Abstract:
A device for quickly cleaning a variety of surfaces is provided that preferably utilizes a positive capture roller and three-dimensional capture matrix. In particular, the roller is tacky and is in close relationship with a three-dimensional capture media. The roller may be refreshed by a washing mechanism and the media may be replaceable.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application claims the benefit of priority to U.S. Provisional Patent Application Ser. No. 61/491,934 filed Jun. 1, 2011 and entitled Quick Pickup Device For Debris On Any Surface With Positive Capture, the entirety of which is hereby incorporated by explicit reference thereto. 
    
    
     FIELD OF THE INVENTION 
     The present invention relates to surface cleaning devices, and more specifically to a surface cleaning device including a roller and one or more tacky surfaces for picking up dust, lint, and other debris from a variety of surfaces. The inventive tacky surfaces can be periodically refreshed by the user as well as having a self-refreshing mechanism. 
     BACKGROUND OF THE INVENTION 
     A number of different surface cleaning devices utilizing adhesive, tacky, attractive, or sticky surfaces, i.e. having “positive capture”, have been developed for cleaning various surfaces. The majority of these devices include a single roller having a sheet of material with a tackified outer surface disposed on the exterior of the roller. The adhesive on the roller is generally capable of picking up lint, dust, and other debris on the surface as the roller is contacted with the surface. As the roller moves along the surface, the tackified surface contacts and adheres to the lint, dust, and debris on the surface, thereby lifting the debris off of the surface and onto the roller. 
     However, with regard to cleaning devices of this type, the roller has a limited number of uses. This is because the adhesive material on the exterior of the roller must be continually cleaned or replaced based on the amount of debris that adheres to the roller as it moves across the surface. 
     In order to overcome this shortcoming, other cleaning devices have been developed that include a pair of rollers. A continuous web of an adhesive sheet material is connected between the rollers. In these devices, the adhesive sheet material can be advanced from a web supply roller toward a web take-up roller as the device is used in order to provide a number of sequential clean sections of the adhesive sheet web when the previous section has collected a sufficient amount of lint, dust, or debris to render the previous section no longer usable. Because the adhesive sheet is continually moved onto the take-up roll and off of the supply roll, the device can readily present a clean section of the adhesive sheet for use in cleaning a surface. 
     Examples of devices of this type include Hester, U.S. Pat. No. 4,083,075. This patent discloses a lint pickup device that includes a pair of rollers formed as a supply roller and a take-up roller that are disposed within a cartridge and which support a continuous web of an adhesive sheet utilized to clean carpets, rugs, and other surfaces of lint. 
     Blum et al., U.S. Pat. No. 6,735,806, discloses another device of this type including a tacky roller for improved surface cleaning in which a continuous sheet of a tackified web is applied to a surface to clean the surface. The web is supported by a pair of rollers disposed within the device and by a number of contact rollers which maintain the web in contact with the surface to be cleaned as the web moves continuously between the rollers. The device also includes a brush that contacts and provides additional cleaning to the surface. 
     Still another cleaning device of this type is shown in Plankenhorn, U.S. Pat. No. 6,859,976, which discloses a cleaning device with continuous action wiping and sweeping having a continuous web of an adhesive sheet material connected between a supply roller and a take-up roller. The web of the adhesive material is advanced from the supply roller onto the take-up roller by a variety of mechanisms, in order to provide the device with a continually clean tackified portion of the web for cleaning purposes. 
     Shizuno et al., U.S. Pat. No. 7,137,165, discloses a cleaning device with an adhesive roll cleaner having a single-sided adhesive sheet wound around a core tube into a roll with the adhesive side facing out. Here the adhesive of the adhesive sheet comprises a hot-melt adhesive, solvent adhesive, or aqueous adhesive. The adhesive is applied to the base sheet at a coating weight of 15 to 50 g/m 2  and a silicone release agent is applied to a back side of the adhesive sheet. The adhesive roll maintains an outer diameter within a range of 22 to 40 mm from start to end of use and the roll has a width of 180 to 300 mm. 
     Similarly, U.S. Pat. No. 7,676,877 to Policicchio et al. is a cleaning implement comprising a sweeper head with a removable collection bin with an adjustable height and an opening for receiving debris. The sweeper head has a rotating member for projecting loose soils from the surface being cleaned into the collection bin and a disposable cleaning substrate removably attachable to the collection bin. 
     Finally, U.S. Pat. No. 7,793,377 to Knopow et al. discloses an adhesive web having two take-up rollers. 
     Each of the above-discussed references is now expressly incorporated herein by reference. 
