发明名称 |
Controllable thread extractor device with an air passage connected to a vacuum source |
摘要 |
The present invention relates to a controllable thread extractor with an air passage connected to a vacuum source which includes a shaft passageway perpendicular to the air passage dividing the air passage into two sections, a ball is received in the shaft and means for actuating the ball to selectively open and close the air passage.
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申请公布号 |
US4258872(A) |
申请公布日期 |
1981.03.31 |
申请号 |
US19780968487 |
申请日期 |
1978.12.11 |
申请人 |
SCHUBERT & SALZER |
发明人 |
HUSGES, GERD;MAYER, WALTER |
分类号 |
D01H5/66;F16K1/14;F16K31/08;(IPC1-7):B65H51/16 |
主分类号 |
D01H5/66 |
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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