Patent Publication Number: US-6986618-B2

Title: Advanced cleaning system

Description:
RELATED INVENTIONS 
   This Application is a Continuation of co-pending, related U.S. patent application Ser. No. 10/233,773 filed Aug. 30, 2002 entitled FLUID DISTRIBUTION NOZZLE AND STREAM PATTERN which is a Divisional Application of U.S. patent application Ser. No. 09/689,433 filed Oct. 11, 2000, issued Apr. 1, 2003 as U.S. Pat. No. 6,540,424 entitled ADVANCED CLEANING SYSTEM, which is related to, based on and claims priority of earlier filed U.S. Provisional Patent Applications Ser. Nos. 60/192,040 and 60/317,911 filed Mar. 24, 2000 and Sep. 6, 2001 respectively, and claims any and all benefits to which it is entitled therefrom. 

   BACKGROUND OF THE INVENTION 
   Cleaning devices and systems for use in the home, industrially or otherwise include a broad range of technology. With regard to hand-held, mop-like devices used by an individual, the prior art is replete with variations. Conventional floor, ceiling, wall or other surface mops typically have a rigid, elongated handle portion, the handle having a proximal and a distal end. The handle portion is held closer to the proximal end, while a cleaning head is placed at the distal end of the handle. Typically, mop heads for use indoors are about 3-4 inches wide and about 9-12 inches long, and they typically have a removable sponge or other type absorbent pad portion. As is well know, once a cleaning pad becomes worn out or soiled beyond utility, it is removed and replaced with a fresh cleaning pad. 
   Typically, a mop head is dipped into a pail or bucket containing water and a cleaning agent. The mop head is wrung out so as not to deposit too great an amount of cleaning fluid on the surface being cleaned. It would be highly useful to provide a hand-held mopping system with an on-board, disposable, rechargeable or replaceable fluid reservoir. 
   U.S. Pat. No. 5,071,489 issued Dec. 10, 1991 to Silvenis et al. teaches a floor cleaner using disposable sheets. The apparatus comprises a handle portion pivotally attached to a cleaning head member with a flat lower surface. The lower surface of the member has frictional means thereon which are intended to maintain a pre-moistened fabric sheet between the surface and an area to be cleaned. The frictional means are a series of raised portions, etc. 
   U.S. Pat. No. 5,609,255 issued Mar. 11, 1997 to Nichols teaches a washable scrubbing mop head and kit. The device and system contains a multi-part handle, head portion, and an attachable sponge mop pad. 
   U.S. Pat. No. 5,888,006 issued Mar. 30, 1999 to Ping et al. teaches a cleaning implement having a sprayer nozzle attached to a cleaning head member. Cleaning fluid sprays out of a sprayer nozzle portion attached to a cleaning head mounted at the base of a handle portion, the head portion mounted to the handle portion with a universal joint. 
   U.S. Pat. No. 5,953,784 issued Sep. 21, 1000 to Suzuki et al. teachers a cleaning cloth and cleaning apparatus. The apparatus includes a handle with a front, flat head section for insertion into a bag-like cleaning cloth. 
   U.S. Pat. No. 5,988,920 issued Nov. 23, 1999 to Kunkler et al. teaches a cleaning implement having a protected pathway for a fluid transfer tube. The cleaning implement has a fluid reservoir coupled to a dispenser with a universal joint, and a fluid transfer tube, the fluid transfer tube at least partially positioned to pass through the universal joint. 
   U.S. Pat. No. 5,960,508 issued Oct. 5, 1999 to Holt et al. teaches a cleaning implement having controlled fluid absorbency. U.S. Pat. No. 6,003,191 issued Dec. 21, 1999 to Sherry et al. teaches a cleaning implement. U.S. Pat. No. 6,048,123 issued Apr. 11, 2000 to Holt et teaches a cleaning implement having high absorbent capacity. Overall maximum fluid absorbencies, rates of absorbency, and squeeze-out rates are defined, and examples of materials which exhibit those types of behavior are provided. As best understood, these inventions are directed to the use of superabsorbent materials, and not the use of conventional, natural and synthetic materials. 
   A microfiber is atypically, and others are included herein as well, made of a polyester/polyamide blend that has a thickness finer than 1/100 of a human hair. In the industry of fibers and fabrics, the following classifications of fibers is considered standard: 
   
     
       
         
             
             
             
           
             
                 
                 
             
             
                 
               Yarn Count 
               Fiber Classification 
             
             
                 
                 
             
           
          
             
                 
                 &gt;7.0 dpf* 
               coarse fiber 
             
             
                 
               2.4-7.0 dpf 
               normal fiber 
             
             
                 
               1.0-2.4 dpf 
               fine 
             
             
                 
               0.3-1.0 dpf 
               microfiber 
             
             
                 
                 &lt;0.3 dpf 
               ultra-microfiber 
             
             
                 
                 
             
             
                 
               *dpf = denier per filament  
             
             
                 
               Note:  
             
             
                 
               A filament with a thickness of 1 denier corresponds to a yarn length of 9,000 meters/gram. Thus, a 0.2 denier fiber corresponds to a yarn length of 45 kilometers/gram  
             
          
         
       
     
