2991761

Information

• Patent Grant
• 2991761

• References
• Source

• Patent Number

  2,991,761

• Date Filed

  Not available

• Date Issued

  Tuesday, July 11, 1961
  63 years ago

• CPC

  • B23Q5/033 - driven essentially by fluid pressure
  • F15B11/04 - for controlling the speed
  • F16K11/20 - operated by separate actuating members
  • F15B2211/20538 - constant capacity
  • F15B2211/30525 - Directional control valves
  • F15B2211/327 - electrically or electronically
  • F15B2211/40515 - with variable throttles or orifices
  • F15B2211/41527 - being connected to an output member and a directional control valve
  • F15B2211/41554 - being connected to a return line and a directional control valve
  • F15B2211/426 - electrically or electronically
  • F15B2211/45 - Control of bleed-off flow
  • F15B2211/50554 - the pressure control means controlling a pressure downstream of the pressure control means
  • F15B2211/5156 - being connected to a return line and a directional control valve
  • F15B2211/7054 - Having equal piston areas
  • F15B2211/75 - Control of speed of the output member

• US Classifications

  • 091 - Motors: expansible chamber type