3916990

Information

• Patent Grant
• 3916990

• References
• Source

• Patent Number

  3,916,990

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1975
  49 years ago

• CPC

  • F28F9/0135 - formed by grids having only one tube per closed grid opening
  • F28D7/1669 - the conduit assemblies having an annular shape; the conduits being assembled around a central distribution tube
  • F28F9/02 - Header boxes End plates
  • F28F9/0239 - floating header boxes
  • F28F2265/26 - for allowing differential expansion between elements

• US Classifications

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