   
   SUMMARY AND ADVANTAGES 
   The present invention is an advanced cleaning system comprising a handle portion, the handle portion having a proximal end and a distal end; a cleaning head portion, the cleaning head portion adapted for use with a removable cleaning pad; and a cleaning fluid reservoir fluidically coupled to the cleaning head portion such that cleaning fluid is controllably allowed to flow via gravity onto the surface to be cleaned adjacent the cleaning head portion. The cleaning system further comprises a nozzle portion mounted to the head portion. The cleaning system flow of cleaning fluid is a trickle. The head portion of the cleaning system is coupled to the handle portion with a yoke means. The cleaning system further comprises a cleaning pad. 
   In a preferred embodiment, the advanced cleaning system comprising: a handle portion, the handle portion having a proximal end and a distal end; and a cleaning head portion, the cleaning head portion adapted for use with a removable cleaning pad, the cleaning head portion having an essentially convex lower surface. 
   The present invention is a cleaning system comprising: a handle portion, the handle portion having a proximal end and a distal end; a cleaning head portion, the cleaning head portion adapted for use with a removable cleaning pad; and a cleaning fluid reservoir, the fluid reservoir fluidically coupled to the cleaning head portion; and means for controllably dispensing cleaning fluid from the fluid reservoir onto the surface to be cleaned adjacent the cleaning head portion. 
   The present invention is a cleaning system comprising: a handle portion, the handle portion having a proximal end and a distal end; a cleaning head portion, the cleaning head portion adapted for use with a removable cleaning pad; and means for removably coupling a cleaning fluid reservoir to the system for dispensing cleaning fluid adjacent the cleaning head portion. 
   The present invention is a kit for a cleaning system comprising: an handle portion, the handle portion having a proximal end and a distal end; a cleaning head portion; one or more removable cleaning pads; and means for removably coupling a cleaning fluid reservoir to the system for dispensing cleaning fluid adjacent the cleaning head portion. 
   The present invention is a method for applying a fluid to a surface with a tool comprising a handle portion, a head portion, and a fluid reservoir attached thereto, the method comprising the following steps: obtaining the handle portion; mechanically coupling a fluid reservoir to a handle portion and fluidically coupling the fluid reservoir to the head portion; controllably dispensing the fluid onto the surface; and distributing the fluid dispensed onto the surface with the head portion. 
   The present invention is a cleaning system including: one or more shaft sections of a handle sub-assembly; a holster sub-assembly which mounts on the handle sub-assembly; a yoke section located at a distal end of the one or more shaft sections of a handle sub-assembly; a head sub-assembly coupled to the one or more shaft sections of the handle sub-assembly adjacent the yoke section; and a cleaning fluid reservoir having a fluid delivery tube and a nozzle assembly, the nozzle assembly being mountable onto the head sub-assembly. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  is a representative exploded view of a preferred embodiment of a cleaning system  100  of the present invention. 
       FIG. 2  is a representative cross section view of a preferred embodiment of a cleaning system  100  of the present invention. 
       FIG. 3A  is a representative exploded view of a preferred embodiment of a head sub-assembly  300  of a cleaning system  100  of the present invention. 
       FIG. 3B  is a representative isometric view of a preferred embodiment of a pincher  308  of a head sub-assembly  300  of a cleaning system  100  of the present invention. 
       FIG. 3C  is a representative side view of a preferred embodiment of a pincher  308  of a head sub-assembly  300  of a cleaning system  100  of the present invention. 
       FIG. 3D  is a representative top view of a preferred embodiment of a pincher  308  of a head sub-assembly  300  of a cleaning system  100  of the present invention. 
       FIG. 3E  is a set of three representative side views of preferred embodiments of a convex lower surface  330  of a head sub-assembly  300  of a cleaning system  100  of the present invention. 
       FIG. 4A  is a representative view of a preferred embodiment of a cleaning pad  200  of a cleaning system  100  of the present invention. 
       FIG. 4B  is a representative cross section view of a preferred embodiment of a cleaning pad  200  of a cleaning system  100  of the present invention, such as taken along A—A. 
       FIG. 4C  is a representative view of a preferred embodiment of a cleaning pad or sheet  200  of a cleaning system  100  of the present invention. 
       FIG. 4D  is a representative cross section view of a preferred embodiment of a cleaning pad  230  of a cleaning system  100  of the present invention, such as taken along B—B. 
       FIG. 4E  is a representative cross section view of a preferred embodiment of a cleaning pad  240  of a cleaning system  100  of the present invention. 
       FIG. 4F  is a representative cross section view of a preferred embodiment of a cleaning pad  250  of a cleaning system  100  of the present invention. 
       FIG. 4G  is a representative cross section view of a preferred embodiment of a cleaning pad  200  and  4  different embossing patterns  203  overlaid the surface contacting portion  202  of a cleaning system  100  of the present invention. 
       FIG. 5A  is a representative exploded view of a preferred embodiment of a mid portion  400   a  of a handle sub-assembly  400  (as shown in  FIGS. 1 and 2 ) of a cleaning system  100  of the present invention. 
       FIG. 5B  is a representative isometric view of a preferred embodiment of a shaft section  410  of a handle sub-assembly  400  of a cleaning system  100  of the present invention. 
       FIG. 5C  is a representative isometric view of a preferred embodiment of a threaded shaft coupling member  430  of a handle sub-assembly  400  of a cleaning system  100  of the present invention. 
       FIG. 5D  is a representative isometric view of a preferred embodiment of a sleeve member  420  of a handle sub-assembly  400  of a cleaning system  100  of the present invention. 
       FIG. 5E  is a representative view of a preferred embodiment of a push rod  440  of a handle sub-assembly  400  of a cleaning system  100  of the present invention. 
       FIG. 5F  is a representative view of a preferred embodiment of a telescoping shaft section  410   a  of a handle sub-assembly  400  (as shown in  FIGS. 1 and 2 ) of a cleaning system  100  of the present invention. 
       FIG. 6A  is a representative isometric view with hidden lines of a preferred embodiment of a yoke section  450  and universal joint  302  of a handle sub-assembly  400  of a cleaning system  100  of the present invention. 
       FIG. 6B  is a representative exploded view of a preferred embodiment of a holster sub-assembly  470  of a cleaning system  100  of the present invention. 
       FIG. 6C  is a representative isometric view of left side cradle portion and right side cradle portion of a preferred embodiment of a holster sub-assembly  470  of a cleaning system  100  of the present invention. 
       FIG. 7A  is a representative exploded view of a preferred embodiment of a proximal end  501  of a handle sub-assembly  400  of a cleaning system  100  of the present invention. 
       FIG. 7B  is a representative section view of a preferred embodiment of a proximal end  501  of a handle sub-assembly  400  of a cleaning system  100  of the present invention. 
       FIG. 8A  is a representative exploded view of a preferred embodiment of a cleaning fluid reservoir  500  and valve sub-assembly  800  with flexible fluid delivery tubing  504  and nozzle assembly  700  of a cleaning system  100  of the present invention. 
       FIG. 8B  is a representative section view of a preferred embodiment of a cleaning fluid reservoir  500  and valve sub-assembly  800  with flexible fluid delivery tubing  504 . 
       FIG. 8C  is a representative upper isometric view of a preferred embodiment of a valve cap portion  860  of a valve sub-assembly  800  of a cleaning system  100  of the present invention. 
       FIG. 8D  is a representative lower isometric view of a preferred embodiment of a valve cap portion  860  of a valve sub-assembly  800  of a cleaning system  100  of the present invention. 
       FIG. 8E  is a representative isometric view of a preferred embodiment of a flex dome portion  830  of a valve sub-assembly  800  of a cleaning system  100  of the present invention. 
       FIG. 8F  is a representative isometric view of a preferred embodiment of a valve post  810  of a valve sub-assembly  800  of a cleaning system  100  of the present invention. 
       FIG. 8G  is a representative section view of a preferred embodiment of a valve post  810  of a valve sub-assembly  800  of a cleaning system  100  of the present invention. 
       FIG. 8H  is a representative detail view of a preferred embodiment of a dip tube  804  and duck bill valve  840  of a valve sub-assembly  800  of a cleaning system  100  of the present invention. 
       FIG. 8I  is a representative isometric view of another embodiment of a valve sub-assembly  800   a  of a cleaning system  100  of the present invention. 
       FIG. 8J  is a representative isometric section view of yet another embodiment of a valve sub-assembly  800   b  of a cleaning system  100  of the present invention. 
       FIG. 9A  is a representative upper side view of a preferred embodiment of a cleaning fluid reservoir  500  of a cleaning system  100  of the present invention. 
       FIG. 9B  is a representative lower side view of a preferred embodiment of a cleaning fluid reservoir  500  of a cleaning system  100  of the present invention. 
       FIG. 10A  is a representative upper isometric view of a preferred embodiment of a top portion  702  of a nozzle sub-assembly  700  of a cleaning system  100  of the present invention. 
       FIG. 10B  is a representative lower isometric view of a preferred embodiment of a top portion  702  of a nozzle sub-assembly  700  of a cleaning system  100  of the present invention. 
