3906991

Information

• Patent Grant
• 3906991

• References
• Source

• Patent Number

  3,906,991

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1975
  49 years ago

• CPC

  • F15B13/015 - using an enclosed pilot flow valve
  • F16K15/18 - with actuating mechanism Combined check valves and actuated valves
  • Y10T137/86968 - With balancing chamber
  • Y10T137/86984 - Actuator moves both valves

• US Classifications

  • 137 - Fluid handling
  • 091 - Motors: expansible chamber type
  • 251 - Valves and valve actuation