发明名称 |
PLUNGER MECHANISM FOR USE IN A GLASSWARE FORMING MACHINE |
摘要 |
The plunger mechanism is for use in moving a plunger into or out of a mould cavity and has a piston movable in a cylinder with a piston rod projecting from the piston. A plunger can be mounted on the piston rod. A passage passes through the piston and the piston rod and communicates with a chamber in the plunger or with the mould cavity. A tube which can be connected to a source of air under pressure or to a vacuum source passes through the cylinder and enters the passage. The gap between the passage and the tube is sealed by an inwardly-contracting ring with an overlapping joint which makes sealing contact around the tube. A ring of resilient material may encircle the inwardly-contracting ring to seal the gap between the inwardly-contracting ring and the wall of a recess in which it is mounted. |
申请公布号 |
DE3566795(D1) |
申请公布日期 |
1989.01.19 |
申请号 |
DE19853566795 |
申请日期 |
1985.04.01 |
申请人 |
EMHART INDUSTRIES, INC. |
发明人 |
TRAHAN, ALBERT JOSEPH;VAJDA, VLADIMIR |
分类号 |
C03B9/197;C03B9/193;C03B9/34;(IPC1-7):C03B9/193 |
主分类号 |
C03B9/197 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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