Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2004-12-03
2008-09-09
Hail, III, Joseph J. (Department: 3723)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S321000, C015S323000, C015S334000
Reexamination Certificate
active
07421759
ABSTRACT:
An apparatus (20) for cleaning a surface (22) includes a clean fluid tank (26) containing a cleaning fluid (46) and configured for delivery of the fluid (46) to the surface (22). The clean fluid tank (26) has a first outer surface (76). A waste fluid tank (30) is coupled with the clean fluid tank (26) and has a second outer surface (78). The second surface (78) abuts the first surface (76) to form a conduit (84) between the first and second surfaces (76, 78), the conduit (84) being in fluid communication with the waste fluid tank (30). Vacuum motors (94) and (108), in communication with the conduit (84), operate to vacuum waste fluid (164) and air (116) into the waste fluid tank (30). The air (116) is expelled from the waste fluid tank (30) via the conduit (84).
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“Sanitaire Commercial Canister Carpet Cleaner” http://www.kleenkuip.com/portables/sanitaire—SC6080.htm, Oct. 25, 2004.
Davis Reed A.
Michael William J.
Gresham Lowell W.
Hail III Joseph J.
Jacobsen Charlene R.
McDonald Shantese L
Meschkow Jordan M.
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