       FIG. 10C  is a representative upper isometric view of a preferred embodiment of a lower portion  704  of a nozzle sub-assembly  700  of a cleaning system  100  of the present invention. 
       FIG. 10D  is a representative lower isometric view of a preferred embodiment of a lower portion  704  of a nozzle sub-assembly  700  of a cleaning system  100  of the present invention. 
       FIG. 10E  is a representative top view of a preferred embodiment of a flow pattern  710  of cleaning fluid  502  flowing through the nozzle sub-assembly  700  of a cleaning system  100  of the present invention. 
       FIG. 10F  is a representative perspective view of a preferred embodiment of a flow pattern  710  of cleaning fluid  502  flowing through the nozzle sub-assembly  700  of a cleaning system  100  of the present invention. 
       FIG. 11  is a representative schematic view of a preferred embodiment of a method of assembly of a cleaning system  100  of the present invention. 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
   The description that follows is presented to enable one skilled in the art to make and use the present invention, and is provided in the context of a particular application and its requirements. Various modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principals discussed below may be applied to other embodiments and applications without departing from the scope and spirit of the invention. Therefore, the invention is not intended to be limited to the embodiments disclosed, but the invention is to be given the largest possible scope which is consistent with the principals and features described herein. 
   It will be understood that in the event parts of different embodiments have similar functions or uses, they may have been given similar or identical reference numerals and descriptions. It will be understood that such duplication of reference numerals is intended solely for efficiency and ease of understanding the present invention, and are not to be construed as limiting in any way, or as implying that the various embodiments themselves are identical. 
     FIG. 1  is a representative exploded view of a preferred embodiment of a cleaning system  100  of the present invention.  FIG. 2  is a representative cross section view of a preferred embodiment of a cleaning system  100  of the present invention. The cleaning tool  100  consists of a preferred embodiment of an absorbent cleaning pad or sheet  200  which is removably mounted onto a cleaning head assembly  300 . The head sub-assembly  300  is attached via universal joint  302  to a handle sub-assembly  400 . The handle sub-assembly  400  can be disassembled for easy storage. A fluid reservoir  500  which is intended to carry a liquid cleaning solution  502  can be mounted on the handle sub-assembly  400  within a suitably designed holster sub-assembly  600 . The fluid reservoir  500  has a flow delivery tube  504  which leads through a yoke portion on the handle sub-assembly to an fluid nozzle sub-assembly  700  which is mounted on the cleaning head sub-assembly  300  near the leading edge of the absorbent pad or sheet  200 . A trigger mechanism  402  located on the proximal end of the handle sub-assembly  400  actuates a valve system for providing flow of fluid from the fluid reservoir  500  through the nozzle sub-assembly  700 . 
   It will be understood that the mechanical linkages described herein between the shaft sections of the handle portion  400  can all be configured to be collapsible, dis-assemblable, telescoping, bayonet mounted and linked, etc. Such adaptability for the system is designed to enhance storage, packaging, and utility of the system  100  of the present invention. 
   In a preferred embodiment, the handle portion  400  comprises sections which interlock together in a bayonet-type configuration. The sections are each distinctively keyed, sized or shaped to confirm that the advanced cleaning system  100  is assembled properly. In a preferred embodiment, the system is a one-time assembly system, and is basically a no-disassembly system. The shaft section  400   a  and others, can be single assembly, over-torque-proof design, such as incorporating advanced, flanged or cone-shaped collars and keyed end sections, are also important and will be included within the present invention. In a preferred embodiment, the system is automatically self-adjusting, and the handle is self-aligning. The trigger draw can be set automatically, once the system is assembled. 
   In a preferred embodiment, the delivery tubing  504  comprises 0.25 inch inside or outside diameter plastic or ruber tubing. The internal diameter can be larger or smaller, as desired or suitable. The tubing  504  can be replaceable and/or reusable, as desired or appropriate. 
     FIG. 3A  is a representative exploded view of a preferred embodiment of a head sub-assembly  300  of a cleaning system  100  of the present invention. The head sub-assembly  300  consists of a pad portion  304 , a formed enclosure portion  306  and about 4 pinchers  308 . In a preferred embodiment, the length and width of the pad portion  304  will be about 11 inches and 4 inches, respectively. The enclosure portion  306  will be integrally or otherwise formed, and can be formed separately or as part of the pad portion  304 . It will be known to those skilled in the art that the overall size, shape and materials of construction of the pad portion  304  shall be varied upon the specific cleaning application intended. 
   As shown, nozzle snap  350  is positioned at the front, leading edge  352  of the pad portion  304 . The nozzle snap  350  can be replaced with any nozzle portion  700  (as shown best in  FIGS. 10A-10E ) retaining means. Furthermore, it is also an option to have the head assembly  300  configured such that flow of cleaning fluid  502  flows through the head assembly  300  and out the nozzle assembly  700 . 
     FIG. 3B  is a representative isometric view of a preferred embodiment of a pincher  308  of a head sub-assembly  300  of a cleaning system  100  of the present invention.  FIG. 3C  is a representative side view of a preferred embodiment of a pincher  308  of a head sub-assembly  300  of a cleaning system  100  of the present invention.  FIG. 3D  is a representative top view of a preferred embodiment of a pincher  308  of a head sub-assembly  300  of a cleaning system  100  of the present invention. Pinchers  308  and other mechanical securing means are well known in the art. Such pinchers  308  or other cleaning pad  200  (not shown) securing means will be formed of rubber or other flexible and resilient elastomeric or polymeric material. A circular rib  310  or other mechanical structure is useful for seating and securing the pincher  308  into the enclosure portion  306 . The precise design of the slots  312  cut into the top surface  314  of the pinchers  308  can be modified as desired or needed. 
     FIG. 3E  is a set of three representative cross section views of preferred embodiments of the convex lower surface  330  of a head sub-assembly  300  of a cleaning system  100  of the present invention, such as shown in at least  FIGS. 2 and 3A . It will be understood by those skilled in the art that as the cleaning system  100  of the present invention is used, in a typical floor or ground surface cleaning experience, the system is placed with the lower side  330  of the head assembly  300  facing downward. In the preferred embodiments shown, the lower side  332  of the head assembly  300  is slightly convex, the lower side  334  of the head assembly  300  is more convex, and the lower side  336  of the head assembly  300  is greatly convex. It will be understood that the radius of curvature of the lower surface  332  will be greater than the radius of curvature of lower surface  334  which will be also be greater than the radius of curvature of the lower surface  336 . 
   In the preferred embodiments shown in  FIG. 3E , it will be understood that during the cleaning experience, the leading edge  342  of the cleaning head assembly  300  is going to accumulate the greatest amount of debris initially. When the lower surface  330  of the cleaning head assembly  300  is essentially flat, the leading edge  342  of the head assembly  300  the leading edge  342  will become loaded with dirt very quickly as the head  300  is moved forward across the surface to be cleaned  712  (such as shown in FIGS.  10 E and  10 F). Thus, by providing an increasingly convex shaped lower surface  332 ,  334  or  336 , the leading edge will become decreasingly loaded earlier than the leading edge  342 . It will be understood, therefore, that by providing a hemispherically or wedge or other-shaped lower surface  330 , the loading of dirt and debris on the leading edge  342  as well as elsewhere on the lower surface  330 - 336  can be carefully controlled and optimized. It will be understood that the scope of the present invention includes flat as well as convex, wedge shaped, trapezoidal, stepped, or other shaped lower cleaning and contacting surface. 
   In a preferred embodiment, the cleaning head assembly  300  is optimized to prevent head flipping, such as when applying increased force to the head or when there is an increased frictional force between the cleaning head portion  300  and the floor or other surface being cleaned. In a preferred embodiment, the u-joint  302  is settled into a well or depression or cavity in the top portion of the head assembly  300 . It has been found that by bringing the point at which the u-joint  302  is placed relatively closer to the lower surface of the cleaning head assembly, flipping of the head is reduced. 
     FIG. 4A  is a representative view of a preferred embodiment of a cleaning pad  200  of a cleaning system  100  of the present invention.  FIG. 4B  is a representative cross section view of a preferred embodiment of a cleaning pad  200  of a cleaning system  100  of the present invention, such as taken along A-A. 
