GB2432304A

GB2432304A - A portable cleaning machine

Info

Publication number: GB2432304A
Application number: GB0703208A
Authority: GB
Inventors: Ronald J Stephens; Gary M Johns; David W Moine; Richard A Wareham
Original assignee: Hoover Co
Current assignee: Hoover Co
Priority date: 2003-10-08
Filing date: 2004-06-28
Publication date: 2007-05-23
Anticipated expiration: 2024-06-28
Also published as: GB0703205D0; GB2432304B; GB2432303B; GB0703208D0; GB2432303A

Abstract

A cleaning apparatus for cleaning a surface is provided. The cleaning apparatus comprises a base 44, a handle moveably connected to the base 44 and a recovery system which includes a recovery tank 64 removably mounted to the base 44, a suction nozzle 62 selectively mounted to the base 44 and usable in both and attached position and in a detached position for cleaning said surface and a suction source 46 for drawing liquid and dirt from the surface through the nozzle 62 and into the recovery tank 64. The handle 104 is preferably telescopic and maybe moveable between a first position in which it is used to propel the cleaner (fig 1), and a second position (fig 3) such that the cleaner can be used as a hand-held cleaning machine.

Description

A PORTABLE CLEANING MACHINE

The present invention relates to a poztable cleaning machine such asacarpetextrador The present application is divided from GB 0414432.5 to which rfcrcrir. e.

I's... .4II I.jLu, It is known-in-the prior -art to provide a portable cleaning machine for cleaning surface, It would be desirable to provide such a cleaning machine that can be -used for both floor cleaning and above the floor cleaning surfaces such a upholsteries and stairs. Further, it would be convenient to have the cleaning machine be converted from an upright type to a hand-held type for use in a variety of cleaning applications, such as vehicles, closets or other areas of limited maneuvering space. 1-lowever, in many of theses cleaning machines, it requires some time and effort to convert the i5 machine from one such cleaning mode or application to another. Often, additional pails -such as an accessory hose with a suction nozzie and a conversion valve hat to be incorporate in the cleaning machine so that it can be used to clean both the floor and above the floor c!eaning surfaces.

Hence, it is an object of the present invention to provide a verstiIe cleaning machine that can be easily used to clean various surfaces in a variety of cleaning areas.

The foregoing and other objects of the present invention will be readily apparent from the following description and the attached drawirtgs. in one aspect of the present invention, a cleaning apparatus for cleaning a surface is provided. The cleaning apparatus has a housing for movement along a surface with a suction nozzle assembly having an inlet and outlet provided on the housing. A recovery container is removably mounted to the housing. A hose having a first end detachably connected to the outlet of the suction nozzle and a second end in fluid communication with the recovery container floor-scrubbing machine is provided. A vacuum source is in fluid communication with the suction nozzle, hose, and recovery container for-drawing dirt from the deaning-surface into -the inlet of-the suction nozzle and into said récovéry container. The cleaning apparatus further includes a handle movably connected to the housing and movable between a first position that locks the first end of the hose to the housing to a second position that unlocks the first end of the hose to the housing.

In another aspect of the present invention, a cleaning apparatus for is cleaning a surface In which cleaning solution is dispensed to the surface and substantially simultaneously extracted along with the dirt on the surface in a continuous operation is provided. The cleaning apparatus comprises a housing with a recovery system mounted to the housing. The recovery system comprises a recovery tank removable mounted to the housing, a suction nozzle selectively mounted to the housing and usable in both the attached and detached position for cleaning the surface, and a suction source for drawing liquid and dirt from the surface through the suction nozzle and Into the recovery tank. A liquid distribution system is mounted at least in part to the housing for dispensing liquid to the surface. The liquid distribution system includes a solution tank removably mounted to the housing for holding the cleaning solution.

In still another aspect of the Invention, a cleaning apparatus for deaning a surface comprises a base assembly for movement along a surface. A handle is movably conneèted to the base assembly for propelling the base assembly along the surface. A recovery system is mounted to the base assembly and comprises a recovery container removably mounted to the housing. Therecovery system further comprises a suction nozzle selectively mounted to the housing and usable in both an attached position and in a detached position for cleaning the surface, and a suction sourcefor drawing liquid and dirt from said surface through said suction nozzle and into said recovery container.

