| 发明名称 |
Method for locking a telescopic suction tube inner and outer tubes has a longitudinal groove in the inner tube with holes in which a ball in a control block on the outer tube engages |
| 摘要 |
<p>The inner tube (1) has a recessed groove (13) along part of the outer surface in which a number of holes (11) are placed at regular intervals into which a ball (7) engages to prevent further extension. The ball is releasable by sliding a control (8) on the outer tube (2) to disengage a locking arm (6).</p> |
| 申请公布号 |
DE202005013078(U1) |
申请公布日期 |
2005.11.24 |
| 申请号 |
DE20052013078U |
申请日期 |
2005.08.18 |
| 申请人 |
TONG, SAMMY FAI SAI |
发明人 |
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| 分类号 |
A47L9/00;A47L9/24;(IPC1-7):A47L9/00 |
主分类号 |
A47L9/00 |
| 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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