Heat exchanger

• US 3,249,154 A
• Filed: 11/03/1961
• Issued: 05/03/1966
• Est. Priority Date: 11/23/1960
• Status: Expired due to Term

• Current Assignee: Pierre Legrand
• Original Assignee: Pierre Legrand
• Inventors: Legrand, Pierre
• Application Number:
  US04/149,928
• Time in Patent Office: 1,642 Days
• US Class Current: 165/164
• CPC Class Codes: F28D 7/00 Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
• CPC Class Codes: F28D 7/026 the conduits of only one medium being helically coiled and formed by bent members, e.g. plates, the coils having a cylindrical configuration
• CPC Class Codes: F28F 1/12 the means being only outside the tubular element
• CPC Class Codes: F28F 1/26 the means being integral with the element F28F1/32 takes precedence
• CPC Class Codes: F28F 1/36 the means being helically wound fins or wire spirals
• CPC Class Codes: F28F 1/42 the means being both outside and inside the tubular element
• CPC Class Codes: F28F 1/426 the outside portions and the inside portions forming parts of complementary shape, e.g. concave and convex
• CPC Class Codes: F28F 13/06 by affecting the pattern of flow of the heat-exchange media F28F13/003 takes precedence; static flow control means in header boxes F28F9/026
• CPC Class Codes: F28F 13/12 by creating turbulence, e.g. by stirring, by increasing the force of circulation F28F13/08 takes precedence
• CPC Class Codes: F28F 9/26 Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators connecting different sections in water heaters F24H9/14 , connecting headers with inlet or outlet fittings F28F9/0246
• CPC Class Codes: Y10S 165/452 including fins

Claims