   With regard to  FIGS. 4A and 4B , the cleaning pad  200  consists of a surface (to be cleaned) contacting portion  202  which is the portion of the cleaning pad  200  which comes into direct contact with dirt and debris. This lower, surface contacting portion  202  lifts and locks dirt, dust, debris, hair, fluid, liquid, powder and other spills and materials and any other unwanted matter into itself. On one side of the surface contacting portion  202  there is a narrow strip of absorbent material  204  which has roughly the equivalent, or somewhat larger or somewhat smaller than, length and the width as the pad portion  304  of the head sub-assembly  300  (shown best in FIGS.  1 - 3 A). It will be understood that this absorbent material may be any known material which has the ability to absorb fluid, including superabsorbent materials. 
   Additionally, a polyethylene film backing layer  206  is bonded at points  208  to the surface contacting portion  202 . The film backing layer  206  can be formed of polyethylene or any suitable plastic, rubber, other elastomeric, polymeric or other flexible or otherwise suitable and desirable material which may be available. An advantage of using a fluid impervious material for the backing layer  206  is to prevent fluid leakage into and onto the head sub-assembly  300 . Therefore, the use of any essentially fluid or dirt impermeable or impervious material would be useful in this application as backing layer  206  and will, therefore, be claimed within the scope of this patent. It will be known o those skilled in the art that the bonding  208  may be formed by heat sealing or thermo-sealing, various adhesives, any suitable bonding or sealing method, stitching, etc. Thus, absorbent material  204  is retained in a fixed position relative to the lower portion  202  by bonded points  208 . 
   In a preferred embodiment, one or more portions of the cleaning pad  200  and/or the surface contacting portion  202  and/or the absorbent material  204  comprises a point unbonded web material as described in U.S. Pat. No. 5,858,112 issued Jan. 12, 1999 to Stokes et al. and U.S. Pat. No. 5,962,112 issued Oct. 5, 1999 to Haynes et al. or other material such as described by U.S. Pat. No. 4,720,415 issued Jan. 19, 1988 to Vander Wielan et al. or any superabsorbent material such as described in U.S. Pat. Nos. 4,995,133 issued February 1991 and U.S. Pat. No. 5,638,569 both issued to Newell, U.S. Pat. No. 5,960,508 issued Oct. 5, 1999 to Holt et al., and U.S. Pat. No. 6,003,191 issued Dec. 21, 1999 to Sherry et al., all of which are hereby expressly incorporated by reference herein, in their entirety. 
   In a preferred embodiment, the cleaning pad  200  and/or the surface contacting portion  202  comprises a spunbond fiber nonwoven web having a basis weight of approximately 68 grams per square meter. The spunbond fibers comprise bicomponent fibers having a side-by-side configuration where each component comprise about 50%, by volume, of the fiber. The spunbond fibers will comprise first and second polypropylene components and/or a first component comprising polypropylene and a second component comprising propylene-ethylene copolymer. About 1% or more or less of titanium oxide or dioxide is added to the fiber(s) in order to improve fiber opacity. The spunbond fiber nonwoven web s thermally bonded with a point unbonded pattern. The nonwoven web is bonded using both heat and compacting pressure by feeding the nonwoven web through a nip formed by a pair of counter-rotating bonding rolls; the bonding rolls comprise one flat roll and one engraved roll. The bonded region of the nonwoven web comprises a continuous pattern that corresponds to the pattern imparted to the engraved roll. Further, the bonded region is applied to the web when it passes through the nip. The bonded region will range between approximately about 27% to about 35% of the area of the nonwoven web and forms a repeating, non-random pattern of circular unbonded regions. Absorbency enhancing or superabsorbent materials, including superabsorbent polymers, powders, fibers and the like may be combined with the cleaning pad  200 . 
   In a preferred embodiment, the unbonded regions of the cleaning pad material  200  as described above are used as the surface  202  to be placed in contact with the surface to be cleaned  712 . These unbonded regions, laminated or pressed onto the layer of fibers which is opposite the unbonded region, are highly effective at lifting and locking the dirt, dust, debris, hair, spilled or applied fluids, cleaning solutions, etc. In preferred embodiments, the unbonded portions of the material can be imparted with a scrubby or scruffy surface treatment or composition of material, such as a powder, abrasive, cleaning agent, physical texturing of the fibers, hot air or fluid disruption of the unbonded fibers or other portions to enhance their cleaning capacity and efficacy. 
   In a preferred embodiment, the absorbent material  204  or elsewhere in the pad  200  comprises a laminate of an air-laid composite and a spunbond fiber nonwoven web. The nonwoven web comprises monocomponent spunbond fibers of polypropylene having a basis weight of approximately 14 grams per square meter. The air-laid composite comprises from about 85% to about % kraft pulp fluff and from about 10% to about 15% bicomponent staple fibers. The bicomponent staple fibers have a sheath-core configuration; the core component comprises polyethylene terephthalate and the sheath component comprises polyethylene. The air-laid composite has a basis weight between about 200 and about 350 grams per square meter and an absorbency of between about 8 and about 11 grams per gram. With regard to absorbency, the stated absorbency was determined under no load by placing a 4″×4″ sample in three inches of tap water for three minutes, the sample is then removed from the water and held by a comer allowing it to gravity drip for one minute. The (wet weight—dry weight)/dry weight yields the gram per gram absorbency. 
   In preferred embodiments of the cleaning pad  204 , PET or other hydrophillic fibers useful for scrubbing are employed. Additionally, nylon fibers are useful as they increase the coefficient of friction when they become wet. Increasing the coefficient of friction between the cleaning pad  200  and the surface being cleaned or coated is useful for better cleaning, coating performance. Any component of the cleaning pad  200  may be composed of microfibers and ultra-microfibers having a denier per filament (dpf) less than or equal to about 1.0. 
   In a preferred embodiment, the cleaning pad  200  is loaded or doped with micro-encapsulated amounts of cleaning compounds. The cleaning fluid itself  502  can be micro-encapsulated, and individual cleaning compounds can be used separately. These would includes, without limitation: anti-microbial, sanitizing and de-odorizing agents, cleaning agents, waxes, polishes or shining agents, softening agents, friction-enhancing compounds or surfaces, perfumes, etc. multi-phases systems may also be applied to a floor or other surface in this way. 
   When the cleaning pad  200  is positioned such that the pad portion  304  of the head sub-assembly  300  is aligned with the absorbent material  204 , and the film backing  206  is adjacent the lower surface of the pad portion  304  of the head subassembly  300 , it will be known to those skilled in the art that the rectangular sections  210  can be folded over the lengthwise edges  320  of the pad portion  304 , including the leading edge  352  and the back edge  354 , and pinched into the slotted portions  312  of the pinchers  308 . In this manner, the cleaning pad  200  will be retained on the head portion or assembly  300  in a desired position. 
   In a preferred embodiment, one or two sections of the absorbent material  202  are removed from the lengthwise portions  320 , resulting in one or more notches  260  in the cleaning pad means  200 . These notches  260  make it easier for the user to attach the cleaning pad or sheet  200  to the cleaning head assembly  300  without flow or delivery of cleaning fluid liquid  502  is not interrupted or impeded. Providing a double notched  360  cleaning pad or sheet  200  makes it possible for the user to orient the cleaning pad in at least two different configurations without obstructing flow of cleaning solution or fluid  502 . 
   As best shown in  FIG. 4A , notch  360  located on one or two side panels  210  such as indicated is particularly adapted for use when the contour of the head sub-assembly  300  and the position of the nozzle assembly  700  thereon requires clearance for delivery of cleaning fluid  502  therefrom. This cleaning fluid delivery notch  360  can be shaped or otherwise formed as desired, including perforated section which is torn out by the consumer, a slit portion, various shaped section cut-out, 
     FIG. 4C  is a representative view of a preferred embodiment of a cleaning pad or sheet  200  of a cleaning system  100  of the present invention. It will be understood that the cleaning pad  200  used with the cleaning system  100  of the present invention may be any useful or desirable cleaning pad or cloth, unwoven, non-woven or woven materials, co-materials, bonded or laminated materials, for any of various structurally distinct construction. Furthermore, any optimum or possible combination or synthesis of the various embodiments of cleaning pads shown in  FIGS. 1 ,  4 A- 4 F will be useful herein and, therefore, are included within the scope of this invention. 
     FIG. 4D  is a representative cross section view of a preferred embodiment of a cleaning pad  230  of a cleaning system  100  of the present invention, such as taken along B-B. It will be understood by the foregoing and the following that this invention includes providing a single layer portion of material for the cleaning pad  230  which is capable of being fluid absorbent and will scrub a surface while maintaining integrity. As described, the single layer portion of material cleaning pad  230  can be formed by any material or material-forming process known, including woven and non-woven materials, polymers, gels, extruded materials, laminates, layered materials which are bonded together integrally and thus form a co-material, fused materials, extruded materials, air laying, etc. additionally, materials which are useful include sponges, fabrics, etc. 
