3818801

Information

• Patent Grant
• 3818801

• References
• Source

• Patent Number

  3,818,801

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  50 years ago

• CPC

  • F15B11/024 - by means of differential connection of the servomotor lines
  • B29C45/6771 - the connection being provided within the clamping cylinder
  • B30B15/161 - controlling the ram speed and ram pressure
  • F15B11/16 - with two or more servomotors
  • F15B15/1447 - Pistons; Piston to piston rod assemblies
  • F15B15/149 - Fluid interconnections
  • F15B15/202 - Externally-operated valves mounted in or on the actuator
  • F15B15/204 - Control means for piston speed or actuating force without external control
  • F15B2211/20515 - Electric motor
  • F15B2211/20546 - variable capacity
  • F15B2211/20561 - reversible
  • F15B2211/20576 - with multiple pumps
  • F15B2211/30505 - Non-return valves
  • F15B2211/30525 - Directional control valves
  • F15B2211/3133 - Regenerative position connecting the working ports or connecting the working ports to the pump
  • F15B2211/31588 - having a single pressure source and multiple output members
  • F15B2211/31594 - having multiple pressure sources and multiple output members
  • F15B2211/327 - electrically or electronically
  • F15B2211/613 - Feeding circuits
  • F15B2211/625 - Accumulators
  • F15B2211/7107 - the output members being mechanically linked
  • F15B2211/7128 - the chambers being connected in parallel
  • F15B2211/75 - Control of speed of the output member

• US Classifications

  • 091 - Motors: expansible chamber type
  • 060 - Power plants