1456391

Information

• Patent Grant
• 1456391

• References
• Source

• Patent Number

  1,456,391

• Date Filed

  Not available

• Date Issued

  Tuesday, May 22, 1923
  101 years ago

• CPC

  • F16L55/045 - specially adapted to prevent or minimise the effects of water hammer
  • Y10T137/2602 - Flapper
  • Y10T137/3149 - Back flow prevention by vacuum breaking [e.g., anti-siphon devices]
  • Y10T137/7782 - With manual or external control for line valve

• US Classifications

  • 137 - Fluid handling
  • 138 - Pipes and tubular conduits