Vacuum extraction apparatus for cleaning a surface
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United States of America Patent
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Sep 9, 2008
Grant Date -
Jun 8, 2006
app pub date -
Dec 3, 2004
filing date -
Dec 3, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
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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