Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2007-03-06
2007-03-06
Redding, David (Department: 1744)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S383000, C015S023000, C015S052100, C015SDIG012
Reexamination Certificate
active
10657167
ABSTRACT:
A brush of a cleaner comprising: a rotation shaft rotatably supported at a lower surface of a body; a brush hub fixed to the rotation shaft; and brush hair mounted at an outer circumference surface of the brush hub for sweeping dust and contamination of a floor, wherein the brush hair is composed of a first row arranged toward a shaft direction of the brush hub and divided into a first hair portion which is not contacted with a floor and a second hair portion which is contacted with the floor, and a second row sequentially arranged with the first row and divided into a first hair portion which is contacted with the floor by facing to the first hair portion of the first row and a second hair portion which is not contacted with the floor by facing to the second hair portion of the first row.
REFERENCES:
patent: 1884013 (1932-10-01), Losey
patent: 6286169 (2001-09-01), D'Costa et al.
patent: 1377905 (1964-09-01), None
patent: 1321081 (1973-06-01), None
patent: 5-42074 (1993-02-01), None
English language Abstract of JP 5-42074.
Im Hyoung-Bin
Park Sung-Il
Greenblum & Bernstein P.L.C.
LG Electronics Inc.
Redding David
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