2664859

Information

• Patent Grant
• 2664859

• References
• Source

• Patent Number

  2,664,859

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1954
  71 years ago

• CPC

  • F15B11/076 - with pneumatic drive or displacement and speed control or stopping by hydraulic braking
  • F15B2211/216 - the pressure sources being pneumatic-to-hydraulic converters
  • F15B2211/30525 - Directional control valves
  • F15B2211/40515 - with variable throttles or orifices
  • F15B2211/40584 - the flow control means arranged in parallel with a check valve
  • F15B2211/41581 - being connected to an output member and a return line
  • F15B2211/421 - mechanically
  • F15B2211/46 - Control of flow in the return lin
  • F15B2211/473 - without restriction in the reverse direction
  • F15B2211/7055 - having more than two chambers
  • F15B2211/75 - Control of speed of the output member

• US Classifications

  • 092 - Expansible chamber devices
  • 188 - Brakes