Pump dispenser having a plunger seal
    32.
    发明授权
    Pump dispenser having a plunger seal 有权
    泵分配器具有柱塞密封

    公开(公告)号:US06315162B1

    公开(公告)日:2001-11-13

    申请号:US09713989

    申请日:2000-11-15

    CPC classification number: B05B11/306 B05B11/3001

    Abstract: The dispenser comprises a plunger operating in a hollow body. The body has formed adjacent its upper end with 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. The flap is backed by an outward step in the diameter of the body.

    Abstract translation: 分配器包括操作在中空体中的柱塞。 主体在其上端附近形成向内和向下的环形挡板。 皮瓣下面有一个通气孔。 柱塞杆具有导致在锥形区域之上更大直径的锥形区域。 当柱塞处于其锁定位置时,翼片与较大的直径协作以提供通气密封。 皮瓣由身体直径的向外延伸。

    Pump dispenser having a plunger seal
    33.
    发明授权
    Pump dispenser having a plunger seal 有权
    泵分配器具有柱塞密封

    公开(公告)号:US06173863B1

    公开(公告)日:2001-01-16

    申请号:US09369873

    申请日:1999-08-09

    CPC classification number: B05B11/306 B05B11/3001

    Abstract: 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.

    Abstract translation: 分配器包括操作在中空体中的柱塞。 身体在其上端附近形成向内和向下的环形瓣。 皮瓣下面有一个通气孔。 柱塞杆具有导致在锥形区域之上更大直径的锥形区域。 当柱塞处于其锁定位置时,翼片与较大的直径协作以提供通气密封。

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