     FIG. 4E  is a representative cross section view of a preferred embodiment of a cleaning pad  240  of a cleaning system  100  of the present invention. The cleaning pad  240  is formed of discrete sections or portions. Peripheral edge sections  242  are useful for pinching into the pinchers  308  of the head assembly  300 . Adjacent to edge sections can be one or more lengthwise or widthwise orientated strips of material  244  which will have enhanced, preselected, predetermined and other desirable and advantageous properties for cleaning and mopping surfaces. 
     FIG. 4F  is a representative cross section view of a preferred embodiment of a cleaning pad  250  of a cleaning system  100  of the present invention. The cleaning pad  250  is formed of layers of material or is a single layer of material, as discussed above and elsewhere herein, but there is an enhanced surface contacting side  252 . This enhanced surface contacting layer or portion of cleaning pad  250  can be optimized for providing a cleaning fluid to the surface, such as with micro capsules or encapsulated fluids or agents. The enhanced surface  252  of the cleaning pad  250  can have scrubbing or abrasive qualities. The enhanced surface  252  can also be formed by a mechanical stamping, bonding, pressing, compression, extrusion, sprayed, sputtered, laminated or other surface forming or affecting process. 
   Furthermore, the upper layer  254  of the cleaning pad  250  will be formed of any suitable material, if different than that of the enhanced surface  252 . In general, however, the upper layer  254  can be formed of a fluid membrane or an impervious or absorbent or other non-absorbent material. Such upper layer  254  can be laminated, heat sealed, fused, compressed with, glued to or otherwise in contact with the surface contacting portion  252 . 
   It will be understood that various absorbent materials  204  are able to absorb and hold fluids, preventing dripping or “squeeze-out”, even under applied pressure. Thus, as a user uses the system  100 , the cleaning pad  200  will absorb spilled or applied fluids, including cleaning fluids, polishes, special surface coatings, etc. As the user continues through the cleaning experience, whereas conventional materials may tend to allow the absorbed fluid to be re-released, such as at the sides, front or back of the drawing movement of the head assembly  300 . This absorbent material  204  or other portion of the cleaning pad  200  will be enhanced to prevent release, drippage or squeeze-out of fluid absorbed therein. 
   In a preferred embodiment, an internal or external or combination cage, frame, ribcage, scrim or scrim assembly for providing an enhanced structure to the cleaning pad  200  will be used. This scrim or internal frame system for the cleaning pad  200  or the absorbent portion  204  thereof, is intended to provide a structure such that fluid can be absorbed into the cleaning pad  200  but fluid release is avoided. The scrim can also take the form of an open-textured or fishnet-type knit material. The open weave or mesh of the scrim material enhances the capacity to hold, lift and lock or other wise entrap and remove dirt, dust, hair, lint, fuzz, and other debris or soils to be removed by the system  100 . The scrim material, being a rigid, more durable, stiffer or thicker material than other portions of the cleaning pad  200 , will prevent the cleaning pad  200  from being compressed during use, or otherwise, such that the fluid absorbed into the absorbent portion  204  or elsewhere on the cleaning pad  200  will not be squeezed out. International Publication Number WO 98/42246 published 1 Oct. 1998 describes additional embodiments of a cleaning implement comprising a removable cleaning pad  200 , including a scrim and scrim portion for scrubbing, and is incorporated herein in its entirety by reference. 
   Thus, it will be understood that a preferred embodiment of the cleaning pad  200  of the present invention includes any suitable open pore, burlap or fishnet type sponge structure for snagging, or collecting particulate. Such cleaning pad  200  can be enhanced by providing embossing  203  (as best shown in  FIG. 4G ) and/or providing slits or pre-cut holes, openings, slots or other apertures, with or without removing material when creating those openings. The surface contacting portion  202  of a cleaning pad  200  can be sliced or slotted prior to assembly, if using more than one component. In a preferred embodiment, the cleaning portion  202  or other portion of the pad  200  is a robust material marketed by PGI as Lavette Super. 
   In a preferred embodiment, the cleaning pad or sheet  200  comprises strips or stripes of scrubbing or abrasive material. Such abrasive will be surface-safe, so as not to damage the finish, polish or other desirable qualities of a smooth floor or other surface to be cleaned In preferred embodiments, the cleaning pad  200  has an absorbent portion  204  which is comprised of a plurality of layers of absorbent material. The layers can be formed by individual slices, a single, rolled section of material which is simply flattened into a layered, absorbent portion  204 . As described, such can be formed of rayon, polyester, nylon material, pulp, combinations and composites and multi- and bi-component materials can be used. 
     FIG. 4G  is a representative cross section view of a preferred embodiment of a cleaning pad  200  and 4 different embossing patterns  203  overlaid the surface contacting portion  202  of a cleaning system  100  of the present invention. The surface contacting portion  202  can contain apertures  203  designed to scoop up and entrap dirt, hair, crumbs, and dust. Aperture designs  203  include many, such as those shown as A, B, C, and D. The aperture designs  203  shown are merely representative of a few of the possible designs, and while others will become apparent to those skilled in the art, they will be covered within the scope and purview of the present invention. 
     FIG. 5A  is a representative exploded view of a mid portion  400   a  of a handle sub-assembly  400  such as shown in  FIGS. 1 and 2  of a cleaning system  100  of the present invention. It will be known based on the foregoing and the following that the mid portion  400   a  of the handle sub-assembly  400  can have various embodiments, and but essentially a single preferred embodiment are described herein. The handle sub-assembly  400  consists of a shaft section  410  with a sleeve member  420  pressed onto place at either end. Further, it will be known to those skilled in the art that additional means for securing the sleeve members  420  into the ends of the shaft sections  410  will be available, including threaded ends, pins, welding, other types of press fittings, compression and expansion fittings or adhesives, and other common or custom coupling or attachment means, etc. 
     FIG. 5B  is a representative isometric view of a preferred embodiment of a shaft section  410  of a handle sub-assembly  400  of a cleaning system  100  of the present invention. The tubular shaft section  410  can be formed of any of a variety of materials and methods, including but not limited to the following materials and methods of forming those: glass, paper, cardboard, wood, any metals including steels, aluminum, titanium, alloys including chrome, molybdenum, plastics, composites including fiber glass, formica, natural and synthetic, man-made materials, canes, tubular members made of carbon components, crystals, fibers, alloys, etc., by extrusion, pressing, braking, rolling sheet portions, stamping, carved, otherwise shaped, formed, prepared and/or assembled. 
     FIG. 5C  is a representative isometric view of a preferred embodiment of a shaft coupling  430  of a handle sub-assembly  400  of a cleaning system  100  of the present invention.  FIG. 5D  is a representative isometric view of a preferred embodiment of a sleeve member  420  of a handle sub-assembly  400  of a cleaning system  100  of the present invention. 
   The threaded shaft coupling member  430  has one or more helically threaded portions  426  which align and thread into matching threaded portion  424  in the sleeve member  420 . It will be apparent, therefore, that by coupling multiple shaft sections  410  together with shaft coupling members  430  between different shaft sections  410 , a handle sub-assembly  400  having essentially any desired length or other geometry may be obtained. Additionally, an opening or hole  428  extends through the coupling member  430 . 
     FIG. 5E  is a representative view of a preferred embodiment of a push rod  440  such as of a mid-portion  400   a  handle sub-assembly  400  of a cleaning system  100  of the present invention. The push rod  440  extends through holes  422  passing through the sleeve members  420  and through the openings  428  through the coupling members  430 . Local deformations  442  at either end of the push rod  440  serve as detents or stops for controlling translation of the push rod  440  as desired. 
     FIG. 5F  is a representative view of a preferred embodiment of a telescoping shaft section  410   a  of a handle sub-assembly  400  (as shown in  FIGS. 1 and 2 ) of a cleaning system  100  of the present invention. 
   It will be understood by the foregoing and the following that the handle sub-assembly  400  of a cleaning system  100  can comprise one or more shaft sections  410  in a coupled, hinged, telescoping, collapsible, expanding or other configuration. A plurality of telescoping or collapsing shaft sections  410  in combination is space-saving, convenient to use and economical to manufacture, and is included within the scope of the present invention. 
     FIG. 6A  is a representative isometric view with hidden lines of a preferred embodiment of a yoke section  450  and a universal joint  302  of a handle sub-assembly  400  of a cleaning system  100  of the present invention. The yoke section  450  can be formed by injection molding, extrusion, etc. A coupling portion  452  is adapted for coupling to the universal joint  302  which couples to the head assembly  300  as shown in FIG.  1 . Thus, upward and downward motion of the handle assembly  400  can be achieved. Furthermore, by mounting the universal joint  302  onto the head assembly  300 , the universal joint  302  can swivel and the handle assembly  400  can move laterally. A central opening  490  through the yoke section  450  is particularly useful for passing a fluid delivery tube  504  through for attachment of a nozzle sub-assembly  700  to a head portion  300 . 
