Brushing – scrubbing – and general cleaning – Machines – Brushing
Reexamination Certificate
2008-01-01
2008-01-01
Spisich, Mark (Department: 1744)
Brushing, scrubbing, and general cleaning
Machines
Brushing
C015S083000, C015S087000
Reexamination Certificate
active
10159727
ABSTRACT:
A surface maintenance apparatus is described, having a sweeping system positioned near the front or leading edge of the apparatus. The sweeping system includes a plurality of brushes and a removable hopper for collecting debris. The sweeping system is capable of being raised off the surface being maintained when the sweeping system encounters an obstacle or irregularity on the surface. The brushes are pivotally mounted to the surface maintenance apparatus to allow the brushes to be rotated away from each other, providing access to the removable hopper from the front end of the surface maintenance apparatus.
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patent: 705558 (1996-04-01), None
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PCT International Search Report, dated Nov. 26, 2002, 4 pages.
Fulbright & Jaworski L.L.P.
Spisich Mark
Tennant Company
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