Patent Description:
Accessory tools for use with upright and portable extraction cleaners typically include a suction nozzle through which liquid and entrained debris are extracted from a surface during an extraction cleaning process. For example, common household extraction cleaning tasks can often be performed using a suitable cleaning fluid, e.g., water or a liquid cleaning solution containing surfactants, stabilizers, fragrances, and other active and inactive ingredients. Fluid-based or "wet" extraction cleaners include a housing that carries separate fluid delivery and fluid recovery systems. The fluid delivery system directs the cleaning fluid to the surface to be cleaned, while the fluid recovery system extracts spent cleaning fluid and entrained debris from the surface and deposits it in a recovery tank for disposal.

Within the fluid delivery system, the cleaning fluid is dispensed from the fluid supply tank. The cleaning fluid passes through a fluid supply conduit carried by a flexible accessory hose and is eventually distributed onto the particular surface to be cleaned, e.g., through one or more orifices of the accessory tool or using a spray nozzle. The dispensed cleaning fluid can be agitated using a brush or needles arranged on a working surface of the accessory tool to help loosen and capture embedded dirt, pet dander, and other debris. A suction source located aboard the extraction cleaner generates the above-described suction forces to extract spent cleaning fluid and entrained debris from the surface. <CIT> provides an example of a prior art system.

According to the present invention there is provided an accessory tool as claimed in claim <NUM>. Such a accessory tool is for use with an extraction cleaner having separate fluid delivery and recovery systems. Also disclosed herein are extraction cleaners equipped with such an accessory tool, as well as related methods for cleaning out the accessory tool and a connected accessory hose. Over time, fluid-based extraction cleaning processes can result in an accumulation of debris within the accessory tool and a flexible accessory hose connected thereto. As accessory tools can be equipped with a transparent or translucent outer lens, the accumulated debris may be visible to a user through the material of the lens, and may also emit unpleasant odors. It is therefore desirable to periodically remove the accumulated debris from the accessory tool and the accessory hose.

An aspect of the present invention includes an accessory tool for an extraction cleaner having an accessory hose, a fluid delivery system, and a fluid recovery system. The accessory tool in one or more configurations includes a lens, a tool body, a spray tip, and a cleanout assembly. The tool body is connectable to the fluid delivery system and the fluid recovery system via the accessory hose. The lens is coupled with the tool body, e.g., connected to or formed integrally therewith, so as to form a suction nozzle volume. The tool body defines a fluid channel opposite the lens that is in fluid communication with the suction nozzle volume. The spray tip is configured to dispense a cleaning fluid from the fluid delivery system onto a surface to be cleaned during a "spray" mode of the extraction cleaner. The cleanout assembly is connected to the tool body and configured to selectively divert the cleaning fluid from the spray tip and into the fluid channel during a "clean out" mode of the extraction cleaner to thereby clean the lens and the accessory hose.

The accessory tool in accordance with another configuration includes a lens, a tool body, a spray tip, a cleanout assembly, and first and second actuators. The tool body is connectable to the fluid delivery system and the fluid recovery system via the accessory hose. The lens and the tool body together form a suction nozzle volume. The spray tip is configured to dispense a cleaning fluid from the fluid delivery system during a "spray" mode of the extraction cleaner. The cleanout assembly in turn is configured to selectively divert the cleaning fluid from the spray tip and into the suction nozzle volume to thereby clean the lens and the accessory hose during a "clean out" mode of the extraction cleaner.

The cleanout assembly in this representative configuration includes a diverter sleeve and a rinse tip, with the rinse tip conducting the cleaning fluid into the suction nozzle volume during the "clean out" mode. The second actuator is connected to the tool body. The first actuator is configured to dispense the cleaning fluid from the fluid delivery system to the spray nozzle during the "spray" mode. The second actuator is also connected to the diverter sleeve and configured to translate over the spray tip to selectively divert the cleaning fluid from the spray tip during the "clean out" mode.

An extraction cleaner is also disclosed herein, a configuration of which includes an accessory hose, a fluid delivery system, a fluid recovery system, and an accessory tool. The accessory tool may include a lens and a tool body, with the tool body being connectable to the fluid delivery system and the fluid recovery system via the accessory hose. The lens and the tool body together form a suction nozzle volume, with the tool body including a rear tool wall that defines a transverse fluid channel. The transverse fluid channel is arranged parallel and adjacent to a nozzle opening of the suction nozzle volume.

As part of this non-limiting exemplary configuration of the extraction cleaner, a spray tip of the accessory tool is configured to dispense a cleaning fluid from the fluid delivery system onto a surface to be cleaned during a "spray" mode of the extraction cleaner. A cleanout assembly selectively diverts the cleaning fluid from the spray tip and into the suction nozzle volume via the transverse fluid channel during a "clean out" mode of the extraction cleaner to thereby clean the lens and the accessory hose.

