3173442

Information

• Patent Grant
• 3173442

• References
• Source

• Patent Number

  3,173,442

• Date Filed

  Not available

• Date Issued

  Tuesday, March 16, 1965
  59 years ago

• CPC

  • E03F5/042 - Arrangements of means against overflow of water, backing-up from the drain
  • E03F5/02 - Manhole shafts or other inspection chambers snow-filling openings accessories
  • E03F5/0407 - Floor drains for indoor use
  • F16L55/1155 - fixed by rotating a limited amplitude
  • E03F2005/0417 - in the form of a valve
  • Y10T137/4508 - Seats vertically up
  • Y10T137/7504 - Removable valve head and seat unit

• US Classifications

  • 137 - Fluid handling
  • 220 - Receptacles