3749549

Information

• Patent Grant
• 3749549

• References
• Source

• Patent Number

  3,749,549

• Date Filed

  Not available

• Date Issued

  Tuesday, July 31, 1973
  51 years ago

• CPC

  • F26B17/16 - the materials passing down a heated surface
  • B01J8/12 - moved by gravity in a downward flow
  • F26B17/145 - consisting of non-perforated panels or baffles
  • F26B25/002 - for bulk goods
  • F26B2200/14 - Sand

• US Classifications

  • 432 - Heating
  • 034 - Drying and gas or vapor contact with solids