The above summary is not intended to represent every possible construction or aspect of the subject invention. Rather, the foregoing summary is intended to exemplify some of the novel aspects and features disclosed herein. The above-summarized features and other features and advantages of the subject invention will be readily apparent from the following detailed description of representative examples and modes for carrying out the subject invention when taken in connection with the accompanying drawings and the appended claims.

The drawings described herein are for illustrative purposes only, are schematic in nature, and are intended to be exemplary rather than to limit the scope of the invention.

The appended drawings are not necessarily to scale, and may present a somewhat simplified representation of various preferred features of the present invention as disclosed herein, including, for example, specific dimensions, orientations, locations, and shapes. Details associated with such features will be determined in part by the particular intended application and use environment.

The subject invention may be embodied in many different forms. Representative examples are shown in the various drawings and described in detail below, with the understanding that the descriptions are exemplifications of the disclosed principles and not limitations of the broad aspects of the invention. To that end, elements and limitations described below, but not explicitly set forth in the claims, should not be incorporated into the claims, singly or collectively, by implication, inference, or otherwise. Moreover, the drawings discussed herein may not be to scale, and are provided purely for instructional purposes. Thus, the specific and relative dimensions shown in the Figures are not to be construed as limiting.

Additionally, unless specifically disclaimed: the singular includes the plural and vice versa; the words "and" and "or" shall be both conjunctive and disjunctive; the words "any" and "all" shall both mean "any and all"; and the words "including," "containing," "comprising," "having," along with permutations thereof and similar terms, shall each mean "including without limitation. " Further, the words "example" or "exemplary" are used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs. Rather, use of the word exemplary is intended to present concepts in a concrete fashion. Moreover, words of approximation, such as "about," "almost," "substantially," "generally," "approximately," and the like, may each be used herein in the sense of "at, near, or nearly at," or "within <NUM>-<NUM>% of," or "within acceptable manufacturing tolerances," or any logical combination thereof, for example.

For purposes of description herein, the terms "upper," "lower," "right," "left," "rear," "front," "vertical," "horizontal," and derivatives thereof, shall relate to the embodiment as oriented in <FIG>. Unless stated otherwise, the term "front" shall refer to a surface closest to an intended viewer, and the term "rear" shall refer to a surface furthest from the intended viewer. However, it is to be understood that the invention may assume various alternative orientations, except where expressly specified to the contrary. It is also to be understood that the specific structures and processes illustrated in the attached drawings, and described in the following specification are simply exemplary embodiments of the inventive concepts defined in the appended claims.

The terms "including," "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element preceded by "comprises a. " does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

As summarized above, it is desirable to prevent an accumulation of debris within an accessory tool and a flexible accessory hose of an upright or portable extraction cleaner. Such extraction cleaners are typically equipped to receive the accessory hose, with an opposing end of the accessory hose being connectable to the accessory tool via a fluid conduit piece or "wand". The accessory tool thus serves as a hand-maneuverable suction tool suitable for cleaning a surface (e.g., floors, stairs, furniture, drapes, etc.). The hardware solutions described in detail below are intended to help a user selectively remove accumulated debris from the accessory tool and the accessory hose in a user-friendly manner relative to traditional hose cleaning devices.

Referring to the drawings, wherein like reference numbers refer to the same or like components in the several Figures, and beginning with <FIG>, an accessory tool 10T configured as set forth in detail herein is usable with an extraction cleaner <NUM>, with the extraction cleaner <NUM> exemplified as an upright extraction cleaner <NUM> and a portable extraction cleaner <NUM>. Representative configurations can be found in <CIT>, <CIT>, and <CIT>.

The accessory tool 10T is selectively connectable to the extraction cleaner <NUM> via a flexible accessory hose <NUM> and a wand <NUM> (also see <FIG>), which is a conduit section serving as an intervening attachment piece for coupling the accessory tool 10T to the accessory hose <NUM>. As summarized above, an interior of the accessory tool 10T and an interior of the accessory hose <NUM>, over time and with extensive usage, can become coated with dirt, pet dander, hair, and other debris, with the accumulated debris in turn often emitting unpleasant odors. Additionally, an accumulation within the accessory tool 10T can obscure a user's view of the cleaning process. The present invention is therefore directed to tool-integrated solutions for removing accumulated debris in a user-friendly and time-efficient manner, with exemplary constructions of the accessory tool 10T described in detail below.

The extraction cleaner <NUM> depicted in <FIG> as contemplated herein includes a fluid recovery system <NUM> having a suction source (V) <NUM> for cleaning a surface <NUM> (e.g., carpeting, rugs, upholstery, drapes, etc.) and a fluid delivery system <NUM> for supplying an application-suitable cleaning fluid to the surface <NUM>. The accessory tool 10T within the scope of the present invention is selectively connectable to the extraction cleaner <NUM> via a flexible length of the accessory hose <NUM> to allow a user to position and maneuver the accessory tool 10T as desired during an extraction cleaning process. As part of this process, a diverter valve <NUM> or an accessory hose port of the fluid recovery system <NUM> may be used to fluidly connect the suction source <NUM> to a suction nozzle <NUM> of the extraction cleaner <NUM> (e.g., the upright extraction cleaner <NUM>) or to a suction nozzle <NUM> of the accessory tool 10T.

The extraction cleaner <NUM> in its various configurations may include a housing <NUM> and a handle <NUM> coupled or formed integrally therewith. The handle <NUM> of the portable extraction cleaner <NUM> in particular facilitates unit portability by allowing a user to lift and carry the portable extraction cleaner <NUM>. The upright extraction cleaner <NUM> for its part, of which the housing <NUM> acts as a lower housing that is pivotably coupled or connected to an upper housing <NUM>, may be coupled to a set of wheels <NUM> or another suitable surface drive mechanism to enable a user to roll the upright extraction cleaner <NUM> along the surface <NUM>. The fluid recovery system <NUM> carried by the housing <NUM> is in fluid communication with the suction nozzles <NUM> and <NUM>, with the suction nozzle <NUM> being an integral component of the accessory tool 10T.

The fluid recovery system <NUM> shown schematically in <FIG> includes the suction source <NUM>, such as a motorized fan assembly, which in turn is in fluid communication with the suction nozzles <NUM>, <NUM> and operable for generating a working airstream or airflow. Additionally, the fluid recovery system <NUM> can include a separator <NUM> formed in a portion of the recovery tank <NUM> for separating fluid and entrained debris from the working airstream.

The suction source <NUM> of <FIG> can be electrically coupled to a power source <NUM> (schematically represented as a power plug connectable thereto), such as a battery or by a power cord plugged into a household electrical outlet. A power switch <NUM> disposed between the suction source <NUM> and the power source <NUM> can be selectively closed by a user (e.g., upon pressing a vacuum power button), thereby activating the suction source <NUM> as needed or desired. Optionally, an agitator <NUM> can be provided adjacent to the suction nozzle <NUM> of the accessory tool 10T, and/or an agitator <NUM> can be provided adjacent to the suction nozzle <NUM> of the extraction cleaner <NUM> for agitating fluid and debris when cleaning the surface <NUM>. Non-limiting examples of the agitators <NUM>, <NUM> include polymeric bristles, bristle strips, tufts, brushes, needles, other projections, a rubber squeegee surface, and/or nub protrusions to help remove pet hair from upholstery during cleaning.

The fluid delivery system <NUM> is also shown schematically in <FIG>. The fluid delivery system <NUM> can include one or more fluid supply tanks <NUM> for storing a volume of a liquid cleaning fluid <NUM>. For instance, common household extraction cleaning tasks can often be performed using water or a water-based cleaning solution containing surfactants, stabilizers, fragrances, and other active and inactive ingredients. The cleaning fluid <NUM> therefore can be any application-suitable treating agent(s) or mixtures thereof. An optional heater <NUM> can be used for heating the cleaning fluid <NUM> prior to delivering the cleaning fluid <NUM> to the surface <NUM>. By way of example, an in-line heater variant of the heater <NUM> could be located downstream of the fluid supply tank(s) <NUM> and upstream of a fluid pump <NUM> as shown. Other types of heaters <NUM> can be used within the scope of the invention, such as heating via exhaust from the suction source <NUM>.

The fluid delivery system <NUM> depicted schematically in <FIG> also includes a fluid dispenser <NUM> for dispensing the cleaning fluid <NUM> onto the surface <NUM> as part of the normal floor cleaning operation of the extraction cleaner <NUM>, in this instance the upright extraction cleaner <NUM>. Although a single supply tank <NUM> is shown, those skilled in the art will appreciate that additional supply tanks <NUM> could be used without departing from teachings herein. For instance, one of the supply tanks <NUM> could store clean water, and one or more additional supply tanks <NUM> could store a detergent-based cleaning solution. Outlet flow from the different supply tanks <NUM> in such a construction could be mixed using a mixing valve or other suitable approaches to control a composition of the fluid ultimately dispensed to the surface <NUM>.

The fluid delivery system <NUM> of <FIG> can also include a flow control system <NUM>. In a possible construction, the flow control system <NUM> includes the above-noted fluid pump <NUM> (e.g., a centrifugal or solenoid pump) which is operable for pressurizing the fluid delivery system <NUM> to force the cleaning fluid <NUM> through a liquid supply conduit and ultimately out of the fluid dispenser <NUM> (e.g., through one or more spray tips <NUM>). A flow control valve <NUM> and an actuator <NUM> may be used to control this process.

