2638120

Information

• Patent Grant
• 2638120

• References
• Source

• Patent Number

  2,638,120

• Date Filed

  Not available

• Date Issued

  Tuesday, May 12, 1953
  71 years ago

• CPC

  • H01H33/555 - Protective arrangements responsive to abnormal fluid pressure, liquid level or liquid displacement
  • F16K11/20 - operated by separate actuating members
  • H02H5/08 - responsive to abnormal fluid pressure, liquid level or liquid displacement
  • H01H35/18 - Switches operated by change of liquid level or of liquid density
  • H01H35/40 - actuated by devices allowing continual flow of fluid
  • Y10T137/87515 - Mechanical movement between actuator and valve
  • Y10T137/87539 - Having guide or restrictor
  • Y10T137/88062 - Coaxial oppositely directed seats

• US Classifications

  • 137 - Fluid handling
  • 251 - Valves and valve actuation