3431940

Information

• Patent Grant
• 3431940

• References
• Source

• Patent Number

  3,431,940

• Date Filed

  Not available

• Date Issued

  Tuesday, March 11, 1969
  56 years ago

• CPC

  • G05D16/208 - using a combination of controlling means as defined in G05D16/2013 and G05D16/2066
  • E03B5/02 - arranged in buildings
  • F04D15/0072 - Installation or systems with two or more pumps, wherein the flow path through the stages can be changed
  • Y10T137/86163 - Parallel

• US Classifications

  • 134 - Cleaning and liquid contact with solids
  • 137 - Fluid handling