     In the present invention, it is desirable to develop a cleaning device utilizing one or more positive capture elements that may be automatically refreshed or easily removed and replaced with a minimum of waste materials generated. It is also desirable that the soils and other debris be effectively captured so that they are not subsequently dispersed onto the cleaned area. 
     SUMMARY OF THE INVENTION 
     According to one aspect of the present invention, a positive capture roller cleaning device is provided mounted to a housing that may be either hand held or as a sweeping attachment. The roller is substantially covered with an external roller material having some positive capture quality such as adhesiveness, stickiness, attractiveness, e.g., electrostatic attraction, or tackiness such that debris that is proximate or in contact with the roller will adhere to the roller in some fashion. 
     The device also includes a refreshing mechanism for the roller wherein the time between cleaning or replacement of the roller is extended. The refreshment mechanism may deposit the debris collected by the roller into a collection bin. The refreshment mechanism may also refresh the roller surface by embedding the debris into the external roller material or may expose a new tacky material or less debris-laden external roller material. 
     The collection bin may have a mechanism for retaining the debris such as a mechanical one-way channel. Alternatively, it may include a plurality of positive capture 3-dimensional (3D) matrix elements or capture media that have sticky or tacky surfaces, for example, spheres, polygons, cylinders, cubes, and so forth. 
     Another aspect of the invention is to provide a refreshing floor sweeper that includes a cleaning element having a handle for grasping by the user and coupled to a base. The base may include a housing with a central opening configured to receive a roller that extends at least partially out of the housing for contacting the surface to be cleaned. The roller includes a tacky material to enable the roller to pick up and retain debris from the surface to be cleaned. The tackiness of the material is such that the debris is easily picked up off of the surface to be cleaned but not so tacky that the roller sticks to the surface to be cleaned when it is rolled over it. 
     In one embodiment, a capture media cartridge is configured to be secured within the housing to define a means for capturing the picked-up debris as well as for cleaning the roller. The cartridge preferably provides a 3D matrix for cleaning the roller and securing debris picked up by the roller. In particular, the cartridge includes a plurality of tacky or wet spherical elements that may include superabsorbent compounds such that the surface tension thereof is such that the debris may be picked up off the roller but slick enough so that the elements do not bunch or stick together. The elements are preferably contained within a mesh or cage that allows them to interface with the roller but secures them within the cartridge to prevent the elements from falling out of the cartridge. 
     The housing preferably additionally includes a central brush that assists in cleaning the picked-up debris off of the roller. The housing additionally includes a number of containment brushes secured to an underside of the housing and engageable with the roller. The containment brushes prevent debris contained within the housing from falling out of the housing. 
     Another aspect of the invention is to provide a cleaning device with a manually grippable handle attached to a base with a positive capture roller and a debris capture matrix contained in the base. The matrix includes a 3-dimensional capture media that may be replaceable. The roller is tacky and is refreshed by a refreshing member. 
     Yet another aspect of the invention is to provide for quick pick up of debris on any surface with positive capture using a base including a bin having a cleaning side brush and capture top brushes. The base also includes a cage for holding debris and a capture matrix, as well as a tacky polyurethane textured roller that is in contact with the cleaning brush. The textured roller may have any number of patterns disposed thereon including a diamond shape pattern for assisting in the picking up of debris and removal therefrom. The capture matrix may include a plurality of media made of a carageenan-based gel formulation. The matrix may be a plurality of cylinders made of a gel and restrained by a cage contained in a cartridge. As well, the matrix may be a multitude of removable and disposable gel balls. Furthermore, the matrix may be a plurality of free-floating 3-dimensional gel media in a replaceable cartridge refill. 
     Still another aspect of the invention is to provide for quick pick up of debris on any surface with positive capture while providing mechanisms for refreshing the roller and/or capture matrix. For example, the cleaning and refreshing of the roller may be provided by a brush acting on the roller and/or by a member that provides a flicking action. In one embodiment, the flicking action is provided by a brush in communication with the pickup roller that cleans the roller as well as directs the debris from the roller into the bin. Other brushes may be provided that are stiff and angled to prevent the debris from escaping the bin. Alternatively, rotating cleaning/refreshing brushes may be provided that contact the roller. In another embodiment, the cleaning device may also have a wick to refresh the roller surface where pressure is provided by the wick on the roller. In the alternative, the roller may contain a gel that is refreshed by peeling, sanding, or scraping, or the roller may be a replaceable refill. The roller may also include kneadable putty and a kneading member that refreshes the puttied surface of the roller. 
     In yet another aspect of the device according to at least one embodiment of the invention, the device may include a disposable roller that may be selectively replaced with a new roller once the roller has lost sufficient effectiveness for picking up debris. In the present embodiment, the device includes a housing having a base member, a rear door member, and a lid member. The rear door member may be movably coupled to the base member by a hinge arrangement disposed therebetween. The rear door member may be secured in place so as to not rotate during operation by way of a pair of opposed clips connected the base member to the rear door member. In this manner, the operator of the device may, as desired, unlock and lock the rear door member relative to the base member and expose the rear of the device for cleaning, maintenance or the like. 
     The rear door member may be configured to house and rotatably support a rear wheel arrangement, which may include a pair of opposed wheels at each end of the device. The wheels may be coupled to the rear door member by an axle, pin or similar element for rotation there. The wheels along with the disposable roller are configured to enable movement of the device over a surface to be cleaned. 
     The base member may have a two-piece construction including a rear base member and a forward base member, which together define an interior in which the roller is rotatably coupled and movably secured. The forward base member may be movably coupled to the rear base member to enable the operator to remove or replace the roller. In at least one construction, the rear and forward base members are secured to one another by way of a vertical hinge arrangement about which the forward base member may be rotated to disengage from the roller on either side thereof. The forward base member may include a coupling arrangement for receiving an axle, pin, or the like of the roller on either side thereof for rotatably securing the roller thereto. Accordingly, as desired, to remove the roller from the base member, the operator may rotate the forward base member away from the roller on each side thereof such that the axle, pin, or other structure is disengaged therefrom for selective removal thereof. 
     The roller may coated with or otherwise have adhered to it a gel material configured to pick up debris that the roller encounters during operation. Moreover, the roller may be impregnated with any number of agents for enhancing tackiness, durability, fragrance, and the like. 
     The base member may be coupled to the lid member at a forward edge thereof. In one embodiment, the base member is coupled to the lid on either side by a clip arrangement that operates similarly to the clip arrangement between the base member and the rear door member. In this manner, the lid may be movable relative to the base member to selectively expose the roller for removal, cleaning, applying a treatment thereto, or the like. In one embodiment, the lid may be rotatable between a first, operative position in which the roller is engageable with the surface to be cleaned, a second, non-operative position in which the lid is rotated to cover the surface-engaging portion of the roller, and a third, refilling position in which the lid is moved away from the roller so that the roller may be removed or replaced. 
     Numerous other aspects, features, and advantages of the present invention will be made apparent from the following detailed description taken together with the drawing figures. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       A clear conception of the advantages and features constituting the present invention, and of the construction and operation of typical mechanisms provided with the present invention, will become more readily apparent by referring to the exemplary, and therefore non-limiting, embodiments illustrated in the drawings and photos accompanying and forming a part of this specification, wherein like reference numerals designate the same elements in the several views, and in which: 
         FIG. 1  is an isometric view of the pickup device constructed according to the present invention; 
         FIG. 2  is a magnified, isometric view of the base of the pickup device of  FIG. 1  wherein the head has a partially transparent cover; 
         FIG. 3  is a more magnified, isometric view of the base of the device of  FIG. 2 ; 
         FIG. 4A  is an isometric view of the inventive pickup device of  FIG. 1  in use; 
         FIG. 4B  is an schematic showing a path of travel of a piece of debris while the inventive pickup device of  FIG. 4B  is in use; 
         FIG. 5  is an isometric view of the inventive pickup device of  FIG. 1  after some use; 
         FIG. 6  is an exploded isometric view of the device of  FIG. 1  showing disposal of a used cartridge; 
         FIG. 7  is an isometric view of a refill cartridge of the pickup device of  FIG. 1 ; 
         FIG. 8  is a series of exploded, isometric views of the device of  FIG. 3  showing the replacement of the device&#39;s cartridge; 
         FIG. 9  is a front perspective view of a second embodiment of the inventive device with parts removed; 
         FIG. 10  is a magnified, isometric view of a roller and refreshing wheel of the inventive pickup device of  FIG. 9 ; 
         FIG. 11  is a front perspective view of another embodiment of the inventive device with parts removed; 
         FIG. 12  is a magnified, isometric view of a roller and refreshing wheels of the inventive pickup device of  FIG. 11 ; 
         FIG. 13  is an isometric view of the base of the pickup device constructed according to the present invention wherein the head has a partially transparent cover showing cylindrical capture media; 
         FIG. 14  is an isometric view of the base of the pickup device constructed according to the present invention along with an exploded, isometric view showing the replacement of the device&#39;s roller; 
         FIG. 15  is an isometric view of the base of the another pickup device constructed according to the present invention along with an exploded, isometric view showing the replacement of the device&#39;s roller pad; 
         FIG. 16  is an isometric view of a representative construction of yet another embodiment of the pickup device constructed in accordance with the present invention; 
         FIG. 17  is a cross section side elevation view of the pickup device of  FIG. 16 ; 
         FIG. 18  is a cross section view of a roller of the pickup device of  FIG. 17  taken along the line  18 - 18 ; 
         FIG. 19  is a top plan view of the pickup device of claim  16 ; 
         FIG. 20  is a side elevation view of the pickup device of claim  16 ; 
         FIG. 21  is a front elevation view of the pickup device of claim  16 ; and 
         FIG. 22  is a bottom plan view of the pickup device of claim  16 . 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Before the embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or being carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. The use of “connected,” “including,” and “comprising” and variations thereof is meant to encompass the items listed thereafter and equivalents thereof as well as additional items and equivalents thereof. 
     With reference now to the drawing figures in which like reference numerals designate like parts throughout the disclosure, a roller quick pickup cleaning device constructed according to the present invention is indicated generally with the reference numeral  10  in  FIG. 1 . 
     In one embodiment, as best shown in  FIGS. 1-8 , the quick pickup cleaning device  10  has a long handle  15  and a base  20 . The base  20  preferably further comprises a collection bin  25 . The bin  25  preferably includes a cage or carrier  30  and cartridge  40 . A roller  50  having a tacky surface  60  is operably connected to the base  20 . 
     A roller clean-off apparatus, e.g., a wiper or brush  55 , may be located in the base  20  near the roller  50 . The wiper or brush, or preferably both, cleans debris from the roller surface and reconstitutes the tackiness of the roller. In one embodiment, the wiper may be connected to a pad that adds a liquid to the wiper which is then transferred to the roller surface. The pad and brush may be contained in the cartridge  40 . 
     A dirt capture or catching matrix or media  70  is located within the cartridge  40  as best shown in  FIG. 2 . In one preferred embodiment, the dirt-catching matrix  70  consists of a plurality of capture media including tacky spheres or balls  80 . In one embodiment, such as that shown in  FIG. 13 , the capture media may be cylinders  86 . 
     In one embodiment, as shown in  FIG. 3 , the bin  25  holding the cartridge  40  may contain a cover  85  that is transparent or see-through. As the individual balls  80  and cartridge  40  capture dirt, they provide a visual cue to the user through the transparent cover  85 . Once significant dirt is collected, the individual balls  80  lose their ability to collect any more dirt and must be removed and/or replaced. 
       FIG. 7  shows a cartridge  40  containing individual balls  80  after the cartridge has been removed from the base. As can be seen in  FIG. 7 , a mesh or grate material  35  preferably forms the cage or a carrier  30  (here within the cartridge  40 ) to hold the balls  80  and also the collected dirt in place. 
       FIG. 5  shows the cartridge in place within the base  20 . In this Figure, the user has collected a variety of dirt off of a surface  90  which can be seen within the cartridge  40 . The dirt has collected on and/or around the individual balls  80 , as shown. 
       FIG. 6  shows the cover  85  of the base  20  being opened to allow the user to drop the used-up cartridge  40  into a trash pail  95 . Preferably, the cover  85  has a lift mechanism  87  to allow the opening of the cover without the user getting dirty. 
       FIG. 8  shows typical steps for a use and operation of loading and unloading the cartridge  40 . The cartridge  40  is preferably packed in a package  45  in order to keep it fresh and dirt-free. Once the cartridge  40  is removed from the package  45 , the door or cover  85  is opened up in the base  20 . The cartridge  40  is then placed in the bin  25  of the base  20 . The cover or door  85  is then closed and the lift mechanism  87  may be clicked into place which preferably locks the cover  85  closed. 
     In another embodiment, for example,  FIGS. 9-12 , the inventive sweeper device  110  of the present disclosure contemplates a handle  115  and a base  120 . The base  120  preferably includes a single main roller  150  in operative communication with a plurality of refresher wheels  163  ( FIGS. 11 and 12 ) or a refresher roller  165  ( FIGS. 9 and 10 ). Further, a coating  155  is provided on the main roller  150  to make it tacky. In one embodiment, the tacky material  155  on the roller  150  is a putty material coating. In addition, the putty material  155  may be continuously engaged with the refreshing wheels  163 . This sweeper  110 , however, does not include a brush disposed near the main roller. However, in one embodiment, the brush may be replaced by a scraper. 
