2215532

Information

• Patent Grant
• 2215532

• References
• Source

• Patent Number

  2,215,532

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1940
  84 years ago

• CPC

  • B65D81/3811 - formed of different materials
  • B65D81/382 - provided with liquid material between double walls
  • F16L59/147 - the insulation being located inwardly of the outer surface of the pipe

• US Classifications

  • 165 - Heat exchange
  • 052 - Static structures
  • 062 - Refrigeration
  • 110 - Furnaces
  • 122 - Liquid heaters and vaporizers
  • 138 - Pipes and tubular conduits
  • 252 - Compositions
  • 376 - Induced nuclear reactions: processes, systems, and elements
  • 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing