发明名称 |
REVERSE ROTATION PROTECTION FOR BOREHOLE PUMPS |
摘要 |
A reverse rotation protection for borehole pumps is disposed in a drive head. The reverse rotation protection includes a housing and a clamping tool for securing a polished rod. The clamping tool includes at least two exchangeable contact elements with which the polished rod can be fixed releasably. |
申请公布号 |
ZA201308016(B) |
申请公布日期 |
2014.07.30 |
申请号 |
ZA20130008016 |
申请日期 |
2013.10.29 |
申请人 |
NETZSCH PUMPEN & SYSTEME GMBH |
发明人 |
CEMIN, ANGELO;ZUBER ALEXANDER;DITTRICH, JOCHEN |
分类号 |
E21B;F04B;F16D |
主分类号 |
E21B |
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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