3631894

Information

• Patent Grant
• 3631894

• References
• Source

• Patent Number

  3,631,894

• Date Filed

  Not available

• Date Issued

  Tuesday, January 4, 1972
  53 years ago

• CPC

  • F16K1/54 - Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
  • F02N7/08 - the engines being of rotary type
  • F15B11/068 - with valves for gradually putting pneumatic systems under pressure
  • F16K31/1221 - one side of the piston being spring-loaded
  • F15B2211/40515 - with variable throttles or orifices
  • F15B2211/428 - actuated by fluid pressure
  • F15B2211/455 - Control of flow in the feed line
  • F15B2211/6355 - having valve means
  • F15B2211/755 - Control of acceleration or deceleration of the output member
  • Y10T137/86984 - Actuator moves both valves

• US Classifications

  • 137 - Fluid handling