     FIG. 6B  is a representative exploded view of a preferred embodiment of a holster sub-assembly  470  of a cleaning system  100  of the present invention.  FIG. 6C  is a representative isometric view of left side cradle portion  472  and right side cradle portion  474  of a preferred embodiment of a holster sub-assembly  470  of a cleaning system  100  of the present invention. 
   The left side cradle portion  472  and right side cradle portion  474  can be injection or blow molded of rigid plastic. Tab portions, mating adhesion points, or other coupling means on the mating faces of the left side cradle portion  472  and right side cradle portion  474  couple the cradle portions together detachably or permanently. 
   As shown in  FIG. 6B , cylindrical slide member  460  fits within hollow internal opening  462  at the proximal end  494  of the tubular section  492 . Therefore, the slide member  460  is moved distally through the hollow internal opening  462  at the end of the tubular section  492 . Distally, it engages bearingly upon valve lever  478  or other structure extending trans-axially through or at least into tubular section  492  as shown. Proximally, a shaft coupling member  496  retains the slide member  460 , which is biased proximally by spring  498  or other biasing member, disposed within the opening  462  of tubular shaft section  492  between the proximal end portion  461  of the slide  460  and the biasing arm  475  of the lever portion  478 . 
     FIG. 7A  is a representative exploded view of a preferred embodiment of a proximal end  501  of a handle sub-assembly  400  of a cleaning system  100  of the present invention.  FIG. 7B  is a representative section view of a preferred embodiment of a proximal end  501  of a handle sub-assembly  400  of a cleaning system  100  of the present invention. 
   As shown, the right handle portion  510  couples with the left handle portion  512  through detachable or permanent mating means  514 . Together with an optional overmolded portion  520 , the three sections form an ergonomic hand grip for the distal end  500  of the handle assembly  400 . As shown, trigger member  402  is retained within the assembly  500  with trigger pin  560 . First spring means  562  biases the trigger in a set position. 
   As shown, upper portion  532  of the collar portion  530  engages the distal ends  534  of right and left handle portions  510  and  512 , respectively. Thus, handle coupling  540  is retained between the collar  530  and the right and left handle portions  510  and  512 , respectively, and slides within proximal shaft portion  564 . Pull rod  440  extends through handling coupling  540  and proximal shaft portion  564 . Second spring means  566  is positioned over the pull rod  440  retained in position between slide stop  442 . At a distal end, shaft sleeve  420 , as shown in  FIGS. 5A and 5D , couples to proximal shaft portion  564 , with shaft coupling member  430  threadingly engaged thereto, as shown in  FIGS. 5A and 5C . 
   As trigger  402  is squeezed manually or otherwise, bearing surface  542  on trigger  402  bears thrustingly upon proximal end  544  of handle coupling  540  to drive the handle coupling  540  distally in direction B. The distal end  546  of handle coupling  540  bears upon push rod  440  through second spring means  566 . In a preferred embodiment, the handle assembly  501  is automatically self-adjusting. Upon initial assembly, a first draw on the trigger  402  sets the correct distances for trigger travel as it translates to activation of the valve assembly  800  on the reservoir  500 . The action is a modified ratchet mechanism as found on caulking guns and other extrusion or pump devices. 
     FIG. 8A  is a representative exploded view of a preferred embodiment of a cleaning fluid reservoir  500  and valve sub-assembly  800  with flexible fluid delivery tubing  504  and nozzle assembly  700  of a cleaning system  100  of the present invention.  FIG. 8B  is a representative section view of a preferred embodiment of a cleaning fluid reservoir  500  and valve sub-assembly  800  with flexible fluid delivery tubing  504 .  FIG. 8C  is a representative upper isometric view of a preferred embodiment of a valve cap portion  860  of a valve sub-assembly  800  of a cleaning system  100  of the present invention.  FIG. 8D  is a representative lower isometric view of a preferred embodiment of a valve cap portion  860  of a valve sub-assembly  800  of a cleaning system  100  of the present invention.  FIG. 8E  is a representative isometric view of a preferred embodiment of a flex dome portion  830  of a valve sub-assembly  800  of a cleaning system  100  of the present invention.  FIG. 8F  is a representative isometric view of a preferred embodiment of a valve post  810  of a valve sub-assembly  800  of a cleaning system  100  of the present invention.  FIG. 8G  is a representative section view of a preferred embodiment of a valve post  810  of a valve sub-assembly  800  of a cleaning system  100  of the present invention.  FIG. 8H  is a representative detail view of a preferred embodiment of a dip tube  804  and duck bill valve  840  of a valve sub-assembly  800  of a cleaning system  100  of the present invention. 
   The valve sub-assembly  800  essentially comprises, in a preferred embodiment, a retaining cap portion  802  which fits over the neck  580  of a fluid reservoir Ascending, when in operating position, from the retaining cap portion  802  there is an elongated dip tube  804  with a duck-bill type flow restrictor or valve  806  at the distal end of the dip tube  804 . 
   The outer peripheral edge  822  of the valve cap portion  860  is seated onto an inner flange  824  of the retaining cap portion  802 . The valve post  810  is disposed within the central opening  826  through the valve cap portion  860 , and the flex dome portion  830  is mounted opposite the valve cap portion  860  with the valve post  810  extending through the assembly  800 . In the normally closed position, as shown in  FIG. 8C , a first sealing portion  812  of the valve post  810  mates with the upper lip  828  of the central opening  826  and prevents flow through the opening  818  and through the exit port  808 . 
   However, when the valve post  810  is moved upwards as shown by directional indicating arrow C, then the fluid  502  is allowed to flow through opening  818  and through exit port  808 . It will be understood that the flex dome portion  830  serves to maintain the valve assembly  800  in a normally closed position, i.e., with the first sealing portion  812  seated firmly against the upper lip  828  of the central opening  826 . As the flex dome  830  flexes, the valve post  810  moves axially within the central opening  826  through the valve cap portion  860 . 
   Thus, it will be apparent from the foregoing and the following that as cleaning fluid  502  flows out of the fluid reservoir  500 , in order to prevent creating a vacuum in the fluid reservoir  500  while dispensing fluid, thereby interfering with liquid flow by gravity, dip tube  804  which is seated into the side opening  840  allows air to enter the fluid reservoir  500 . Air vent opening  842  in flex dome portion  830  provides open communication with the atmosphere through dip tube  804 . The duck bill valve  806  or other fluid restrictor means prevents flow of cleaning fluid  502  into the dip tube  804  while at the same time permitting flow of air into the fluid reservoir  500  to replace the volume of cleaning solution or fluid  502  utilized. Thus it will be understood that the system  100  described herein operates by gravity flow of the cleaning fluid through the valve post  810  based upon a pressure head created by remaining fluid in the fluid reservoir  500 . 
     FIG. 8I  is a representative isometric view of another embodiment of a valve sub-assembly  800   a  of a cleaning system  100  of the present invention.  FIG. 8J  is a representative isometric section view of another embodiment of a valve sub-assembly  800   b  of a cleaning system  100  of the present invention. It will be understood that the valve assembly  800   a  includes the duck bill valve portion  806  without the dip tube portion  804  of the prior embodiments. In yet another preferred embodiment, the valve assembly  800   b  comprises a ball and spring-type check valve  807 . It will be understood that other means for venting the fluid reservoir  500  will also be included within the scope of the present invention. 
   In either case, the duck bill valve  806  or the ball and spring-type check valve  807  or other, as fluid flow trickles out of the system, the volume of the remaining fluid within the fixed-volume reservoir becomes smaller. In order to ventilate the reservoir  500  as the system is in operation, i.e., to maintain essentially atmospheric pressure therewithin as the cleaning fluid  502  flows out of the reservoir  500 , once a slightly negative pressure is achieved which is sufficient to overcome the closing force of the valve subassembly  800  or  800   a  or  800   b , flow of air from the atmosphere flows in a single direction into the reservoir  500 , thereby maintaining essentially atmospheric pressure within the reservoir  500  at all times. This system will also provide a uniform flow of cleaning fluid  502  out of the reservoir  500 . 
     FIG. 9A  is a representative upper side view of a preferred embodiment of a cleaning fluid reservoir  500  of a cleaning system  100  of the present invention.  FIG. 9B  is a representative lower side view of a preferred embodiment of a cleaning fluid reservoir  500  of a cleaning system  100  of the present invention. 
   It will be understood that the fluid reservoir  500  will contain any desired cleaning fluid or solution  502 , including water, etc. In the event that the fluid reservoir  500  is not used with the system  100 , in the example of spare or inventories of cleaning fluid reservoirs  500 , the reservoirs  500  can be closed using a standard or custom closure cap. 
   It will be understood by those skilled in the art, based upon the foregoing and upon the following, that the liquid cleaner  502  in the fluid reservoir  500  is essentially water, optionally with low levels of active and/or inactive ingredients. Such cleaning fluid system  502  will be comprised of surfactants and/or solvents, perhaps combined with a water soluble polymer, such as polyacrylate, which actually acts like a clear floor wax. Other cleaning enhancers, floor polishes, anti-streaking agents, fragrances, etc. may be useful in such system  502 . 
