3147800

Information

• Patent Grant
• 3147800

• References
• Source

• Patent Number

  3,147,800

• Date Filed

  Not available

• Date Issued

  Tuesday, September 8, 1964
  60 years ago

• CPC

  • B21D53/085 - with fins places on zig-zag tubes or parallel tubes
  • F28D7/08 - the conduits being otherwise bent
  • F28D7/087 - assembled in arrays, each array being arranged in the same plane
  • F28F1/12 - the means being only outside the tubular element
  • F28F1/32 - the means having portions engaging further tubular elements
  • Y10S165/437 - Coiled
  • Y10S165/906 - Reinforcement

• US Classifications

  • 165 - Heat exchange