Dispenser assembly for liquids comprising flexible barrel and rigid plunger

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专利权人:

Tessy Plastics Corporation

发明人:

David Young

申请号：

US14546489

公开号：

US09849248B2

申请日:

2014.11.18

申请国别(地区):

US

年份:

2017

代理人:

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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