2423397

Information

• Patent Grant
• 2423397

• References
• Source

• Patent Number

  2,423,397

• Date Filed

  Not available

• Date Issued

  Tuesday, July 1, 1947
  77 years ago

• CPC

  • F22D5/24 - with electric switches
  • Y10T137/0374 - For regulating boiler feed water level
  • Y10T137/3115 - Gas pressure storage over or displacement of liquid
  • Y10T137/7762 - Fluid pressure type
  • Y10T137/7787 - Expansible chamber subject to differential pressures

• US Classifications

  • 137 - Fluid handling
  • 073 - Measuring and testing
  • 122 - Liquid heaters and vaporizers
  • 200 - Electricity: circuit makers and breakers
  • 236 - Automatic temperature and humidity regulation
  • 251 - Valves and valve actuation
  • 318 - Electricity: motive power systems
  • 417 - Pumps