3133475

Information

• Patent Grant
• 3133475

• References
• Source

• Patent Number

  3,133,475

• Date Filed

  Not available

• Date Issued

  Tuesday, May 19, 1964
  61 years ago

• CPC

  • H01H33/34 - hydraulic
  • F15B11/08 - with only one servomotor
  • F15B2211/212 - the pressure sources being accumulators
  • F15B2211/30505 - Non-return valves
  • F15B2211/30525 - Directional control valves
  • F15B2211/3111 - the pump port being closed in the centre position
  • F15B2211/31529 - having a single pressure source and a single output member
  • F15B2211/325 - actuated by an output member of the circuit
  • F15B2211/329 - actuated by fluid pressure
  • F15B2211/6355 - having valve means
  • F15B2211/67 - Methods for controlling pilot pressure
  • F15B2211/7052 - Single-acting output members
  • H01H2033/308 - comprising control and pilot valves

• US Classifications

  • 091 - Motors: expansible chamber type
  • 060 - Power plants
  • 200 - Electricity: circuit makers and breakers