| 发明名称 |
Method and apparatus for removing sludge from an enclosure |
| 摘要 |
A hollow truncated cone shaped device for loosening and vacuuming solid waste and liquid out of a depressed enclosure such as a pit.
|
| 申请公布号 |
US5695649(A) |
申请公布日期 |
1997.12.09 |
| 申请号 |
US19960677602 |
申请日期 |
1996.07.08 |
| 申请人 |
BECKTOLD ENTERPRISES INC. |
发明人 |
BECKTOLD, BRYON EDWARD |
| 分类号 |
B01D29/23;(IPC1-7):B01D37/00 |
主分类号 |
B01D29/23 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
