3662582

Information

• Patent Grant
• 3662582

• References
• Source

• Patent Number

  3,662,582

• Date Filed

  Not available

• Date Issued

  Tuesday, May 16, 1972
  52 years ago

• CPC

  • G11C7/1048 - Data bus control circuits
  • B21C37/15 - Making tubes of special shape Making tube fittings
  • B21C37/20 - Making helical or similar guides in or on tubes without removing material
  • B21C37/202 - with guides parallel to the tube axis
  • B21C37/207 - with helical guides
  • F28D7/024 - the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
  • F28F1/02 - Tubular elements of cross-section which is non-circular
  • F28F1/022 - with multiple channels
  • F28F1/025 - with variable shape.
  • F28F1/40 - the means being only inside the tubular element
  • F28F1/42 - the means being both outside and inside the tubular element
  • F28F1/422 - with outside means integral with the tubular element and inside means integral with the tubular element
  • F28F1/424 - Means comprising outside portions integral with inside portions
  • Y10T29/49378 - Finned tube

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working
  • 165 - Heat exchange