3622251

Information

• Patent Grant
• 3622251

• References
• Source

• Patent Number

  3,622,251

• Date Filed

  Not available

• Date Issued

  Tuesday, November 23, 1971
  53 years ago

• CPC

  • F04B45/04 - having plate-like flexible members
  • F04B27/053 - with an actuating element at the inner ends of the cylinders
  • F04B43/0036 - the flexible member being formed as an O-ring
  • F04B43/0045 - with a number of independent working chambers which are actuated successively by one mechanism
  • F04B53/164 - Stoffing boxes

• US Classifications

  • 417 - Pumps
  • 074 - Machine element or mechanism
  • 092 - Expansible chamber devices