     Referring to  FIG. 14 , in yet another embodiment, the device  180  may have a roller  50  that is on sleeve that is completely replaceable, like a conventional paint roller. The device  190  may lack a bin, but has a base  20  consisting of a housing  65  in communication with a roller mount  75 . The roller  50  preferably slides on to the roller mount  75 . 
     Turning now to  FIG. 15 , another embodiment of the device  190  may have a roller  50  that is removable and a roller pad  66  that is replaceable. The device&#39;s roller  50  may have a new pad  66 , for example, attached to a Velcro®-like surface  68 , with the inner surface of the replacement pad  66  having a hook texture  67  that mates with the eye/loop texture of roller surface  68 . The pad  66  may be applied to the roller  50  in a wrapping motion  69  and the assembled pad  66  and roller  50  may be mounted on the roller mount  75 . In addition, the housing  71  may have a front portion  73  and back portion  77  wherein the front portion  73  may be lifted to access the roller for removal or mounting (not shown). 
     In one embodiment, the device&#39;s handle may be removable and/or adjustable. For example, the handle may be replaced with a smaller handle or may be made up of sections that come apart to provide a shorter or longer handle depending on the application. In another embodiment, the handle may be telescoping. The handle, like other components of the device, may be made of wood, plastic, metal, or any other suitable rigid and durable material. 
     As mentioned above, the inventive device&#39;s ability to capture dirt and debris in 3-dimensional capture matrix provides an increased debris-holding capacity and surface area versus the prior art flat tape or 2-dimensional pad or tape. For example, the matrix preferably includes a free-moving capture media, such as spheres or cylinders, that rotate or tumble to remove and capture debris from the roller where it adheres to the capture media or within the collection bin. Preferably, the capture media is made of a material that is durable, tacky, absorbent, and/or has excellent surface tension. The material preferably allows the media to stay whole, hold debris, easily tumble, stay free without clumping together, and remain firm enough to avoid getting smashed by the roller. The capture media may be constructed of a variety of materials, e.g., rubber, fuzzy material, neoprene, wood, plastic, and/or wicking spheres. These materials may also include a superabsorbent polyacrylamide, co-polymer, and/or bisacrylamide with water infusion. In one embodiment, the media is washable and/or replaceable. 
     In one embodiment, the capture matrix is preferably made up of spheres that are contained in a disposable cartridge that is placed in the collection bin. In this embodiment, the spheres are lightly tacky and moist to facilitate pickup, but are allowed to move freely avoiding cohesion. The capture media spheres are infused with water to provide the optimum surface tension and stickiness to attract debris while remaining slippery enough to prevent cohesive bonding of the media. 
     The capture media within the collection bin is such that it may attract debris from the roller. The bin preferably retains the media within a cage including a thin mesh or a grate that allows the media to interface with the tacky roller, yet not escape and potentially be drawn out onto the floor by the tacky roller. 
     As mentioned above, the roller of the device preferably has a tackiness or attractiveness to pick debris off any floor surface. This tackiness needs to be in proper range, however; for example, if the roller is too tacky and the user will not be able to get the material off the roller to later refresh it. If the roller is not tacky enough, the user will not be able to the material off the floor. Thus, the proper durometer and thickness of material is required to optimize pickup. For example, many silicones and polyurethanes work well and, specifically, a polyurethane blended with fillers seems to work best from a tackiness (surface-energy) standpoint and durometer. Adding a texture to the roller surface increases pickup surface area and makes it easier to clean off. One material known in the prior art is currently found in a cleaning tool called Mr. Sticky. See www.buymrsticky.com. In one embodiment, the roller may be constructed of a hook and loop fastener type material and covered with a tacky gel. In another embodiment, the gel, e.g., Kelcogel, may be held in place on the roller with a mesh. 
     In one embodiment, the roller is refreshed by shaving, sanding, and/or scraping the tacky roller. In another embodiment, the roller may be washable. In another embodiment, the bin may be a reservoir that may be emptied. 
     As mentioned, preferably, a roller-refreshing member is provided on board the device. Applying moisture to the roller while in use facilitates cleaning off and capturing the debris, as well as, rejuvenating the tackiness. The best way to accomplish this action is by using 1) polyacrylamide water balls or carageenan balls or cylinders in double duty (dirt capture and roller washing), 2) a marker-type capillary element saturated with water (about 10-20 milligrams) that applies moisture via a nib across the roller, and/or 3) a saturated absorbent cylinder that rotates along with the tacky roller or is contained within the roller. 
