Rotating brush controlling apparatus in a floor sweeping...

Brushing – scrubbing – and general cleaning – Machines – Brushing

Reexamination Certificate

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Details

C015S049100, C015S082000, C015S340300

Reexamination Certificate

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10854283

ABSTRACT:
Provision is made for a rotating brush controlling apparatus (8) in a floor sweeping machine (1), comprising: a lifting device (15) suitable for applying a lifting force (15a) which is capable of lifting a rotating brush (8) to remove the same from a surface to be swept (7), and an actuating device-(16) which is suitable for applying a working force (16a) on command against the lifting force (15a), where the rotating brush (8) and the actuating device (16) are linked to each other and where moreover some adjusting devices (24) are provided, which are suitable both for optionally selecting the working force (16a) to selectively force the rotating brush (8) on the surface (7) to be swept, and for keeping the working force (16a) substantially constant in the presence of irregularities in the surface to be swept (7).

REFERENCES:
patent: 3510900 (1970-05-01), Roslund
patent: 3790981 (1974-02-01), Young
patent: 4138756 (1979-02-01), Krier et al.
patent: 4674142 (1987-06-01), Meili
patent: 4785715 (1988-11-01), Bosniac
patent: 1 026 771 (1958-03-01), None
patent: 0 795 647 (1997-09-01), None

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