发明名称 |
Flexible coupling for downhole motor |
摘要 |
A flexible coupling for use in a down-hole motor assembly such as a positive displacement moineau motor is presented. The flexible coupling includes two sets of flexible joints. Each joint consists of two cylindrically shaped slipper couplings angularly offset by 90 degrees. Each slipper coupling is comprised of mating male and female members which are joined together by ball bearings positioned in arcuate grooves located along the cylindrical mating surface.
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申请公布号 |
US4982801(A) |
申请公布日期 |
1991.01.08 |
申请号 |
US19890293514 |
申请日期 |
1989.01.04 |
申请人 |
TELECO OILFIELD SERVICES INC. |
发明人 |
ZITKA, MARK D.;WELLS, GARY |
分类号 |
E21B4/02;E21B17/05;E21B17/20;F16D3/26;F16D3/44 |
主分类号 |
E21B4/02 |
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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