3770240

Information

• Patent Grant
• 3770240

• References
• Source

• Patent Number

  3,770,240

• Date Filed

  Not available

• Date Issued

  Tuesday, November 6, 1973
  52 years ago

• CPC

  • F16K17/10 - with auxiliary valve for fluid operation of the main valve
  • F16K21/10 - with hydraulic brake cylinder acting on the closure member
  • G05D7/0193 - using hydraulic or pneumatic amplifiers, relays or transmitters
  • Y10T137/7788 - Pressures across fixed choke

• US Classifications

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