2151658

Information

• Patent Grant
• 2151658

• References
• Source

• Patent Number

  2,151,658

• Date Filed

  Not available

• Date Issued

  Tuesday, March 21, 1939
  86 years ago

• CPC

  • F04F5/469 - for steam engines
  • Y10T137/86928 - Sequentially progressive opening or closing of plural valves
  • Y10T137/86976 - First valve moves second valve

• US Classifications

  • 417 - Pumps
  • 137 - Fluid handling
  • 251 - Valves and valve actuation