction
  • F02M35/12 - Intake silencers Sound modulation, transmission or amplification

• US Classifications

  • 181 - Acoustics
  • 089 - Ordnance