3749290

Information

• Patent Grant
• 3749290

• References
• Source

• Patent Number

  3,749,290

• Date Filed

  Not available

• Date Issued

  Tuesday, July 31, 1973
  51 years ago

• CPC

  • B05B11/303 - without substantial movement of the nozzle in the direction of the pressure stroke
  • F04B43/0018 - the periphery of the flexible member being not fixed to the pump-casing, but acting as a valve
  • F04B43/08 - having tubular flexible members
  • G01F11/08 - of the diaphragm or bellows type
  • B05B11/0016 - Venting means

• US Classifications

  • 222 - Dispensing