For instance, the flow control valve <NUM> could be actuated via the actuator <NUM> via an electrical switch <NUM> disposed between the flow control valve <NUM> and the power source <NUM>. The electrical switch <NUM> can be selectively closed when the actuator <NUM> is activated, thereby powering the flow control valve <NUM> to an open position and thus allowing the cleaning fluid <NUM> to be dispensed. The accessory hose <NUM> is likewise coupled to the flow control valve <NUM> when the accessory hose <NUM> is connected to the extraction cleaner <NUM> such that the fluid delivery process described above temporarily diverts the cleaning fluid <NUM> to the surface <NUM> through the accessory tool 10T, as will now be described with reference to the remaining Figures.

Referring to <FIG>, the accessory tool 10T is shown coupled to the wand <NUM>. A cut line <NUM>-<NUM> is shown through a longitudinal centerline of the accessory tool 10T, with the cut line <NUM>-<NUM> used below to establish the cross-sectional views of <FIG> and <FIG>. The accessory tool 10T as contemplated herein includes a tool body <NUM> connected to a tubular handle <NUM>. The handle <NUM> in turn includes a latch feature or mechanism <NUM> for securing the handle <NUM> of the accessory tool 10T to the wand <NUM>. During an extraction cleaning process of the surface <NUM> performed using the accessory tool 10T (i.e., when the accessory tool 10T is securely attached to the extraction cleaner <NUM> of <FIG> via the accessory hose <NUM>), the cleaning fluid <NUM> of <FIG> enters the accessory tool 10T as indicted by arrow FF through a feed hose <NUM>. This occurs as airflow (indicated by arrow AA) generated by applied suction forces from the suction source <NUM>, and possible entrained fluid and debris, passes in the opposite direction toward the extraction cleaner <NUM> for storage and disposal. When the accessory tool 10T is securely connected to the wand <NUM>, and when the wand <NUM> is securely connected to the accessory hose <NUM>, a user manipulating the accessory tool 10T can more easily maneuver the accessory tool 10T to reach the surface <NUM> when cleaning stairs, the corners of a room, behind furniture, or when cleaning upholstery or drapes to name a few exemplary uses.

During ongoing use of the accessory tool 10T, the user is able to control delivery of the cleaning fluid <NUM> to the surface <NUM> by using a first actuator <NUM>, which may be referred to as a spray actuator <NUM>, disposed on the wand <NUM>. For example, the first actuator <NUM> could be constructed as a spray trigger as shown, which when depressed or otherwise activated has the effect of admitting the cleaning fluid <NUM> into a spray nozzle <NUM> and through a spray tip <NUM> to implement a "spray" mode of operation. The optional agitators <NUM>, for example, rubber or polymeric brushes, cones, needles, bristles, etc., may be disposed on a working surface <NUM> of the accessory tool 10T and as appreciated in the art may be used to scrub stubborn stains and help lift dirt and entrained debris from the surface <NUM>.

Temporary and selective diversion or redirection of the cleaning fluid <NUM> around or bypassing the spray tip <NUM> for the purpose of cleaning out the accessory tool 10T and the accessory hose <NUM> is also provided herein by a second actuator <NUM>, which may also be referred to as a tool actuator <NUM>, coupled to the accessory tool 10T. The second actuator <NUM> may be an actuatable or slidable lever feature or mechanism as shown. In the illustrated configuration, a user urges the second actuator <NUM> toward the tool body <NUM> (away from the wand <NUM>) to perform the "spray" mode. However, those skilled in the art will appreciate that the second actuator <NUM> could have additional or alternative configurations such as a similar actuatable lever that is urged toward the wand <NUM> instead of the tool body <NUM> when performing the "spray" mode.

Additional configurations of the second actuator <NUM> may be contemplated within the scope of the present invention. For instance, an alternative second actuator <NUM> as shown in <FIG> may include a sliding collar 50C. In such examples, a user could translate the sliding collar 50C toward the handle <NUM> (in a direction indicated by arrow BB) or away from the handle <NUM> (opposite the direction indicated by arrow BB) to alternatively bypass and block the spray tip <NUM>. Thus, the second actuator <NUM> can be any type of moveable, pivotable, rotatable, and/or slidable actuator that is coupled with the diverter sleeve <NUM> for corresponding movement with a diverter sleeve <NUM>, as described in detail herein and with particular reference to <FIG>. Such a diverter sleeve <NUM> can be disposed behind the spray tip <NUM> and moveable or slidable forward during the "clean out" mode, or the diverter sleeve <NUM> can be disposed forward of the spray tip <NUM> and moveable or slidable rearward during the "clean out" mode in possible constructions. Delivery of the cleaning fluid <NUM> during such a mode, as described in detail below, is facilitated by a rinse tip <NUM> and a transverse fluid channel <NUM>.

