3809506

Information

• Patent Grant
• 3809506

• References
• Source

• Patent Number

  3,809,506

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1974
  50 years ago

• CPC

  • F04B39/048 - Sealing between piston and carter being provided by a diaphragm
  • F04B53/102 - Disc valves
  • F04B53/105 - one flexible element oscillating around a fixed point
  • F16J15/52 - by means of sealing bellows or diaphragms
  • Y10S417/902 - Hermetically sealed motor pump unit

• US Classifications

  • 417 - Pumps
  • 092 - Expansible chamber devices