Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2005-02-22
2005-02-22
Till, Terrence R. (Department: 1744)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C210S167050, C210S195200, C210S241000, C210S257200, C210S258000, C210S321690, C210S411000, C210S416100, C210S650000, C210S653000, C210S654000
Reexamination Certificate
active
06857162
ABSTRACT:
The present invention relates to a cleaning and/or treatment device for cleaning and/or treating surfaces such as floors, pavements and carpets. The invention particularly relates to a cleaning and/or treatment device using cleaning/treatment solution, wherein the solution is recirculated and thereby used more than one time. The cleaning device comprises a filter unit for cleaning dirt from a dirty solution tank and means for recirculating said cleaned solution to a clean solution tank, wherein said filter unit comprise at least one cross-flow filter, said cross-flow filter preferably being a membrane filter. The invention also relates to a process of cleaning and/or treating surfaces using such a device.
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Kamrath Alan D.
Nikolai & Mersereau , P.A.
Nilfisk Advance A/S
Till Terrence R.
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