1557907

Information

• Patent Grant
• 1557907

• References
• Source

• Patent Number

  1,557,907

• Date Filed

  Not available

• Date Issued

  Tuesday, October 20, 1925
  99 years ago

• CPC

  • F25J3/04296 - Claude expansion
  • F25J3/04327 - of argon or argon enriched stream
  • F25J3/04624 - using integrated mass and heat exchange, so-called non-adiabatic rectification
  • F25J3/04715 - The auxiliary column system simultaneously produces oxygen
  • F25J2200/10 - in a quadruple, or more, column or pressure system
  • F25J2200/54 - in the low pressure column of a double pressure main column system

• US Classifications

  • 062 - Refrigeration