1693273

Information

• Patent Grant
• 1693273

• References
• Source

• Patent Number

  1,693,273

• Date Filed

  Not available

• Date Issued

  Tuesday, November 27, 1928
  96 years ago

• CPC

  • G05D16/10 - the sensing element being a piston or plunger
  • Y10T137/0374 - For regulating boiler feed water level
  • Y10T137/3115 - Gas pressure storage over or displacement of liquid
  • Y10T137/7761 - Electrically actuated valve
  • Y10T137/7762 - Fluid pressure type
  • Y10T137/8225 - Position or extent of motion indicator
  • Y10T137/86767 - Spool

• US Classifications

  • 137 - Fluid handling
  • 200 - Electricity: circuit makers and breakers
  • 251 - Valves and valve actuation
  • 318 - Electricity: motive power systems
  • 340 - Communications: electrical