1878220

Information

• Patent Grant
• 1878220

• References
• Source

• Patent Number

  1,878,220

• Date Filed

  Not available

• Date Issued

  Tuesday, September 20, 1932
  92 years ago

• CPC

  • F04B43/02 - having plate-like flexible members
  • F04B9/1056 - with fluid-actuated inlet or outlet valve
  • F04B43/113 - the actuating fluid being controlled by at least one valve

• US Classifications

  • 417 - Pumps
  • 092 - Expansible chamber devices