发明名称 |
Drainage element and method and machine for making same |
摘要 |
The machine for making the drainage elements employs a forming collar about the delivery chute for the aggregate so as to form a continuously supplied strip of netting into a tube to receive the aggregate. The machine may be run on an automatic basis without a need to stop the machine in order to replenish the supply of netting. A pair of tapes are used to secure the longitudinal edges of the tape together, one tape located inside the tube and the other tape located outside the tube.
|
申请公布号 |
US2007081859(A1) |
申请公布日期 |
2007.04.12 |
申请号 |
US20050248754 |
申请日期 |
2005.10.12 |
申请人 |
BUSSEY HARRY JR;BUSSEY BUDDY H III |
发明人 |
BUSSEY HARRY JR.;BUSSEY BUDDY H.III |
分类号 |
E02B11/00 |
主分类号 |
E02B11/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|