To assist a user in viewing the ongoing cleaning process, the tool body <NUM> of <FIG> and <FIG> can be constructed at least partially from a transparent or translucent material such as plastic (e.g., polypropylene or polyethylene). For instance, the tool body <NUM> may be coupled to, attached to, or formed integrally with a lens <NUM>, through which the user is able to view the extracted cleaning fluid <NUM> and debris being suctioned away from the surface <NUM>. The accessory tool 10T also includes the suction nozzle <NUM> described above with reference to <FIG>, with the suction nozzle <NUM> being disposed adjacent to the working surface <NUM> of the tool body <NUM> and proximate to the optional agitators <NUM>. Various locations, shapes, and sizes of the suction nozzle <NUM> are possible in different configurations, with a typical construction being a relatively thin slot-like opening optimized for generating a vacuum or suction effect and lifting fluids and debris from the surface <NUM>, as appreciated in the art.

Referring now to <FIG>, the accessory tool 10T in another representative configuration includes the lens <NUM>, the tool body <NUM>, the spray nozzle <NUM> having the spray tip <NUM>, and a cleanout assembly <NUM>. The tubular handle <NUM> of the tool body <NUM> is connectable to the fluid delivery system <NUM> and the fluid recovery system <NUM> via the wand <NUM> (<FIG>) and the accessory hose <NUM> (<FIG>) as noted above. The lens <NUM> in turn is connectable to the tool body <NUM> to form a suction nozzle volume 10V therebetween, which is viewable via the lens <NUM>, and with the tool body <NUM> defining the transverse fluid channel <NUM> opposite the lens <NUM> and in fluid communication with the suction nozzle volume 10V. The transverse fluid channel <NUM> is on an opposing surface of the suction nozzle volume 10V relative to an inner surface of the lens <NUM>. As used herein, "transverse" refers to a general direction of the transverse fluid channel <NUM> relative to a width (W) of the accessory tool 10T and lens <NUM> (i.e., arranged across the width (W) of the accessory tool 10T and the lens <NUM>).

The spray tip <NUM> is configured to dispense the cleaning fluid <NUM> from the fluid delivery system <NUM> onto the surface <NUM> of <FIG> during the aforementioned "spray" mode. The cleanout assembly <NUM>, shown in detail in <FIG> and <FIG>, is coupled to the tool body <NUM> and configured to selectively divert or redirect the cleaning fluid <NUM> around or from the spray tip <NUM>, into the transverse fluid channel <NUM>, and ultimately into the suction nozzle volume 10V during the "clean out" mode to thereby flush debris from the lens <NUM>, the tool body <NUM>, and the accessory hose <NUM>.

The tool body <NUM> of <FIG> includes a rear tool wall <NUM> positioned opposite the lens <NUM> to define the suction nozzle volume 10V. In the configurations described below, the rear tool wall <NUM>, which may be angled/sloped as shown or vertical, partially defines the transverse fluid channel <NUM>, which in turn is arranged parallel to and adjacent to the suction nozzle <NUM> forming an inlet or a nozzle opening to the suction nozzle volume 10V. The cleanout assembly <NUM> as contemplated herein also includes a sprayer tube <NUM> having the aforementioned spray tip <NUM>, which may be a cylindrical piece of plastic or metal with opposing first and second ends 65A, 65B, respectively. During the contemplated "spray" mode, the cleaning fluid <NUM> passing into the accessory tool 10T enters the sprayer tube <NUM> through its end 65A and is dispensed onto the surface <NUM> through the spray tip <NUM>, forward of the spray nozzle <NUM>, by action of the first actuator <NUM> (<FIG>).

During the "clean out" mode, the diverter sleeve <NUM> (also see <FIG> and <FIG>) translates or slides over the sprayer tube <NUM> and the spray tip <NUM>, thereby blocking the spray tip <NUM>. In the non-limiting construction of <FIG>, a second actuator 500A is used for this purpose in which a first tab <NUM> disposed within a recess <NUM> on the handle <NUM> engages the diverter sleeve <NUM> via a second tab <NUM>, with the first tab <NUM> being translated by the user to move the diverter sleeve <NUM>. The accessory tool 10T of <FIG>, however, may be equipped with an alternative second actuator (e.g., the second actuator <NUM> or <NUM> described above) within the scope of the present invention.

To assist in the desired action, the diverter sleeve <NUM> in the representative example of <FIG> may be connected to the tool body <NUM> via a trigger sleeve <NUM>, a spring clip <NUM>, and a coil spring <NUM>, or using other suitable attachment and biasing features. In the illustrated examples, the optional agitators <NUM> noted above are connected to or integral with a brush plate <NUM> and securely connected or bonded to the tool body <NUM> (see <FIG>), with other variations of the accessory tool 10T possibly omitting the agitators <NUM> or using different configurations thereof.