     In one embodiment, the moisture-supplying and roller refreshing member may be a 3D rectangular, replaceable wick made of a compressed polyester/polymer fiber. The fiber may be compressed to a certain density to control liquid flow control. One supplier of this material is Filtrona PLC. In another embodiment, the wick may be a small, absorbent roller or pad that engages the roller along its entire length. Where a liquid is present, the liquid may contain cleaners, fragrances, deodorizers, anti-microbals, or disinfectants. Of course, these additives may also be contained in the capture media, e.g., the spheres or cylinders, or the roller itself, or the removal roller pad layer. 
     As discussed, in one embodiment, the roller refreshing apparatus includes a kneading roller or wheel(s) that knead a tacky putty-like substance on the roller. In another embodiment, a scrapper blade may be provided to slightly scrape the soiled roller surface away and provide for a new surface contained underneath. In this embodiment, the roller may be made of a cardboard tube that has a roller surface made of carageenan. Here the roller may be sold in a package that is flat and then must be popped open and secured to the handle with a pair of insertion disks that have a male portion that can be inserted into the ends of the roller tube. 
     In one embodiment, as mentioned, a centrally located clean-off brush aids in cleaning material off the tacky roller. Some material is cleaned off directly by the capture media, while others require the brush to dislodge it so that it can be ultimately captured by the capture media. The brush preferably provides a flicking action to dislodge debris stuck to the roller surface. The brush needs to be rigid enough do its job, but not too rigid so that it imparts too much resistance to the roller and makes it difficult for the user to push the device along the floor. 
     In one embodiment, a debris containment mechanism, e.g., containment wipers or brushes may be provided near the clean-off brush. These durable brushes or wipers work to keep debris trapped inside a disposable cartridge and do not allow the debris to fall back onto the floor. They may aid slightly in cleaning of the roller as well. These could be executed in a variety of forms, perhaps, as plastic flaps molded into the base housing, extensions of the disposable cartridge, separate plastic film parts, rubber flaps, etc. 
     When in use, the inventive quick pickup device is moved across a surface to be cleaned in a back and forth motion. In one embodiment, the roller fits in a slot in the base. This preferably elliptical slot allows the roller to engage the wiper only in the forward stroke direction. In the pull back stroke, the roller is disengaged. 
     The inventive device preferably captures a variety of debris materials—hair, grass, inorganic, skin, sand, soil, food crumbs, etc. 
     The device may be used on hard floors, carpet, throw rugs, automobiles, upholstery, clothing, or any of a number of surfaces. 
     It is possible that other cleaning and fragrancing options may be included within the device. For example, steam cleaning technologies may be added, fragrancing may be added to the matrix gel or roller, disinfectant may be added to the roller or matrix as may a cleaning chemistry, a shine chemistry, etc. The matrix also may be constructed of water permeable bags of gel powder. 
     With additional reference now to  FIGS. 16-22 , another embodiment of a cleaning device  210  is illustrated. The cleaning device  210  includes a housing  212 . The housing  212  defines a pair of cavities, a forward cavity and a rearward cavity. The forward cavity houses a roller  214  that is rotatably secured to the housing  212  and the rearward cavity rotatably houses a pair of opposed wheels  216  at either end of the housing  212  and configured, along with the roller  214 , to facilitate movement of the cleaning device  210  over the surface to be cleaned. While the device  210  is not shown including a handle, it is understood that the device may include a handle similar to that shown in the previous embodiments for grasping by an operator for manipulation of the device  210 . 
     The housing  212  includes a lid member  218  situated at a forward end of the housing  212 , a base member  220  including a forward portion  222  and a rearward portion  224 , and a rear door member  226 . The lid member  218  may be generally dome-shaped to correspond to the shape of the roller  214  or may be any other suitable shape. The lid  218  also serves to define a chamber for collecting debris picked up by the roller  214 , which may then be emptied when the lid  218  is opened. The lid member  218  may be transparent and constructed out of plastic or may be generally opaque or any combination thereof. Understandably, the lid member  218  may be constructed from other materials including metals and the like. The base member  220  is coupled between the lid member  218  and the rear door member  226  and is configured to rotatably support the roller  214 . Moreover, the lid member  218  and the rear door member  226  are movably coupled to the base member  220  as will be articulated in addition detail herein. The rear door member  226  along with the base member  220  define the rearward cavity that houses the wheels  216  as previously discussed and defines a debris collection bin  211  for receiving the particulate matter picked up by the roller  214 . In particular, the rear door member  226  may define the debris collection bin and may be either rotatable about a pin or similar element to open the rear door member  226  for emptying the debris collection chamber or may be entirely removable from the base  220 . In this manner, the debris collection bin  211  may be carried away from the device  210  for disposing of the contents thereof. In one construction, the rear door member  226  may include a hook or similar structure configured to engage a portion of the base  220  and wherein the hook may be removably coupled to the base  220  for removal of the collection bin  211  from the base  220 . Moreover, the rear door member  226  may include a handle  227  or similar structure for grasping by an operator thereof for carrying the device  210  or for carrying the debris collection bin  211  as may be appreciated. The handle  227  may also facilitate opening of the rear door member  226 . 
