Pump dispenser having a plunger seal

Details Pump dispenser having a plunger seal Pump dispenser having a plunger seal

B - Operations, Transporting

65

D

B65D 83/76 (2006.01) B05B 11/00 (2006.01) B05C 17/01 (2006.01) B65D 47/34 (2006.01)

Patent

CA 2314602

The dispenser comprises a plunger operating in a hollow body. The body has formed adjacent its upper end an inward and downward annular flap. Below the flap is a vent hole. The plunger stem has a tapered zone leading to a greater diameter above the tapered zone. When the plunger is in its lockdown position, the flap cooperates with the greater diameter to provide a vent seal .

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