Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2006-05-23
2006-05-23
Till, Terrence R. (Department: 1744)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S350000
Reexamination Certificate
active
07047594
ABSTRACT:
A cyclonic vacuum cleaner having a simple structure with low airflow leakage and excellent maintainability despite its long suction passage. A dust-collecting portion11includes a cyclonic portion14which is approximately cylinder-shaped, having a bottom and an introducing portion15for introducing dust-laden airflow to the cyclonic portion14.The cyclonic portion14and the introducing portion15are integrally formed and then a vortex flow generating member21is provided in the dust-collecting portion11.Thus, the structure of the dust-collecting portion can be simplified and thus the dusts can be dumped by detaching the dust-collecting portion11together with the introducing portion15.Consequently, maintenance can be easily performed. Further, as the number of joints can be reduced, possibility of airflow leakage within the suction passage is reduced, so that dust-collecting performance can be enhanced.
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Akerman & Senterfitt
Till Terrence R.
Twinbird Corporation
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