3680579

Information

• Patent Grant
• 3680579

• References
• Source

• Patent Number

  3,680,579

• Date Filed

  Not available

• Date Issued

  Tuesday, August 1, 1972
  52 years ago

• CPC

  • B67D7/367 - the float acting pneumatically on a shut-off valve
  • G01F23/04 - by dip members
  • G01F23/161 - for discrete levels
  • G01F23/167 - with mechanic or fluid indicating or recording
  • G01F23/585 - using pneumatically or hydraulically actuated indicating means
  • Y10T137/2065 - Responsive to condition external of system

• US Classifications

  • 137 - Fluid handling
  • 073 - Measuring and testing
  • 116 - Signals and indicators