3854913

Information

• Patent Grant
• 3854913

• References
• Source

• Patent Number

  3,854,913

• Date Filed

  Not available

• Date Issued

  Tuesday, December 17, 1974
  50 years ago

• CPC

  • F25J3/04642 - Recovering noble gases from air
  • F25J3/0685 - separation of noble gases
  • F25J3/069 - of helium
  • F25J3/08 - Separating gaseous impurities from gases or gaseous mixtures or from liquefied gases or liquefied gaseous mixtures
  • F25J2205/20 - using solidification of components
  • F25J2205/24 - using regenerators, cold accumulators or reversible heat exchangers
  • F25J2205/40 - using hybrid system
  • F25J2205/60 - using adsorption on solid adsorbents
  • F25J2210/42 - Nitrogen
  • F25J2215/04 - Recovery of liquid products
  • F25J2215/30 - Helium
  • F25J2215/32 - Neon
  • F25J2270/14 - External refrigeration with work-producing gas expansion loop
  • F25J2270/30 - Quasi-closed internal or closed external helium refrigeration cycle
  • F25J2270/904 - by liquid or gaseous cryogen in an open loop
  • Y10S62/923 - Inert gas

• US Classifications

  • 062 - Refrigeration