3809061

Information

• Patent Grant
• 3809061

• References
• Source

• Patent Number

  3,809,061

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1974
  50 years ago

• CPC

  • F22B27/08 - bent helically
  • F24H1/43 - helically or spirally coiled
  • F28D7/024 - the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
  • F28F1/24 - and extending transversely

• US Classifications

  • 122 - Liquid heaters and vaporizers
  • 165 - Heat exchange
  • 166 - Wells