• All sections
• F - Mechanical engineeringlightingheatingweaponsblasting
• F22D - Preheating, or accumulating preheated, feed-water for steam generationfeed-water supply for steam generationcontrolling water level for steam generationauxiliary devices for promoting water circulation within steam boilers
• F22D 5/06 - Controlling water feed or water levelAutomatic water feeding or water-level regulators with receptacles external to, but in free communication with, the boilers and adapted to move up and down in accordance with change in water level

Patent holdings for IPC class F22D 5/06

Total number of patents in this class: 2

10-year publication summary

Principal owners for this class