2431721

Information

• Patent Grant
• 2431721

• References
• Source

• Patent Number

  2,431,721

• Date Filed

  Not available

• Date Issued

  Tuesday, December 2, 1947
  77 years ago

• CPC

  • G05D9/02 - without auxiliary power
  • F25D31/003 - with immersed cooling element
  • Y10T137/7297 - With second diverse control
  • Y10T137/7329 - With supplemental or safety closing means or bias
  • Y10T137/7407 - With counter-balance
  • Y10T137/87917 - Flow path with serial valves and/or closures

• US Classifications

  • 062 - Refrigeration
  • 137 - Fluid handling
  • 236 - Automatic temperature and humidity regulation