3424057

Information

• Patent Grant
• 3424057

• References
• Source

• Patent Number

  3,424,057

• Date Filed

  Not available

• Date Issued

  Tuesday, January 28, 1969
  55 years ago

• CPC

  • F15B11/17 - using two or more pumps
  • B30B15/161 - controlling the ram speed and ram pressure
  • F15B11/022 - in which a rapid approach stroke is followed by a slower, high-force working stroke
  • F16K11/07 - with cylindrical slides
  • F15B2211/20584 - Combinations of pumps with high and low capacity
  • F15B2211/20592 - Combinations of pumps for supplying high and low pressure
  • F15B2211/3122 - Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
  • F15B2211/31535 - having multiple pressure sources and a single output member
  • F15B2211/31582 - having multiple pressure sources and a single output member
  • F15B2211/56 - Control of an upstream pressure
  • F15B2211/775 - Combined control
  • Y10T137/2605 - Pressure responsive

• US Classifications

  • 091 - Motors: expansible chamber type
  • 060 - Power plants
  • 137 - Fluid handling