3898915

Information

• Patent Grant
• 3898915

• References
• Source

• Patent Number

  3,898,915

• Date Filed

  Not available

• Date Issued

  Tuesday, August 12, 1975
  49 years ago

• CPC

  • F15B11/08 - with only one servomotor
  • B66F9/22 - Hydraulic devices or systems
  • F15B15/1433 - End caps
  • F15B15/1447 - Pistons; Piston to piston rod assemblies
  • F15B2211/50563 - the pressure control means controlling a differential pressure
  • F15B2211/5153 - being connected to an output member and a directional control valve
  • F15B2211/528 - actuated by fluid pressure
  • F15B2211/57 - Control of a differential pressure
  • F15B2211/5753 - for closing a valve
  • F15B2211/7053 - Double-acting output members

• US Classifications

  • 091 - Motors: expansible chamber type
  • 092 - Expansible chamber devices