| 摘要 |
<p>A disposable dust receptacle (10) can be formed from a foldable blank. It ha s flaps (20, 22, 26, 28) that close an open end (21) so that the receptacle (1 0) closes in part automatically as the receptacle is removed from a cleaning machine. The receptacle can be constructed from a biodegradable material, an d is most suitable for use with cleaning machines (60) having rotary brushes (62).</p> |
