2189991

Information

• Patent Grant
• 2189991

• References
• Source

• Patent Number

  2,189,991

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1940
  85 years ago

• CPC

  • F16K31/18 - actuated by a float
  • Y10T137/7407 - With counter-balance
  • Y10T137/7413 - Level adjustment or selection means
  • Y10T137/7426 - Float co-axial with valve or port
  • Y10T137/8342 - Liquid level responsive indicator, recorder or alarm

• US Classifications

  • 137 - Fluid handling