3333549

Information

• Patent Grant
• 3333549

• References
• Source

• Patent Number

  3,333,549

• Date Filed

  Not available

• Date Issued

  Tuesday, August 1, 1967
  57 years ago

• CPC

  • B05B11/3074 - located outside pump chambers
  • B05B1/3431 - the channels being formed at the interface of cooperating elements
  • B05B11/3004 - comprising a movable cylinder and a stationary piston
  • B05B11/3039 - the outlet valve being mechanically opened after a defined accumulation stroke
  • B05B11/3098 - Air being permanently entrapped or sucked into the liquid pump chamber

• US Classifications

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