3874412

Information

• Patent Grant
• 3874412

• References
• Source

• Patent Number

  3,874,412

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1975
  49 years ago

• CPC

  • C02F1/42 - by ion-exchange
  • F16K31/48 - actuated by mechanical timing-device
  • Y10T74/115 - Plural, sequential, trip actuations
  • Y10T137/86405 - Repeating cycle
  • Y10T137/86445 - Plural, sequential, valve actuations
  • Y10T137/86726 - Valve with bypass connections

• US Classifications

  • 137 - Fluid handling
  • 074 - Machine element or mechanism
  • 210 - Liquid purification or separation