| 发明名称 |
Submersible pump apparatus |
| 摘要 |
A submersible pump apparatus for admitting air into the low pressure vortex area of the pump to control the amount of liquid material discharged, and including an improved vent and spray system for venting air from the impeller and for directing liquid material onto the pump motor exterior for cooling.
|
| 申请公布号 |
US4488852(A) |
申请公布日期 |
1984.12.18 |
| 申请号 |
US19800213922 |
申请日期 |
1980.12.08 |
| 申请人 |
ENGINEERS SALES-SERVICE CO., INC. |
发明人 |
IVINS, EARL E.;IVINS, JOHN L. |
| 分类号 |
F04D13/08;F04D29/40;F04D29/58;(IPC1-7):F04B39/06 |
主分类号 |
F04D13/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
