Brushing – scrubbing – and general cleaning – Machines – Brushing
Reexamination Certificate
2006-05-05
2010-02-23
Spisich, Mark (Department: 3727)
Brushing, scrubbing, and general cleaning
Machines
Brushing
C015S050300, C015S098000, C015S340400, C015S366000, C015S384000
Reexamination Certificate
active
07665174
ABSTRACT:
A cleaning head for use with a floor cleaning machine comprises first and second cleaning tools, at least one motor and a cleaning tool support. The at least one motor is configured to respectively drive rotation of the first and second cleaning tools about first and second horizontal axes. The first and second cleaning tools each have an exterior cleaning surface configured to engage the floor during floor cleaning operations. The cleaning tool support is configured to support the first and second cleaning tools for movement of the first and second horizontal axes relative to each other in a plane that is transverse to the first and second horizontal axes. Another embodiment of the invention is directed to a floor cleaning machine that includes embodiments of the cleaning head.
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patent
Basham Michael T.
Fleigle Mark J.
Larson Warren L.
Peterson Terence A.
Peterson, legal representative Barbara J.
Spisich Mark
Tennant Company
Westman Champlin & Kelly P.A.
LandOfFree
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