2227405

Information

• Patent Grant
• 2227405

• References
• Source

• Patent Number

  2,227,405

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1940
  84 years ago

• CPC

  • F22B37/425 - Feed-water supply alarm devices using floats
  • F16K31/20 - actuating a lift valve
  • G01F23/32 - using rotatable arms or other pivotable transmission elements
  • Y10T137/2511 - Fuel controlled by boiler or water system condition
  • Y10T137/7365 - Single float controls plural valves
  • Y10T137/7374 - Flexible diaphragm valve
  • Y10T137/8342 - Liquid level responsive indicator, recorder or alarm

• US Classifications

  • 137 - Fluid handling