1830257

Information

• Patent Grant
• 1830257

• References
• Source

• Patent Number

  1,830,257

• Date Filed

  Not available

• Date Issued

  Tuesday, November 3, 1931
  93 years ago

• CPC

  • F04B5/02 - with double-acting pistons
  • F04B53/103 - Flat-annular type disc valves
  • F04B53/104 - the closure member being a rigid element oscillating around a fixed point
  • F04B53/124 - Oscillating valves

• US Classifications

  • 417 - Pumps