3857688

Information

• Patent Grant
• 3857688

• References
• Source

• Patent Number

  3,857,688

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1974
  50 years ago

• CPC

  • B01D46/0012 - In-line filters
  • B01D39/2017 - the material being filamentary or fibrous
  • B01D39/2024 - otherwise bonded
  • B01D46/0021 - arranged concentrically or coaxially
  • B01D46/2411 - Filter cartridges
  • B01D46/521 - using folded, pleated material
  • B01D50/002 - Combinations of devices relating to groups B01D45/00 and B01D46/00
  • F01N3/021 - by means of filters
  • F01N3/0211 - Arrangements for mounting filtering elements in housing
  • F01N3/0217 - the filtering elements having the form of hollow cylindrical bodies
  • F01N3/0226 - the structure being fibrous
  • F01N3/033 - in combination with other devices
  • F01N3/037 - by means of inertial or centrifugal separators
  • F01N13/009 - having two or more separate purifying devices arranged in series
  • F01N13/011 - having two or more purifying devices arranged in parallel
  • B01D2273/20 - High temperature filtration
  • B01D2279/30 - for treatment of exhaust gases from IC Engines
  • F01N2240/20 - a flow director or deflector
  • F01N2250/08 - filtering and inertial particulate separation
  • F01N2330/102 - fibrous material being fiber reinforced polymer made of plastic matrix reinforced by fine glass or in the form of a loose mass of filaments or fibers
  • F01N2370/22 - used in non-catalytic purification apparatus
  • F01N2450/30 - Removable or rechangeable blocks or cartridges
  • F01N2470/14 - Plurality of outlet tubes
  • F01N2470/16 - Plurality of inlet tubes
  • Y02T10/20 - Exhaust after-treatment
  • Y10S55/30 - Exhaust treatment
  • Y10S55/31 - Filter frame

• US Classifications

  • 055 - Gas separation
  • 060 - Power plants