A preferred embodiment of the invention will now be déscribid, by way of example, with reference to the attached drawings, of which: Figure 1 is a front perspective view of the carpet extractor with portions cut away to illustrate hidden elements and with the hose nozzle detached from the housing of the carpet extractor according to the present invention; Figure 2 is a front perspective view of the carpet extractor of FIG.1 with the handle extended and the hose nozzle attached to the housing of the carpet.

extractor for use as an upright in cleaning floor surfaces; and Figure 3 is a left side perspective view of the carpet extractorwith portions cut away to illustrate hidden elements and with the handle retracted and the hose nozzle detached from the housing of the carpet extractor for use as a hand-held extractor In cleaning above the floor surfaces.

in one embodiment of the present invention, an upright carpet exfractor40 that can be converted into hand-held Is shown in FIG. 1. The base assembly 42 includes a frame or housing 44 that houses in part a suction motor/fan assembly 46. A suitable motor/fan assembly is shown in U.S. patent 5,500,977, the disclosure of which s is incorporated by reference. The base assembly includes two laterally displaced wheels 48R, and 48L are rotatably attached to the rear of the housing 44. A supply tank assembly 52 is removably mounted to the housing 44 at tiTe left reai'portio thereof as shown in FIG. 3. A pump 54 is mounted to the base assembly 42 and fluidly connected to the fluidly supply tank assembly 52 for drawing the deaning solution to a distributor.45(Fl&3) provided-on the base assembly 42 or through a solutionhose 56 to a spray mechanism 58 for a suction hose 60. The suction hose 60 has a nozzle 62 attached at its inlet end 63 through hose connector 90 that is selectively riiountd to the housing 44 and usable in both an attached position and in a detached position (which will be explain further) for cleaning a surface. The pump 54 can be any suitable type, such as an air turbine driven type disclosed In the above-mentioned U.S. patent 5,500,977.

The spray mechanism 58 is mounted to the underside of the tubular hose connector 90 and operated by a trigger 50. The hose connector and spray mechanism* is generally formed of a rigid material. The spray mechanism 58 can be any suitable device such as that disclosed In previously mentioned U.S. patent 5,500,977.

Alternatively, the hose suction nozzle 62 could be detachably connectçd to the hose connector 90 of the hose 60, so that other nozzles or accessory tools such as a crevice tool or nozzle with an attached rotating brush could be attached to the hose 60 Instead of the nozzle 62. A recovery tank 64 removably sets upon the housing 44 at the right rear portion of the housing 50 and is in fluid communication, with the suction motor 4..

A trapezoidal shaped floor suction nozzle 66 is mounted to the front portion 68 of the housing 44' of the base assembly. The floor suction nozzle 66 has an inlet 70 formed at its bottom 76 extending across the width of the base assembly 42.

S The sides of the floor suction nozzle 66 converge into an outlet 72 at the upper portion 74 of the nozzle 66. The hose suction nozzle 82 is detachably attached to the housing 44 rearwardly adjacent the outlet 72 of the floor suction nozzle 66 and In fluid communication therewith. The hose suctiorr nozzle 62 has an Iniet 78, which Isof substantially similar width as that of the outlet 72 of the floor suction nozzle 66,so that it io fitsover the outlet 72 of the floor-suction nozzle 66. The-hose suction nozzle 821s generafly triangularly shaped and attached to the hose connector 90, which Is connected to the Inlet 63 of the hose 60 as previously mentioned. The outlet end 80 of the hose 60 is attached to the housing 44 and is In fluid communication with the inlet 82 -of the recovery tank 64. Alternatively, the hose 60 can be detachably connected to he inlet 82 of the recovery tank 64. The hose 60 is generally flexible, elongated, and.

corrugated throughout its length.

The housing 44 includes a middle portion 84 in which a channel 86 is formed on the upper surface of the middle portion 84 for receiving the hose connector for the hose 60. The channel 86 extends from the front edge to the rear edge of the middle portion 84 and has a generally semicircular shaped cross section. A closed looped carry handle 88 is pivotally connected by a hInge 92 to the housIng 44 adJacent the channel 86 and pivots along a longitudinal axis with respect to the carry handle 88.

The carry handle 88 includes a curvilinear top section 94 for grasping by a hand of a user and a bottom section 96 that extends along the length of the channel 86. A channel 98 is formed on the underside of the bottom section 96 and complimentaryfits over the hose connector 90 receIved in the channel 86 to releasably secure the hose 60. hose connector 90, and hose suction nozzle 62 to the housing 44. The spray mechanism 58 and trigger 50 is received in a recessed area within the channel 86. A suitable latching means such as a hook and pile fastener commonly know as Velcro releasably secures the carry handle 88 to the housing 44.

in particular, hooks 100 attached to the underside of the bottom section 96 of the carry handle 88 are detachably connected to a complimentary pile strip 102 attached to the housing 44 adjacent the channel 86. To attach the hdse 60 hoSe connector 90 and the hose suction nozzle 62 to the housing 44, a user first graspsthe canyingiiandle 88.and pivotsthe carrying handle 88 away from the channel 86 as seen in FIG. 1. The user then inserts the hose connector 90 into the channel 86 and then pivots the carry handle 88 towards the channel 86 until the channel 98 of the bottom section 96 of the carrying handle 88 fits over the hose connector 90 and the hooks 100 attach to the pile strip 102.

