2140328

Information

• Patent Grant
• 2140328

• References
• Source

• Patent Number

  2,140,328

• Date Filed

  Not available

• Date Issued

  Tuesday, December 13, 1938
  86 years ago

• CPC

  • F04B39/1033 - annular disc valves
  • F04B39/0016 - with valve arranged in the piston
  • Y10T137/7832 - Plural valves biased closed
  • Y10T137/7863 - Stop
  • Y10T137/7924 - Spring under tension

• US Classifications

  • 137 - Fluid handling
  • 417 - Pumps