发明名称 SELF-VENTING MOVABLE SEAL AND PLUNGER
摘要 <p>A self-venting movable seal and plunger assembly for use in dispensing materials from cylindrical bodies is disclosed. The assembly includes a self-venting movable seal and a plunger tip that seats within a plunger tip pocket in the movable seal, occluding a vent in the movable seal. Methods of using the assembly to dispense materials are also disclosed.</p>
申请公布号 WO2003057281(A1) 申请公布日期 2003.07.17
申请号 US2002038907 申请日期 2002.12.05
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