Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1982-01-21
1984-01-24
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
A47L 530
Patent
active
044267517
ABSTRACT:
A vacuum cleaner nozzle having a front suction inlet and a suction passage. A first brush is rotatably mounted to the nozzle at the suction inlet, and a second brush is rotatably mounted to the nozzle adjacent the first brush at the suction inlet. A first transfer passage extends from the suction inlet adjacent the first brush for passing material dislodged by the first brush to the suction passage. A second transfer passage extends from the suction inlet adjacent the second brush for transferring material from the second brush to the second transfer passage. In one form, the brushes are rotated by separate drive means, and in another form, one of the brushes is rotated by drive means and is coupled to the other brush for rotation thereof. The brushes, in the illustrated embodiment, rotate in opposite directions so that a brush is brushing forwardly relative to the movement of the vacuum cleaner and either of opposite directions of movement thereof. The transfer passages are arranged to open generally tangentially to the brushes for improved transfer of material thereinto. Portions of the walls of the structure are disposed to strip from the brushes material clinging to the periphery thereof at the entrance to the transfer passages.
REFERENCES:
patent: 1268963 (1918-06-01), Gray
patent: 1417768 (1922-05-01), Radimak
patent: 1891504 (1932-12-01), Smellie
patent: 2102645 (1937-12-01), Replogle
patent: 2210950 (1940-08-01), Replogle
patent: 2651803 (1953-09-01), Browne
patent: 3220043 (1965-11-01), Lampe
patent: 3624861 (1971-12-01), Freheit
patent: 4267617 (1981-05-01), Brown et al.
Moore Chris K.
Whirlpool Corporation
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