3547047

Information

• Patent Grant
• 3547047

• References
• Source

• Patent Number

  3,547,047

• Date Filed

  Not available

• Date Issued

  Tuesday, December 15, 1970
  54 years ago

• CPC

  • F17C3/04 - by insulating layers
  • B65D88/74 - having means for heating, cooling, aerating or other conditioning of contents
  • F17C2201/0109 - with exteriorly curved end-piece
  • F17C2201/0166 - divided in several chambers
  • F17C2201/035 - with substantially horizontal main axis
  • F17C2203/0333 - Polyurethane
  • F17C2203/0629 - Two walls
  • F17C2205/0323 - Valves
  • F17C2205/0379 - Manholes or access openings for human beings
  • F17C2205/0394 - in direct contact with the pressure vessel
  • F17C2209/227 - by adhesive means
  • F17C2209/238 - Filling of insulants
  • F17C2270/0173 - Railways
  • Y10T29/49879 - Spaced wall tube or receptacle

• US Classifications

  • 105 - Railway rolling stock
  • 029 - Metal working