An upright telescoping handle 104 is pivotally connected to the rear portion of the base assembly 42 for propelling the carpet extractor 40 across the surface. The handle 104 is collapsible so.that the extractor 40 can be converted.to a hand-held extractor as shown in FIG. 3. The handle 104 includes three telescoping sections 106. 108, 110. In particular, the upper section 106 terminates into a closed looped handgrip 112 (FIGS. 2 and 3) and is inserted into the middle section 108, WhIch is inserted into the lower section 110. Thus, the upper section 106 has a smaller diameter than the middle section 108, which has a smaller diameter than, the lower section 110. The telescoping sections 106, 108, 11 o slide into their respective sections when the handle 104 is retracted with sufficient force applied to overcome the frictional sliding force of adjacent telescoping sections. A hose support member 114 s secured on the upper section for receiving the hose 60.

*When the carpet extractor 40 Is In the floor cleaning position as shown In FIG. 2, the handle 104 Is extended and the hose suction nozzle 62 is mounted on the housing 44 adjacent the outlet 72 of the floor suction nozzle 66 in fluid communication with the floor suction nozzle 66 for floor cleaning. In this position, the extractor 40 is an upright extractor. A suitable trigger switch 47 (FIG. 1) pivotally mounted on the handgrip 47 or alternatively on the base assembly 42 selectively controls the flow of cleaning solution to the distributor 45. Iif the above the floor cleaning position, the handle 104 is retracted to convert the extractor 40 to a hand-held extractor. The carry handle 881s then pivoted awayfrom the hose connector 90 to allow its removal from the -housing 44. The hose 60. hose connector 90, and hose suction nozzle 62 can be then be used for above the floor cleaning as shown in FIG. 3. It should be noted that the extractor 40 can also be used as a hand-held extractor with the hose 60, hose connector 90, and hose suction nozzle 62 attached to the housing 44. Further, the extractor can be used as an upright extractor with the hose 60, hose connector 90, and hose suction nozzlö 62 detached from the housing 44. Further, a brush assembly such as a horizontal brush roll can be rotatably mounted to the base assembly 42 to scrub the floor.

In general, the carpet extractor 40 distrIbutes cleaning solution to the carpeted surface and substantially simultaneously extracts It along with. the dirt on the carpet in a continuous operation. In particular, soiled cleaning liquid is extracted from the carpet by the floor suction nozzle 66 or hose suction nozzle 62, whIch communicates with the recovery tank 64 through the hose 60. The soiled cleaning solution travels through the hose 60 and hose connector 90 and into the recovery tank 64 where the liqUid Is separated by the air and collects on the bottom of the tank 64. A.

S

vacuum Is created in the recovery tank 64 by the motor fan assembly 46 that draws air from the recovery tank 64 and exhausts the air to the carpeted surface.

The present invention has been described by way of example using the illustrated embodiment. Upon reviewing the detailed description and The appended drawings, various modifications and variations of the preferred embodiments will become apparent to one of ordinary skll! in thc art. AH such obvious modifications and variations are intended to be included in the scope of the present invention and of the claims appended hereto.

Claims

CLAIMS: 1. A cleaning apparatus for cleaninp a surface comprising: a

base assembly for movement along a surface; a handle movably connected to the base assembIyfor propelling said base assembly along said surface; S a recovery system mounted to said base assembly and comprising: a) a recovery container removably mounted to said housing; b) a suction nozzle selectively mounted to said housing and usable in both an attached position and in a detached position for cleaning said surface; and c) a suction source for drawing Uquid and dirt from said surface through said-suction nozzle and into said recovery container.

2. The cleaning apparatus of claim 1 wherein said handle is pivotally connected to said base assembly.

3. The cleaning apparatus of c)aim I or claim, 2 wherein said handle is placed in a second position such that the cleaning apparatus can be used as a hand-held cleaning machine.

4. The cleaning apparatus of claIm 3 wherein said handle includes.at least a first poijion telescopically connected to a second portion, said first portion telescoping substantially into said second portion to place said handle in said second position., - 5. The cleaning apparatus of ny of claims 1-4 wherein said base assembly includes pair of wheels rotaably mounted on oppositesides thereof.

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