   In a preferred embodiment, the cleaning solution provides a no-rinse, single layer, one-step method for cleaning and polishing surfaces including walls, floors, ceilings, leaving a streak-free, non-tacky, clean surface non-attractive to dirt, soils, debris, etc. The device of the present invention can be used with a single, apply and wipe off solution that cleans without the need to rinse, and which leaves a shine and is not tacky or sticky. In a preferred embodiment, the cleaning fluid  502  comprises a sanitization fluid which serves to sanitize the surface being cleaned, coated or otherwise covered. In preferred embodiments, the cleaning fluid  502  comprises de-odorizing and/or odorizing components. 
   The advanced cleaning system of the present invention  100  will be particularly suited for cleaning, polishing, or applying a cleaning, shining or other fluid to wood, tile, marble, vinyl, floor covering, hard surfaces, asphalt tile, glass terrazzo, slate, rock, metallic, polymeric, composite or other surfaces. 
   In a preferred embodiment, the valve sub-assembly  800  of a cleaning system  100  of the present invention is designed such that air does not flow through dip tube  804  and across restrictor valve  806  into fluid reservoir  500  until a certain predetermined volume of liquid has been withdrawn from the reservoir. As the cleaning fluid  502  flows through the system and out the nozzle assembly  700 , a slight vacuum develops within the empty space above the remaining liquid  502  in the reservoir  500 , before air enters the system to fill the vacuum. The valve subassembly  800  becomes a flow control valve for the cleaning fluid  502  by controlling the air flow into the reservoir  500  and/or the cleaning fluid  502  flow out of the reservoir  500 . This method of controlling the flow of cleaning fluid through the system  100  will include other means for controlling the flow, including other control valves, manual, battery or electrically driven or actuated pumps, aerosol mechanism, etc., and will be included within the scope of this invention. 
   In a preferred embodiment, the reservoir means  500  is keyed, as shown, to fit into the holster assembly  600  in a particular way. This permits orientation of the valve assembly  800  in the holster assembly  600  as desired. The key means can also comprise a locking mechanism to retain the reservoir  500  within the holster portion  600 . This locking mechanism can be part of the reservoir  500 , such as a clamp, clip, groove or slot with mating portion on the handle portion  400  somewhere, or the locking means can be mounted to or otherwise part of the handle portion  400 , such as a clamp, spring-loaded clip, or equivalent secured to shaft section  410  or elsewhere on the system. Based on the foregoing, any combination of locking means and/or keying means for the reservoir  500  to the system  100  is included within the scope of the present invention. 
   As best shown in  FIGS. 1 ,  6 B,  6 C,  8 A and  9 A, the removable coupling means, a system for conveniently coupling and detaching the reservoir, comprises a shaped holster portion with a keyed locking means adapted to receive and lock into place a cleaning fluid reservoir with a correspondingly-shaped mating portion thereon. As shown in  FIG. 1 and 11 , the reservoir portion  500  seats inside the cradle or holster  600 . The removable reservoir  500  has an upper portion  506  having a slightly smaller geometry than its lower portion  508 , such that the reservoir location is positioned by stepped portion  548  within the cradle portion  600 . The outer edge  554  of the cradle portion  600  firmly seats the reservoir means  500 . An external groove  550  located on a peripheral portion of the cradle portion  600  with a correspondingly-shaped mating portion  552  on the reservoir  500  accommodates the elongated shaft section  400   a  or handle  400  at an angle as shown. 
   In a preferred embodiment, the reservoir  500  has 2 or more compartments, these can be used for containing various chemicals, compounds, cleaners, shining agents, water, etc. If there are 2 chambers, and there is a mixing or common sprayer head, then 2 different liquids can be dispensed, for example, an oxidant bleach in one, a chelating agent in the other (see U.S. Pat. No. 5,767,055 issued Jun. 16, 1998 to Choy, incorporated herein by reference, in its entirety). These can be individually or commonly actuated, with selection means adapted to the specific type of reservoir or multiple-reservoir system used. Multi-chamber reservoirs will also be included within the scope of the present invention. 
     FIG. 10A  is a representative upper isometric view of a preferred embodiment of a top portion  702  of a nozzle sub-assembly  700  of a cleaning system  100  of the present invention.  FIG. 10B  is a representative lower isometric view of a preferred embodiment of a top portion  702  of a nozzle sub-assembly  700  of a cleaning system  100  of the present invention.  FIG. 10C  is a representative upper isometric view of a preferred embodiment of a lower portion  704  of a nozzle sub-assembly  700  of a cleaning system  100  of the present invention.  FIG. 10D  is a representative lower isometric view of a preferred embodiment of a lower portion  704  of a nozzle sub-assembly  700  of a cleaning system  100  of the present invention. 
   In a preferred embodiment, ergonomic or high-friction finger grip portions  707  of lower nozzle portion  704  enhance ease of use. It will be understood that these may be material such as rubber or other suitable polymer or other material stubs, appliques or laminates. They could also comprise deformations or protrusions or other formed, shaped or integrated means, as shown. 
   The snap means  706  or other means for mounting the nozzle  300  to the head assembly  300  can be replaced with any equivalent, including o-ring mounts, snap mounts, screw in, threaded or bayonet mounted, with or without spring-loaded mechanism, as may be most desirable for enhancing utility. A break-away or pop-off, snap-on nozzle assembly  700  will prevent damage to the nozzle assembly  700 , the head assembly  300 , or to furniture, drapery, etc. Such will also be useful for storage of the system  100 . 
   As described above, manual activation of the finger trigger  402  causes pull rod  440  to be axially moved distally, the linkages between the proximal shaft section  564  and the mid section  400   a  and between the mid section  400   a  and the tubular shaft section  492  of the causing the pull rod  440  to bear distally upon slide  460 . As slide  460  is moved distally disposed within the opening  462  of tubular shaft section  492 , lever  478  is pivoted so as to bear upwardly against the flex dome portion  830  of the valve sub-assembly  800 . As the valve post  810  is un-seated, fluid flows downwardly, by force of gravity, from reservoir  500 , through valve post  810 , central opening  826  of valve cap  860 , flexible delivery tubing  504 , and nozzle assembly  700 . 
   It will be understood that in another preferred embodiment, the flex dome portion  830  can be replaced with a spring loaded or other biased, pumping means. 
   In a preferred embodiment, the seals of the valve post  810  can be enhanced, such as through the use of o-rings, flat seals, cone seals, quad surface and quad ring seals, gland seals, etc. 
   As described above, the present system is a gravity-fed system, although manually pumped and aerosol or other pressurized delivery systems are included within the scope of the present invention and are claimed herein. As cleaning fluid flows through delivery tube  504 , it will emerge from the nozzle assembly  700  as a trickle, cascade, dribble, drip, drizzle, drop, dispersion, seep, spray, stream, sprinkle or other emission having any predetermined or random flow pattern  710 . The flow patter  710  may also be varying or modulating. Either one or both of the upper portion  702  and the lower portion  704  of the nozzle assembly  700  has a means  706  for coupling the assembly  700  together, i.e., for coupling a first portion  702  and a second portion  704 , as well as for coupling a nozzle assembly  700  to the head sub-assembly  300 , including a snap, groove, bayonet mount, mating, helically threaded grooves, hook and loop material (Velcro®) or other attachment mechanism or means. The nozzle  700  could also, in a preferred embodiment, be formed integrally within the head assembly  300 , such as comprising one or more unitary molded portions, such that a delivery tube  504  plugs into or otherwise ports directly thereinto. 
   In a preferred embodiment, the nozzle  700  minimizes vapors, misting, fogging and/or other phase change loss of the cleaning solution during dispensing the fluid  502 . 
   Flow through the orifices  708  of the lower portion  704  or any other portion or portions of the nozzle assembly  700  results in a flow pattern  710  as shown in  FIGS. 10E-10F . In a preferred embodiment, the orifices  708  are about 0.5 millimeters in diameter, or more or less, and are directed directly outward, forward, downward, at an angle, to the front, back, side or other, etc. 
   In a preferred embodiment, the nozzle assembly  700  results in a 5-stream trickle pattern with the following specifications: 
                                               Stream   Azimuth Angle   Elevation Angle                          Single       0°   −27°           Pair     +/−43°   −19°           Pair   +/−71.6°   −15°                        
Based on the foregoing, it will be understood that within the scope of the present invention, the direction of the flow of cleaning fluid  502  as it emerges from an orifice  708  on the nozzle assembly  700  can vary from an angle between about parallel to the floor, or other surface to be cleaned, to about 30 degrees above parallel, to about 30 degrees below the parallel. In terms of flow pattern of the cleaning fluid  502 , the flow can be directed upward, to form an arching trickle or stream, or it can be directed parallel to the surface, or it can be directed somewhat toward the surface to be cleaned.
 
