3307492

Information

• Patent Grant
• 3307492

• References
• Source

• Patent Number

  3,307,492

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1967
  58 years ago

• CPC

  • F04B43/023 - double acting plate-like flexible member
  • F04B11/0033 - with a mechanical spring
  • F04B43/0036 - the flexible member being formed as an O-ring
  • F04B53/107 - the opening normally being closed by a fixed element
  • F04B53/123 - Flexible valves
  • F04B53/164 - Stoffing boxes

• US Classifications

  • 417 - Pumps
  • 092 - Expansible chamber devices