2990687

Information

• Patent Grant
• 2990687

• References
• Source

• Patent Number

  2,990,687

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1961
  63 years ago

• CPC

  • B30B15/165 - for pneumatically-hydraulically driven presses
  • F15B11/0325 - the fluid-pressure converter increasing the working force after an approach stroke
  • F15B2211/20576 - with multiple pumps
  • F15B2211/216 - the pressure sources being pneumatic-to-hydraulic converters
  • F15B2211/7052 - Single-acting output members
  • F15B2211/775 - Combined control

• US Classifications

  • 060 - Power plants