2628569

Information

• Patent Grant
• 2628569

• References
• Source

• Patent Number

  2,628,569

• Date Filed

  Not available

• Date Issued

  Tuesday, February 17, 1953
  72 years ago

• CPC

  • G01F11/021 - of the piston type
  • A47K5/1204 - by means of a rigid dispensing chamber and pistons
  • B05B11/3015 - actuated without substantial movement of the nozzle in the direction of the pressure stroke
  • B05B11/307 - Gate valves; Sliding valves
  • B05B11/3097 - with means for sucking back the liquid or other fluent material in the nozzle after a dispensing stroke
  • B05B11/3098 - Air being permanently entrapped or sucked into the liquid pump chamber

• US Classifications

  • 417 - Pumps
  • 092 - Expansible chamber devices
  • 222 - Dispensing