   In a preferred embodiment, the flow of cleaning fluid  502  through the nozzle assembly  700  is optimized to provide an even, uniform distribution, trickle pattern of cleaning fluid  502  in front of the cleaning head assembly  300 . The optimum cleaning fluid pattern is a circular area in front of and to the sides in front of the head portion  300 . In another preferred trickle distribution pattern, the cleaning fluid  502  is dispensed evenly, in a straight line, essentially in front of the cleaning head portion  300 . Flow of cleaning fluid  502  is adequate through all of the orifices  708 , rather than being insufficient at the sides. This embodiment is an improvement over systems in which trickle of fluid at the side portions might be slightly less or event totally insufficient, whereas the flow in the center of the nozzle is adequate, due to greater pressure drop through the outside orifices. 
     FIG. 10E  is a representative top view of a preferred embodiment of a flow pattern  710  of cleaning fluid  502  flowing through the nozzle sub-assembly  700  of a cleaning system  100  of the present invention.  FIG. 10F  is a representative perspective view of a preferred embodiment of a flow pattern  710  of cleaning fluid  502  flowing through the nozzle sub-assembly  700  of a cleaning system  100  of the present invention. 
   As viewed from above, as shown in  FIG. 10E , the flow pattern  710  is outwardly diverging. As viewed from the side in a cross section view, the flow pattern  710  is semi-cone shaped. It will be understood that while fluid may emerge at an angle directed toward or away from or perpendicular to the surface to be cleaned  712 , i.e., the floor, the system  100  described herein is primarily a gravity-fed system. In other words, fluid emanating from the nozzle assembly will have an initial direction of flow which may or may not include vertical components, i.e., the fluid directed downward perpendicular to the plane of the floor  712 , and would also have some horizontal components, i.e., directed either directly outwardly perpendicular to the surface to be cleaned  712  or directed somewhat toward the surface  712 . Furthermore, as a result of the force of gravity acting upon that fluid flow, the flow will develop vertical directional components therein. 
   Another unique aspect of the present invention is the virtually endless possibility of variations in flow pattern achievable using a nozzle assembly  700  such as shown and described herein. Any known or new and unique variation in nozzle design, including unitary design formed by molding, casting, turning or milling, or any other material additional or removal process, or any multi-section design formed by any of the preceding. Fluid can flow through one or more orifices  708  directed at any angle or angles toward the floor or other surface to be cleaned  712 , or at any angle or angles directly perpendicular to the surface  712 , or at any angle or angles between 0 and 90 degrees from directly up and away from the floor, although for a floor cleaning system, the latter type would potentially be of less utility. 
     FIG. 11  is a representative schematic view of a preferred embodiment of a method of assembly of a cleaning system  100  of the present invention. From the foregoing and the following, it will be understood that the cleaning system  100  of the present invention includes and claims to be a fully assembled system and method of use, as well as a system which can be assembled, disassembled, is telescoping or collapsible, or otherwise portable and/or compressible in overall largest dimension. 
   The present cleaning system  100  invention includes, as described herein, one or more proximal handle assemblies  500 , one or more shaft sections  410  of a handle sub-assembly  400 , a holster sub-assembly  470  or other similar functional means, a yoke section  450  or similar functional means, a head sub-assembly  300  or similar functional means, and a cleaning fluid reservoir  500  or similar functional means having a fluid delivery tube  504  or similar functional means and a nozzle assembly  700  which mounts onto the head assembly  300  or similar functional means. 
   In a preferred embodiment, a kit  100  for wet and/or dry cleaning includes one or more proximal handle assemblies  500 , one or more shaft sections  410  of a handle sub-assembly  400 , a holster sub-assembly  470  or other similar functional means, a yoke section  450  or similar functional means, a head sub-assembly  300  or similar functional means, and a cleaning fluid reservoir  500  or similar functional means having a fluid delivery tube  504  or similar functional means and a nozzle assembly  700  which mounts onto the head assembly  300  or similar functional means. 
   In a preferred embodiment, the system comprises a re-usable handle sub-assembly  400 , one or more replaceable cleaning pads  200 . Additionally, the handle sub-assembly  400  includes the holster sub-assembly  600 . The fluid reservoir  500  can be provided to the user sealed or temporarily closed. Additionally, the nozzle assembly  700 , fluid delivery tube  504  and/or valve assembly  800  can be replaceable or non-replaceable, and can be provided with every reservoir  500  cleaning fluid  502  refill, or separately or otherwise. 
   The method for assembling the kit  100  or cleaning system  100  of the present invention includes the following steps, not intended to be exhaustive, necessary, or all-inclusive and without any other imitations presumed thereby:
         coupling temporarily or permanently one or more shaft sections  410  together;   coupling temporarily or permanently one or more holster assemblies  600  to the system  100 ;   coupling temporarily or permanently one or more yoke sections  450  to the system  100 ;   coupling temporarily or permanently one or more head assemblies  300  to the system  100 ;   coupling temporarily or permanently one or more proximal handle assemblies  500  to the system  100 ;   installing temporarily or permanently one or more fluid reservoirs  500 , each having its own associated one or more fluid delivery tubes  504  and one or more nozzle assemblies  700 , into the one or more holster assemblies  600 ;   mounting temporarily or permanently one or more of the nozzle assemblies  700  of the one or more fluid reservoirs  500  onto the one or more of the head assemblies  300 ;   securing temporarily or permanently one or more cleaning pads  200  or cleaning cloths  200  to the one or more head assemblies  300  with the cleaning pad retaining means  308 ;   placing the cleaning pad  200  or cleaning cloth  200  onto the surface to be cleaned  712  and moving it back and forth one or more times over a portion of the surface to be cleaned  712 ;   dispensing an initial volume of cleaning fluid  502  onto the surface to be cleaned  712  and cleaning the surface to be cleaned  712  therewith;   dispensing additional volumes of cleaning fluid  502  onto the surface to be cleaned  712  and repeat cleaning the surface to be cleaned  712 ;   absorbing dust, dirt, debris, spilled fluids or dispensed cleaning fluid  502  onto the cleaning pad  200  or cloth  200 ;   replacing temporarily or permanently one or more cleaning pads  200  or cleaning cloths  200  on the one or more head assemblies  300  with the cleaning pad retaining means  308 ;   replacing temporarily or permanently one or more fluid reservoirs  500  into the one or more holster assemblies  600 ; and   disassembling the wet cleaning kit  100  or cleaning system  100  for transportation, storage, or as desired.       

   Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Although any methods and materials similar or equivalent to those described can be used in the practice or testing of the present invention, the preferred methods and materials are now described. All publications and patent documents referenced in the present invention are incorporated herein by reference. 
   While the principles of the invention have been made clear in illustrative embodiments, there will be immediately obvious to those skilled in the art many modifications of structure, arrangement, proportions, the elements, materials, and components used in the practice of the invention, and otherwise, which are particularly adapted to specific environments and operative requirements without departing from those principles. The appended claims are intended to cover and embrace any and all such modifications, with the limits only of the true purview, spirit and scope of the invention.