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发明公开
CN101893159A 用于注油枪和类似装置的随动包装单元 无效 - 撤回

用于注油枪和类似装置的随动包装单元
摘要：
本发明公开了用于注油枪的改进的随动包装单元。该单元包括一弹性材料的空心环形主体，该环形主体有限定主体中的一空腔的前壁、环形侧壁和后壁。刚性的前、后结构支撑件刚性地支撑该弹性密封件的前、后壁。该弹性密封件和前、后结构支撑件紧固在一起以防止分离并并形成一个单一的可以作为一个单元在随动杆上移动的随动结构。弹性密封件的环形侧壁在压力下可以沿径向弹性变形来紧密地密封注油枪的枪管的内表面或装填进注油枪的枪管内的管状油芯的内表面。
摘要（英）：

An improved follower packing unit for a grease gun is disclosed. The unit includes a hollow annular body of elastomeric material having a front wall, an annular side wall and a rear wall defining a cavity in the body. Rigid front and back structural supports rigidly support the front and rear walls of the elastomeric seal. The elastomeric seal and the front and back structural supports are fastened together to prevent separation and to form a unitary follower structure movable as a unit on a follower rod. The annular side wall of the elastomeric seal is resiliently deformable under pressure in a radial direction for sealing tightly against an interior surface of the barrel of the grease gun or against the interior surface of a tubular cartridge loaded in the barrel of the gun.

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