发明名称 |
A PUMP DRIVE FOR A DEEP WELL PUMP |
摘要 |
<p>A deep well pump includes a cylinder having a foot valve and a valved piston which is movable over a given range in the cylinder. The cylinder is preferably formed of plastic, extends above ground and below the range of movement of the piston, and is of constant diameter over its length. The piston rod also extends above ground and is of variable length to vary the range of movement of the piston. The foot valve structure and piston structure are interchangeable and connected together during operation by a slackened cable.</p> |
申请公布号 |
IN155509(B) |
申请公布日期 |
1985.02.09 |
申请号 |
IN1976CA45719 |
申请日期 |
1976.03.15 |
申请人 |
PREUSSAG AKTIENGESELLSCHAFT |
发明人 |
JOURNEY, WILLIAM KENNETH |
分类号 |
F04B47/02;F04B53/10;F04B53/12;F04B53/16;(IPC1-7):F04B47/00 |
主分类号 |
F04B47/02 |
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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