3789872

Information

• Patent Grant
• 3789872

• References
• Source

• Patent Number

  3,789,872

• Date Filed

  Not available

• Date Issued

  Tuesday, February 5, 1974
  51 years ago

• CPC

  • F16K1/2007 - specially adapted operating means therefor
  • F16K1/2078 - Sealing means for the axis of rotation
  • F16K15/03 - with a hinged closure member
  • F16K15/181 - for check valves with a hinged closure member
  • F16K21/10 - with hydraulic brake cylinder acting on the closure member
  • Y10T137/785 - With retarder or dashpot
  • Y10T137/8242 - Electrical

• US Classifications

  • 137 - Fluid handling
  • 251 - Valves and valve actuation