3438721

Information

• Patent Grant
• 3438721

• References
• Source

• Patent Number

  3,438,721

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1969
  55 years ago

• CPC

  • F01N13/14 - having thermal insulation
  • B01D53/944 - Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
  • B01J23/84 - with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
  • B01J23/898 - with vanadium, tantalum, niobium or polonium
  • F01N3/22 - Regulation of additional air supply only
  • F01N3/2832 - granular
  • F01N3/2846 - specially adapted for granular supports
  • F01N3/30 - Arrangements for supply of additional air
  • F01N2310/02 - Mineral wool
  • F01N2330/08 - Granular material
  • F01N2390/00 - Arrangements for controlling or regulating exhaust apparatus
  • F01N2450/04 - Filling or emptying a chamber with granular material
  • F01N2450/24 - by bolts, screws, rivets or the like
  • F01N2470/30 - Tubes with restrictions, i.e. venturi or the like
  • F01N2550/00 - Monitoring or diagnosing the deterioration of exhaust systems
  • F01N2570/00 - Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
  • F01N2570/02 - Lead

• US Classifications

  • 423 - Chemistry of inorganic compounds
  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing