发明名称 |
Rotary pump assembly container |
摘要 |
A pump assembly wherein fluid under pressure in a pump housing is prevented from escaping around the drive shaft of the pump by a seal which is held in place by the combination of a spring and fluid pressure applied through a diaphragm from the interior of the pump housing.
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申请公布号 |
US4384820(A) |
申请公布日期 |
1983.05.24 |
申请号 |
US19810302643 |
申请日期 |
1981.09.15 |
申请人 |
SIMS, JAMES O. |
发明人 |
SIMS, JAMES O. |
分类号 |
F04D29/10;F16J15/36;F16J15/40;(IPC1-7):F01D11/00 |
主分类号 |
F04D29/10 |
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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