2217578

Information

• Patent Grant
• 2217578

• References
• Source

• Patent Number

  2,217,578

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1940
  84 years ago

• CPC

  • F17C13/02 - Special adaptations of indicating, measuring, or monitoring equipment
  • G01F23/50 - using mechanically actuated indicating means
  • F17C2205/0329 - manually actuated
  • F17C2205/0332 - Safety valves or pressure relief valves
  • F17C2205/0335 - Check-valves or non-return valves
  • F17C2205/0338 - Pressure regulators
  • F17C2205/0391 - inside the pressure vessel
  • F17C2223/0153 - Liquefied gas
  • F17C2223/033 - Small pressure
  • F17C2250/0408 - Level of content in the vessel
  • F17C2260/015 - Facilitating maintenance
  • F17C2260/036 - Avoiding leaks
  • F17C2270/0147 - by burying vessels
  • F17C2270/016 - onshore
  • Y10T137/6086 - Assembling or disassembling check valve
  • Y10T137/7848 - Permits flow at valve interface
  • Y10T137/8342 - Liquid level responsive indicator, recorder or alarm

• US Classifications

  • 222 - Dispensing
  • 073 - Measuring and testing
  • 137 - Fluid handling
  • 220 - Receptacles