发明名称 |
Pump position retainer apparatus |
摘要 |
An apparatus for preventing free descent of a motor-pump unit. The motor-pump unit is mounted within a manure-containing pit for vertical sliding movement on a fixed column, and an elevating mechanism is employed for raising and lowering the pump within the pit and includes a cable having one end which is coiled on a drum while the opposite end of the cable is connected to the motor-pump unit. The weight of the motor-pump unit normally applies substantial tension to the cable. A mechanism is incorporated which is responsive to slackening of the cable and acts to arrest free descent of the motor-pump unit, as well as discontinuing operation of the cable drum mechanism.
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申请公布号 |
US4511257(A) |
申请公布日期 |
1985.04.16 |
申请号 |
US19830510214 |
申请日期 |
1983.07.01 |
申请人 |
A. O. SMITH HARVESTORE PRODUCTS, INC. |
发明人 |
ROBERTS, JAMES R. |
分类号 |
B01F7/00;(IPC1-7):B01F5/12 |
主分类号 |
B01F7/00 |
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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