     The roller  214  may be covered with or otherwise have adhered to it a material configured to pick up particulate matter when the roller  214  is applied to a surface to be cleaned. The material covering the roller  214  may be like that previously discussed herein. In one construction of the roller  214 , the roller  214  is covered with or is otherwise configured to rotatably carry and support a gel material. The gel material may include low acyl gellan and a high acyl gellan or gellan gum such as those produced by Kelocogel®. The combination of the two gels results in a durable and impact resistant gel while maintaining a relatively soft and wet surface that is adept at picking up dirt and other particulate debris. The formula of the gel may have a mix of both of the low and high acyl gellans at 2-4% total gum and more preferably at 4% total gum. A preservative may be added to the gel to prevent molding. Also, potassium sorbate or a similar compound may be added for the purpose of smoothing and providing a homogenous gellan during the mixing process as it is being hydrated. Other compounds such as deionized water, salt, and sorbitol solution may be added to the gel as desired. Other additives such as glycerin may be added to the gel to prevent the gel from drying out. Understandably, any number of similar such compounds may be used. In addition, the gel may be impregnated with any number of additives such as those for providing a fragrance, tackiness, or shininess or other additives such as anti-bacterial, fungicide, and other such cleaning solutions as are known in the art. 
     Any number of methods may be used to apply the gel to the roller  214 . In a first embodiment of the roller  214  of the present construction, a sheet of scrim material or a thin mesh may be provided and include a connecting arrangement on one side thereof such as, for example, Velcro or the like. The gel may then be tapped or otherwise embedded into the other side of the mesh for bonding thereto. The mesh sheet is then velcroed or otherwise connected to the roller substrate such that the gel side is provided on an external surface of the roller  214 . In another construction a scrim or mesh material may have the gel applied as previously described and the material may be glued or otherwise adhered to a tubular member such as a cardboard tube that is sized, shaped, and configured for being received over the roller substrate. In yet another method of applying the gel to the roller  214 , a thicker gauge plastic matrix is extruded as a cylinder having holes and the gel is cast onto the plastic cylinder as may be generally understood in the art. 
     The gel material of the roller  214  may be configured so that particulate debris of a given size or characteristic may be embedded therein during operation. That is, as the debris is picked up off the surface to be cleaned it is forced into the gel material through the subsequent contact between the roller  214  and the surface to be cleaned. In this manner, the external surface of the roller  214  may be kept relatively clean so that debris picked up is not transmitted back to the surface to be cleaned during subsequent applications. Other particulate debris may be of the size and characteristic that it will be deposited into the debris collection bin  211 . In particular, as the roller  214  rotates, that debris will be directed into the debris collection bin  211  that is positioned rearward of the roller  214  and forward of the rear door member  226 . 
     The roller  214  includes a pair of opposed ends  228  and  230  which may include a support structure for the roller  214  configured to couple the roller  214  to the housing  212 . In particular, each of the ends  228  and  230  may include an end cap  232  and  234  respectively coupled to the roller  212 . The end caps  232  and  234  may include respective projections  238  configured to be received by the base  220  of the housing  212 . In particular, the base  220  may include a hole, aperture, recess, or other such feature, collectively holes  242 , respectively, configured to receive the respective projections  238 . In this manner, the roller  214  is rotatable about a horizontal axis defined by the projections  238 . 
     The wheels  216  are secured within a rear portion of the housing  212  as previously indicated. The wheels  216  may include a single axle coupling the wheels  216  to one another or may each include an axle or projection  244  configured to engage a side wall of the rear door member  226 . The rear door member  226  may include a pair of corresponding holes, apertures, recesses, or the like for receiving the projections  244  for enabling rotation of the wheels  216  with respect thereto. The rear door member  226  may include a pair of opposed slots  246  corresponding with the locations of the wheels  216  and configured to rotatably support the wheels  216  therein. In this manner, the wheels  216  may project rearwardly from the rear door member  226  by a predetermined distance. 
