Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1976-09-13
1977-08-16
Moore, Christopher K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15385, 15386, A47L 526
Patent
active
040415686
ABSTRACT:
The disclosure relates to a small vacuum cleaner to be used by one hand of an operator and particularly for vacuum cleaning small areas and objects such as clothing or other areas such as furniture where lint or other foreign matter accumulates. The said vacuum cleaner comprises a centrifugal impeller mounted in a housing wherein a flexible portion of the impeller extends through an inlet opening in the centrifugal compressor and the flexible portion extends beyond the housing at the inlet opening such as to be capable of rubbing and flapping foreign matter loose from a surface being cleaned so that when the material is loosened it is entrained in the air stream going into the impeller housing through the inlet opening therein. The disclosure also relates to a novel impeller having its peripheral portion made of a flexible material and operating adjacent an inner annular wall of the compressor housing so that lint such as hair and other foreign matter may be rolled into a ball shaped mass and may be dumped out through the inlet opening of the housing when operation of the impeller has stopped and it is in a rest position.
REFERENCES:
patent: 935558 (1909-09-01), Spangler
patent: 1007888 (1911-11-01), Parker
patent: 2476537 (1949-07-01), Erickson
patent: 2578549 (1951-12-01), Hooban
patent: 2644189 (1953-07-01), Calvin
patent: 2809390 (1957-10-01), DeGotzen
patent: 3872539 (1975-03-01), Doyel
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