Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate
2006-10-20
2010-10-05
Redding, David A. (Department: 3723)
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
C015S320000, C015S340100
Reexamination Certificate
active
07805802
ABSTRACT:
A debris collection system for a floor cleaning machine includes a motorized cleaning head attached to a frame of the floor cleaning machine, a carriage attached to the frame, a debris tray, and a de-watering system. The debris tray is removably receivable within the carriage and is positioned to receive debris thrown from the motorized cleaning head. The de-watering system includes a liquid extracting component, a tray tubing section, a main tubing section, a waste recovery tank supported on the frame and a vacuum in vacuum communication with the main tubing section. The liquid extracting component is attached to the debris tray and is configured to extract liquid from within the debris tray. The tray tubing section has a first end that is coupled to the liquid extracting component and a second end that is mounted in fixed relation to the debris tray. The a main tubing section has a first end that is connected to the waste collection tank and a second end that is positioned to automatically couple to the second end of the tray tubing section upon installation of the debris tray.
REFERENCES:
patent: 5901407 (1999-05-01), Boomgaarden
Jensen Laurence A.
Loring Peter A.
Shinler Kevin L.
Redding David A.
Tennant Company
Westman Champlin & Kelly P.A.
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