3780799

Information

• Patent Grant
• 3780799

• References
• Source

• Patent Number

  3,780,799

• Date Filed

  Not available

• Date Issued

  Tuesday, December 25, 1973
  51 years ago

• CPC

  • F28F1/32 - the means having portions engaging further tubular elements
  • B21D53/085 - with fins places on zig-zag tubes or parallel tubes
  • F28D1/0477 - the conduits being bent in a serpentine or zig-zag
  • F28F2215/12 - with U-shaped slots for laterally inserting conduits
  • Y10S165/498 - Fin assembly extends across side-by-side sections
  • Y10T29/4938 - Common fin traverses plurality of tubes

• US Classifications

  • 165 - Heat exchange
  • 029 - Metal working