3239012

Information

• Patent Grant
• 3239012

• References
• Source

• Patent Number

  3,239,012

• Date Filed

  Not available

• Date Issued

  Tuesday, March 8, 1966
  58 years ago

• CPC

  • A01B63/112 - to control draught load
  • A01B63/10 - operated by hydraulic or pneumatic means
  • A01B63/1006 - the hydraulic or pneumatic means structurally belonging to the tractor
  • A01B63/1117 - using a hitch position sensor
  • B60K17/10 - of fluid gearing
  • F15B2211/20538 - constant capacity
  • F15B2211/30505 - Non-return valves
  • F15B2211/40515 - with variable throttles or orifices
  • F15B2211/41527 - being connected to an output member and a directional control valve
  • F15B2211/423 - manually
  • F15B2211/45 - Control of bleed-off flow
  • F15B2211/50518 - using pressure relief valves
  • F15B2211/50536 - using unloading valves controlling the supply pressure by diverting fluid to the return line
  • F15B2211/523 - manually
  • F15B2211/528 - actuated by fluid pressure
  • F15B2211/55 - for limiting a pressure up to a maximum pressure
  • F15B2211/615 - Filtering means
  • F15B2211/66 - Temperature control methods
  • F15B2211/7052 - Single-acting output members
  • F15B2211/7121 - the chambers being connected in series
  • F15B2211/76 - Control of force or torque of the output member

• US Classifications

  • 172 - Earth working
  • 060 - Power plants