Referring still to <FIG>, the cleanout assembly <NUM> can also include the rinse tip <NUM>. The rinse tip <NUM> is configured to direct or conduct the cleaning fluid <NUM> toward and into the transverse fluid channel <NUM> during the "clean out" mode in the illustrated construction. As will be described below, the rinse tip <NUM> defines or is connected to a downward fluid passage <NUM> that intersects the transverse fluid channel <NUM>, such that the cleaning fluid <NUM> fed through the sprayer tube <NUM> ultimately exits the second end 65B of the sprayer tube <NUM>, enters the fluid passage <NUM>, and passes into the transverse fluid channel <NUM>. As will also be described below with reference to <FIG>, the transverse fluid channel <NUM> in particular is configured to create low-pressure zones within the suction nozzle volume 10V to help distribute the cleaning fluid <NUM> across the width (W) of the lens <NUM> when the fluid recovery system <NUM> applies a suction force to the suction nozzle volume 10V.

<FIG> and <FIG> are cross-sectional views of the accessory tool 10T taken along cut line <NUM>-<NUM> of <FIG>, with actuation via any of the aforementioned approaches, including that of <FIG>. As shown, the tool body <NUM> and the handle <NUM> contains or defines a fluid delivery pathway <NUM> and an airflow pathway <NUM>. The fluid delivery pathway <NUM> is configured to connect to the fluid delivery system <NUM> via the wand <NUM> and accessory hose <NUM>, while the airflow pathway <NUM> is configured to connect to the fluid recovery system <NUM>, likewise via the wand <NUM> and the accessory hose <NUM>. Thus, the fluid delivery pathway <NUM> carries the cleaning fluid <NUM> (arrow FF) and the airflow pathway <NUM> carries the airflow (arrow AA). The spray tip <NUM> is in fluid communication with the fluid delivery pathway <NUM>, with the cleaning fluid <NUM> ultimately passing through and out of the spray tip <NUM> or bypassing or being redirected from the spray tip <NUM> depending on the operating mode, of which there are at least two: (<NUM>) the "spray" mode (<FIG>), and (<FIG>) the "clean out" mode (<FIG>). Each operating mode will now be described in further detail.

SPRAY MODE: In the "spray" mode performed using the non-limiting example of <FIG>, a user depresses or otherwise activates the first actuator <NUM> shown in <FIG>. During this mode, the cleaning fluid <NUM> travels through the fluid delivery pathway <NUM> and into the first end 65A of the sprayer tube <NUM>, an outer diameter of which may be fluidly sealed via multiple O-rings <NUM> or seals. The cleaning fluid <NUM> exits the spray tip <NUM> and is dispensed onto the surface <NUM>. The diverter sleeve <NUM> is in a spray position 83a, or an open position 83a, that allows the cleaning fluid <NUM> to exit the spray tip <NUM> and be directed to the surface <NUM>.

While the spray tip <NUM> is shown as an orifice in <FIG>, those skilled in the art will appreciate that various nozzles may be attached to the spray tip <NUM> to provide a desired or selectable fluid distribution pattern or direction. Agitation of the dispensed cleaning fluid <NUM> via the optional agitators <NUM> may be performed to lift and extract debris from the surface <NUM>, with the spent cleaning fluid <NUM> and entrained debris being suctioned away through the suction nozzle <NUM>, through the suction nozzle volume 10V, and into the airflow pathway <NUM>. The recovered cleaning fluid <NUM> and debris can ultimately be directed to a recovery tank.

CLEAN OUT MODE: Referring to <FIG>, when the user actuates the second actuator 500A of <FIG> or one of the other disclosed second actuators <NUM>, <NUM>, an applied actuation force is imparted to the diverter sleeve <NUM>. This action causes the diverter sleeve <NUM> to translate over the spray tip <NUM> and move the diverter sleeve <NUM> from the spray position 83a to a clean out position 83b, or a closed position 83b, covering or blocking the spray tip <NUM>. As a result, the cleaning fluid <NUM> is temporarily diverted from or around the spray tip <NUM> and travels down the length of the sprayer tube <NUM>. The cleaning fluid <NUM> is diverted along an alternative route from the spray tip <NUM>, through a diverter orifice <NUM> or a sprayer passage inlet <NUM> defined by the sprayer tube <NUM>, and to a sprayer tube passage <NUM>. This alternative route generally retains the cleaning fluid <NUM> in the accessory tool 10T.

Following the alternate route, the cleaning fluid <NUM> passes through the sprayer tube passage <NUM> and exits the second end 65B. From this exit point, the dispensed cleaning fluid <NUM> enters the rinse tip <NUM> and is directed through the downward fluid passage <NUM>. The cleaning fluid <NUM> then enters the transverse fluid channels <NUM> (see <FIG>, <FIG>, and <FIG>), is drawn into the suction nozzle volume 10V, and is extracted through the airflow pathway <NUM> via the suction forces applied by the suction source <NUM>. Accordingly, the cleaning fluid <NUM> flows along the length of the accessory tool 10T to be drawn through the suction nozzle volume 10V, drawing debris materials from the suction nozzle volume 10V to the airflow pathway <NUM> to clean out the suction nozzle volume 10V.

