3648721

Information

• Patent Grant
• 3648721

• References
• Source

• Patent Number

  3,648,721

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1972
  53 years ago

• CPC

  • G05D7/0173 - using pivoting sensing element acting as a valve mounted within the flow-path
  • F16K31/363 - the fluid acting on a piston
  • G05D7/0146 - the in-line sensing element being a piston or float without flexible member or spring
  • G05D7/018 - using rotary sensing element
  • G05D16/10 - the sensing element being a piston or plunger
  • Y10T137/7355 - In gravitating tank
  • Y10T137/86413 - Self-cycling

• US Classifications

  • 137 - Fluid handling