- 专利标题： Dispenser assembly for liquids comprising flexible barrel and rigid plunger
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申请号： US14546489申请日： 2014-11-18
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公开(公告)号： US09849248B2公开(公告)日： 2017-12-26
- 发明人: David Young
- 申请人： Tessy Plastics Corporation
- 申请人地址： US NY Elbridge
- 专利权人： Tessy Plastics Corporation
- 当前专利权人： Tessy Plastics Corporation
- 当前专利权人地址： US NY Elbridge
- 代理机构： Barclay Damon LLP
- 主分类号： A61M5/315
- IPC分类号： A61M5/315
摘要：
A dispenser assembly is provided that has a rigid plunger with a ring-shaped protrusion. The protrusion contacts the inner wall of a flexible barrel to form a liquid-tight seal. Advantageously, the dispenser assembly does not require additional components, such as o-rings, and can be fabricated by injection molding techniques.
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