<FIG> illustrates a possible construction of the sprayer tube <NUM> in which the diverter sleeve <NUM> is arranged to selectively uncover the spray tip <NUM>, which as shown may be flanked by O-rings <NUM> for proper fluidic sealing. When the diverter sleeve <NUM> is in the clean out position 83b, the diverter sleeve <NUM> covers the spray tip <NUM>, limiting or preventing the cleaning fluid <NUM> from being dispensed onto the surface <NUM>. The cleaning fluid <NUM> is diverted from the spray tip <NUM> to the sprayer passage inlet <NUM> and to the sprayer tube passage <NUM>. The sprayer passage inlet <NUM> may be configured as a circular, square, or other shaped aperture extending from an outside surface of the sprayer tube <NUM> to the sprayer tube passage <NUM>. The O-rings <NUM> provide a seal around the sprayer passage inlet <NUM> to force or direct the cleaning fluid <NUM> through the sprayer passage inlet <NUM>, to the sprayer tube passages <NUM>, and ultimately to the suction nozzle volume 10V.

Referring to <FIG>, the inner surface of the lens <NUM> is flushed, along with the insides of the wand <NUM> and the length of the accessory hose <NUM> located downstream of the tool body <NUM> due to the dispensed cleaning fluid <NUM> circulating within and being drawn through the suction nozzle volume 10V, the wand <NUM>, and the accessory hose <NUM>, in particular. The provided operating mode is therefore described herein as being a "clean out" mode separate from the "spray" mode of <FIG>. The rinse tip <NUM> is therefore configured to conduct the cleaning fluid <NUM> into the suction nozzle volume 10V during the "clean out" mode. Those skilled in the art will appreciate that other approaches could be taken to delivering the cleaning fluid <NUM> to the suction nozzle volume 10V within the scope of the invention (e.g., through one or more spray outlets formed in the rinse tip <NUM> or the rear tool wall <NUM>) and therefore the representative constructions described herein as intended to illustrate a few possible implementations.

Referring still to <FIG>, and as shown in <FIG> and <FIG>, the tool body <NUM> includes the rear tool wall <NUM>. The rear tool wall <NUM>, which serves as a rear wall of the tool body <NUM> when viewed by a user through the lens <NUM> of <FIG> and <FIG>, defines the transverse fluid channel <NUM>. The transverse fluid channel <NUM> in turn is arranged parallel to and adjacent to the suction nozzle <NUM> to the suction nozzle volume 10V. During the "clean out" mode described above and depicted in <FIG>, the cleaning fluid <NUM> exits the sprayer tube <NUM> and passes into the rinse tip <NUM> at a fluid junction <NUM> between the end 65B of the sprayer tube <NUM> and the rinse tip <NUM>. For example, the fluid junction <NUM> may be a mating portion of the rinse tip <NUM> configured to receive the end 65B of the sprayer tube <NUM>, as shown in <FIG>.

From the fluid junction <NUM>, the downward fluid passage <NUM> defined within the rinse tip <NUM> conducts the cleaning fluid <NUM> as a downward fluid stream (indicated by arrow DD) into the transverse fluid channel <NUM> situated below the fluid junction <NUM>. As the cleaning fluid <NUM> enters the transverse fluid channel <NUM>, the fluid stream (indicated by arrow DD) is divided and guided into and along the transverse fluid channel <NUM> in approximately equal volumes. The transverse fluid channel <NUM> may therefore be thought of as two transverse fluid channels <NUM> arranged end-to-end as shown. The transverse fluid channel <NUM> is configured such that opposing low-pressure zones <NUM> are created as the airflow (indicated by arrow AA) through the suction nozzle <NUM> passes over the transverse fluid channel <NUM>. As a result, a divided fluid stream (indicated by arrow LL) of the cleaning fluid <NUM> contained in the transverse fluid channel <NUM> is pulled outward toward edges 10E of the tool body <NUM> and is eventually drawn upward and out through the airflow pathway <NUM> of <FIG> and <FIG>. This action has the desirable effect of rinsing or flushing the lens <NUM>, the rear tool wall <NUM>, and eventually the wand <NUM> and the accessory hose <NUM>.

Referring now to <FIG>, <FIG>, the rinse tip <NUM> may include an inlet tube <NUM>, which may be a circular extension or flange defining therein the fluid junction <NUM>, and a conduit body <NUM> that is coupled to or formed integrally with the inlet tube <NUM>. Cleaning fluid <NUM> (<FIG>) entering the fluid junction <NUM> ultimately flows into the fluid passage <NUM> and downward to an elongated fluid outlet <NUM>, the latter of which is shown in <FIG> and <FIG>. Exiting cleaning fluid <NUM> thereafter spills from the fluid passage <NUM> into the transverse fluid channel <NUM>.

