3890991

Information

• Patent Grant
• 3890991

• References
• Source

• Patent Number

  3,890,991

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1975
  49 years ago

• CPC

  • F16K3/207 - by means of hydraulic forces
  • F15B1/02 - Installations or systems with accumulators
  • F16K3/20 - by movement of the seats
  • F16K31/52433 - with a streamlined or helically shaped valve member
  • F16K31/52475 - comprising a sliding valve
  • Y10T137/0318 - Processes

• US Classifications

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