发明名称 |
Applicator head for dosed dispensation of fluid mediums |
摘要 |
The present invention comprises an applicator head for the dosed dispensation of fluid mediums wherein a valve member and a valve drive are arranged within a casing. The valve drive comprises at least one piezoelectric element connected with a voltage supply and comprising several parallel, juxtaposed piezoelectric stacks which are flexibly mounted. The present invention provides a piezoelectrically driven applicator head which is simple and economical to manufacture, and which is usable not only in the low-temperature range but also in the high-temperature range. The valve drive also includes a rocker member which is pivotably mounted at a joint region, a free end of the rocker member is fixedly connected to the valve member, and the piezoelectric element comprises two piezoelectric stacks which are operatively connected to the joint region of the rocker member upon opposite sides of an axis extending perpendicularly through the joint region and wherein the piezoelectric stacks are adapted to be alternately actuated with respect to the rocker member.
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申请公布号 |
US5720417(A) |
申请公布日期 |
1998.02.24 |
申请号 |
US19950415830 |
申请日期 |
1995.04.03 |
申请人 |
ITW DYNATEC GMBH KLEBETECHNIK |
发明人 |
WURTH, HEIKO;REUTER, MARTIN |
分类号 |
B05C5/00;B05C5/02;F16K31/00;(IPC1-7):B67D5/62 |
主分类号 |
B05C5/00 |
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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