3320970

Information

• Patent Grant
• 3320970

• References
• Source

• Patent Number

  3,320,970

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1967
  57 years ago

• CPC

  • F04F1/02 - using both positively and negatively pressurised fluid medium
  • F16K21/20 - by means making use of air-suction through an opening closed by the rising liquid
  • G05D9/04 - with auxiliary non-electric power
  • Y10T137/7339 - By weight of accumulated fluid
  • Y10T137/7374 - Flexible diaphragm valve

• US Classifications

  • 137 - Fluid handling
  • 073 - Measuring and testing
  • 417 - Pumps