Extraction cleaner with power drive
First Claim
1. An extraction surface cleaning apparatus having;
- a housing including a base and an upright handle pivotally mounted to the base for manipulation of the base along a surface to be cleaned;
a liquid dispensing system mounted to the housing and including;
a liquid dispenser for applying liquid to the surface to be cleaned;
a fluid supply chamber for holding a supply of cleaning fluid;
a fluid supply conduit fluidly connected to the fluid supply chamber and to the liquid dispenser for supplying fluid to the dispenser;
a fluid recovery system mounted to the housing and including;
a recovery chamber for holding recovered fluid;
a suction nozzle;
a working air conduit extending between the recovery chamber and the suction nozzle; and
a vacuum source mounted to the housing and in fluid communication with the recovery chamber for generating a flow of working air from the suction nozzle through the working air conduit and to the recovery chamber to thereby draw dirty liquid from the surface to be cleaned through the suction nozzle and the working air conduit, and into the recovery chamber;
the improvement which comprises;
a traction driver mounted to the base for supporting the housing for movement along the surface to be cleaned; and
a power drive assembly mounted to the housing and connected to the traction driver for selectively propelling the base over the surface to be cleaned.
5 Assignments
0 Petitions
Accused Products
Abstract
A portable surface cleaning apparatus comprises a fluid dispensing system including at least one fluid supply tank, a dispensing nozzle connected to the fluid supply tank through a fluid supply conduit for applying a cleaning fluid to a surface to be cleaned, a fluid recovery tank for holding recovered fluid, a suction nozzle, a working air conduit extending between the recovery tank and the suction nozzle, a vacuum source in fluid communication with the recovery tank for generating a flow of working air from the suction nozzle through the working air conduit and to the recovery tank to thereby recover fluid from the surface to be cleaned through the suction nozzle and working air conduit and into the recovery tank, and a power drive mechanism for selectively propelling the portable cleaning apparatus over the surface to be cleaned
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Citations
32 Claims
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1. An extraction surface cleaning apparatus having;
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a housing including a base and an upright handle pivotally mounted to the base for manipulation of the base along a surface to be cleaned;
a liquid dispensing system mounted to the housing and including;
a liquid dispenser for applying liquid to the surface to be cleaned;
a fluid supply chamber for holding a supply of cleaning fluid;
a fluid supply conduit fluidly connected to the fluid supply chamber and to the liquid dispenser for supplying fluid to the dispenser;
a fluid recovery system mounted to the housing and including;
a recovery chamber for holding recovered fluid;
a suction nozzle;
a working air conduit extending between the recovery chamber and the suction nozzle; and
a vacuum source mounted to the housing and in fluid communication with the recovery chamber for generating a flow of working air from the suction nozzle through the working air conduit and to the recovery chamber to thereby draw dirty liquid from the surface to be cleaned through the suction nozzle and the working air conduit, and into the recovery chamber;
the improvement which comprises;
a traction driver mounted to the base for supporting the housing for movement along the surface to be cleaned; and
a power drive assembly mounted to the housing and connected to the traction driver for selectively propelling the base over the surface to be cleaned. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An extraction surface cleaning apparatus having;
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a housing including a base and an upright handle pivotally mounted to the base for manipulation of the base along a surface to be cleaned;
at least two wheels mounted to the base for supporting the housing for movement along the surface to be cleaned;
a liquid dispensing system mounted to the housing and including;
a liquid dispenser for applying liquid to the surface to be cleaned;
a fluid supply chamber for holding a supply of cleaning fluid;
a fluid supply conduit fluidly connected to the fluid supply chamber and to the dispensing nozzle for supplying fluid to the dispensing nozzle;
a fluid recovery system mounted to the housing and including;
a recovery chamber for holding recovered fluid;
a suction nozzle;
a working air conduit extending between the recovery chamber and the suction nozzle; and
a vacuum source mounted to the housing and in fluid communication with the recovery chamber for generating a flow of working air from the suction nozzle through the working air conduit and through the recovery chamber to thereby draw dirty liquid from the surface to be cleaned through the suction and the working air conduit, and into the recovery chamber;
a drive motor comprising a unidirectional electric motor mounted on the housing;
a transmission assembly operably connected between the drive motor and at least one of the wheels for selectively connecting the drive motor with the at least one wheel, the transmission assembly including a first gear train selectively connected between the drive motor and the at least one wheel for driving the base in a forward direction;
a second gear train selectively connected between the drive motor and the at least one wheel for driving the base in a reverse direction;
a clutch mechanism moveable between the first and second gear trains to alternately connect the first and second gear trains between the drive motor and the at least one wheel;
a belt drive connecting the transmission assembly to the at least one wheel, the belt drive including a tension adjuster for maintaining a predetermined tension on the belt when the base is driven in the front and the rear directions;
the handle having a grip mounted to an upper end thereof, the grip being slidably mounted on the upper end of the handle between an extended position, a neutral position and a retracted position;
a drive actuator mounted on the grip portion and moveable therewith;
a link between the grip and the clutch to move the clutch between the first gear train and the second gear train and to a neutral position between the two gear trains.
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Specification