3920040

Information

• Patent Grant
• 3920040

• References
• Source

• Patent Number

  3,920,040

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1975
  49 years ago

• CPC

  • G05B11/44 - pneumatic only
  • G05D16/10 - the sensing element being a piston or plunger
  • Y10T137/7725 - Responsive to both high and low pressure or velocity
  • Y10T137/7728 - High pressure cut-off
  • Y10T137/7768 - Pilot controls supply to pressure chamber

• US Classifications

  • 137 - Fluid handling