3203445

Information

• Patent Grant
• 3203445

• References
• Source

• Patent Number

  3,203,445

• Date Filed

  Not available

• Date Issued

  Tuesday, August 31, 1965
  59 years ago

• CPC

  • F01P11/0247 - Safety; Locking against opening
  • F01P11/0238 - with overpressure valves or vent valves
  • F01P2011/0252 - Venting before opening
  • Y10T137/7775 - Spring stop on supported valve stem
  • Y10T137/7877 - With means for retaining external means in bias opposing position

• US Classifications

  • 137 - Fluid handling
  • 220 - Receptacles