发明名称 |
Device for applying free-flowing material to a substrate moveable with respect thereto |
摘要 |
A device for dispensing fluid material onto a substrate including a base body with a flow channel for receiving the fluid material and a movable valve body positioned in the flow channel. The valve body is movable in a downstream direction into an open position to release a flow of the fluid material into the flow channel and is movable in an upstream direction into a closed position to interrupt the flow of the fluid material into the flow channel. A drive device moves the valve body between the open position and the closed position. A cylindrical chamber is positioned in the flow channel and the valve body includes a piston movable within the cylindrical chamber. The piston is sealed within the cylindrical chamber in such a way that when the piston moves in a first direction within the cylindrical chamber, the fluid material is displaced from the flow channel and when the piston is moved in a second direction opposite to the first direction, the fluid material is drawn into the flow channel.
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申请公布号 |
US7147136(B2) |
申请公布日期 |
2006.12.12 |
申请号 |
US20040485657 |
申请日期 |
2004.08.30 |
申请人 |
NORDSON CORPORATION |
发明人 |
BURMESTER THOMAS;LUEBBECKE KAI |
分类号 |
G01F11/00;B05C5/02;B05C11/10 |
主分类号 |
G01F11/00 |
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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