2989988

Information

• Patent Grant
• 2989988

• References
• Source

• Patent Number

  2,989,988

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1961
  63 years ago

• CPC

  • C02F1/42 - by ion-exchange
  • F16K31/04 - using a motor
  • Y10T137/86453 - Plural trips or trip actuations
  • Y10T137/86879 - Reciprocating valve unit

• US Classifications

  • 137 - Fluid handling
  • 200 - Electricity: circuit makers and breakers
  • 210 - Liquid purification or separation
  • 251 - Valves and valve actuation