3687580

Information

• Patent Grant
• 3687580

• References
• Source

• Patent Number

  3,687,580

• Date Filed

  Not available

• Date Issued

  Tuesday, August 29, 1972
  52 years ago

• CPC

  • F03C7/00 - Engines of flexible-wall type
  • F04B43/0072 - of tubular flexible members
  • F04B43/123 - using an excenter as the squeezing element

• US Classifications

  • 418 - Rotary expansible chamber devices
  • 417 - Pumps