     As indicated previously, the lid member  218  is movable relative to the base  220  of the housing  212 . The lid member  218  may include a pair of opposed recesses (not shown) on each end thereof for receiving a corresponding pin  250  of the base member  220 . The pins  250  may be carried by a clip member  252  configured to be selectively secured between the base  220  and the lid member  218  to selectively prevent the lid member  218  from rotating about the pins  250 . In particular, the clip members  252  may extend from a forward edge of the base member  220  toward the rearward end. The clip members  252  may include a notch  254  for engaging a pin  256  projecting from a respective side of the base  220 . To secure the lid member  218  to the base member  220 , the clip may be rotated about the pin  250  so as to engage the pin  256  with the notch  254  at its opposite end. To move the lid  218  relative to the base  220 , the clip member  252  may be rotated in the opposite direction so that the notch  254  is disengaged from the pin  256  so that the lid may then rotate about the pins  250 . 
     The base member  220 , as previously articulated, includes a forward portion  222  and a rearward portion  224  that are movably coupled to one another. In particular, the forward portion  222  and the rearward portion  224  may be hingedly coupled to one another by a hinge arrangement  258 . In particular, the forward portion  222  and the rearward portion  224  of the base  220  are coupled to one another so that the forward portion  222  may be moved between a first, locked position in which the roller  214  is secured to the base  220  as previously discussed and a second, unlocked position in which the forward portion  222  is rotated away from the roller  214  so that the projections  238  are disengaged from the holes  242 . In this manner, the roller  214  may be removed from the housing  212  for cleaning, disposal or replacement thereof. 
     The rear door member  226  is movably coupled to the base  220 . In particular, the rear door member  226  may be movably coupled to the rearward portion  224  of the base  220 . The rear door member  226  may be coupled to the base  220  by way of a hinge arrangement  260  disposed along a longitudinal axis of the device  210  and between the base  220  and the rear door member  226 . Thus, to rotate the rear door member  226  about the hinge arrangement  260 , the user may rotate the rear door member  226  about a horizontal axis to expose the rear of the device  210  and more particularly to enable the operator to empty the bin  211  located therein. The rear door member  226  may be latched to the base  220  to prevent accidental or unwanted opening thereof. In particular, the rear door member  226  may include a projection  262  disposed thereon that is configured to be engaged by a clip  264  having a notch  266  sized and shaped for engagement with the projection  262 . The clip  264  may be rotatable between a locked and unlocked position to secure the rear door member  226  relative to the base  220  or to free it relative thereto for rotation thereof for emptying of the bin  211  or for performing maintenance on the wheels  216  or the like. 
     With specific reference now to  FIG. 18 , a cross-sectional view of the roller  214  according to the present construction is provided. The roller  214  includes a base or substrate layer  270 , which may be plastic or any other suitable material for serving to support the rest of the roller  214 . A mesh or scrim layer  272  is applied to the substrate layer  270 . The mesh or scrim layer  272  may be carried by another intermediate material such as a cardboard tube or the like or it may be applied directly to the roller  214 . The mesh or scrim layer  272  supports a gel layer  274  adhered thereto as previously described. The gel layer  274  provides the external, surface-engaging portion of the roller  214  and is especially configured for picking up particulate debris as previously described. 
     With specific reference now to  FIG. 17 , the roller  214  is configured to rotatably engage a diverting member  276 , which is supported or carried by a lower portion  278  of the housing  212 . The diverting member  276  is configured to engage the roller  214  during operation so that particulate debris carried by the roller may be removed from the roller  214  and directed to the bin  211 . In this manner, the roller  214  is kept generally free of debris so that it may be used to subsequently pick up additional debris during operation. In at least one construction of the device  210 , the diverting member  276  is a brush including a number of bristles or similar elements configured to engage the debris on the roller  214  and configured to remove the debris from the roller  214  so that the debris is brushed into the debris collection bin  211 . The diverting member  276  may be held in a cantilevered fashion by a portion of the lower portion  278  so the free end of the diverting member  276  is engaged with the roller  214 . 
     During development, a tacky surface durability testing machine was created. A soil-depositing and pickup measuring machine was also developed. A tackiness testing device was also developed to help formulate a material with the right pickup characteristics. 
     Although the best mode contemplated by the inventors of carrying out the present invention is disclosed above, practice of the present invention is not limited thereto. It will be manifest that various additions, modifications and rearrangements of the features of the present invention may be made without deviating from the spirit and scope of the underlying inventive concept. 
     Moreover, the individual components need not be formed in the disclosed shapes, or assembled in the disclosed configuration, but could be provided in virtually any shape, and assembled in virtually any configuration. Furthermore, all the disclosed features of each disclosed embodiment can be combined with, or substituted for, the disclosed features of every other disclosed embodiment except where such features are mutually exclusive. 
     Various alternatives are contemplated as being within the scope of the following claims particularly pointing out and distinctly claiming the subject matter regarded as the invention.