<FIG> depicts a possible geometry of the transverse fluid channel <NUM> suitable for creating the low-pressure zones <NUM> of <FIG>, in this case as depressions in the airflow (arrow AA) of the suction nozzle volume 10V, the latter of which is shown in <FIG> and <FIG>. The transverse fluid channel <NUM> includes a radiused channel portion <NUM> and a forward-sloping sloped wall <NUM> that is contiguous with the radiused channel portion <NUM>. The sloped wall <NUM> meets with the rear tool wall <NUM> of the tool body <NUM>, as is likewise shown in <FIG>. Therefore, the airflow (indicated by arrow AA) passes from the suction nozzle <NUM> of <FIG>, upward over an elongated lip <NUM> disposed forward of the radiused channel portion <NUM>, and along the rear tool wall <NUM> of the tool body <NUM>, thereby drawing out and distributing cleaning fluid <NUM> from within the transverse fluid channel <NUM>. While other geometries may be used within the scope of the invention, the particular geometry of <FIG> has the benefit of creating a trough along the rear tool wall <NUM> that allows accumulated fluid to be dispersed toward the edges 10E before being extracted via the airflow (arrow AA), thus creating a dispersed flow field useful for cleaning the lens <NUM> and rear tool wall <NUM> of <FIG> and <FIG>.

Referring to <FIG>, an alternative configuration of an accessory tool 110T is illustrated that is substantially similar to the configurations illustrated in <FIG>, with differences being seen primarily in a transverse fluid channel <NUM>, a rinse tip <NUM>, and an airflow pathway <NUM>, among others, as described herein. In the description of the accessory tool 110T, where possible, reference numerals were used that were additive by multiples of one hundred of reference numerals of other discussed configurations to discuss similar or like components (e.g., the rear tool wall <NUM> in <FIG> and a rear tool wall <NUM> in <FIG>) with similar or identical structures and/or functionalities.

Referring to <FIG> and <FIG>, the accessory tool 110T includes a lens <NUM> that is selectively coupled to a tool body <NUM> and defines a suction nozzle volume 110V therebetween, a spray nozzle <NUM> having a spray tip <NUM>, and a cleanout assembly <NUM>. The accessory tool 110T may also include agitators <NUM> coupled to the tool body <NUM> with a brush plate <NUM>. The tool body <NUM> defines a tubular handle <NUM> that is connectable to the fluid delivery system <NUM> and the fluid recovery system <NUM> via the wand <NUM> (<FIG>) and the accessory hose <NUM> (<FIG>) as noted above. The tubular handle <NUM> includes a latch feature <NUM> to couple the accessory tool 110T to the wand <NUM>. The tool body <NUM> includes the rear tool wall <NUM> opposing the lens <NUM> and at least partially defines the transverse fluid channel <NUM>. The transverse fluid channel <NUM> extends parallel to and adjacent to a suction nozzle <NUM> of the tool 110T forming a nozzle opening to the suction volume 110V.

The cleanout assembly <NUM> includes a sprayer tube <NUM> having the spray tip <NUM>, a rinse tip <NUM>, and a diverter sleeve <NUM>. The diverter sleeve <NUM> is configured to selectively cover and uncover the spray tip <NUM> of the sprayer tube <NUM>. The diverter sleeve <NUM> is coupled to a second actuator <NUM>, which is a sliding collar 150C that may be translated along the handle <NUM>. In the illustrated configuration, the sliding collar 150C is translated away from the lens <NUM> (in a direction indicated by arrow CC) to create a bypass and block the spray tip <NUM> with the diverter sleeve <NUM> and is translated towards the lens <NUM> (opposite the direction of arrow CC) to unblock or open the spray tip <NUM>. As illustrated, the sliding collar 150C is connected to the diverter sleeve <NUM> using a fastener <NUM>, such as a screw or clip, and is not biased in either direction.

<FIG> and <FIG> are cross-sectional views of the accessory tool 110T taken along cut line <NUM>-<NUM> of <FIG>. As shown, the tool body <NUM> and the handle <NUM> contain or define a fluid delivery pathway <NUM> and the airflow pathway <NUM>. The fluid delivery pathway <NUM> is configured to connect to the fluid delivery system <NUM> via the wand <NUM> and accessory hose <NUM>, while the airflow pathway <NUM> is configured to connect to the fluid recovery system <NUM>, likewise via the wand <NUM> and the accessory hose <NUM>. Thus, the fluid delivery pathway <NUM> carries the cleaning fluid <NUM> (arrow FF) and the airflow pathway <NUM> carries the airflow (arrow AA). The spray tip <NUM> is in fluid communication with the fluid delivery pathway <NUM>, with the cleaning fluid <NUM> ultimately passing through and out of the spray tip <NUM> or bypassing the spray tip <NUM> depending on the operating mode.

SPRAY MODE: In the "spray" mode performed by the configuration of the accessory tool 110T of <FIG>, a user depresses or otherwise activates the first actuator <NUM>, and the cleaning fluid <NUM> travels through a fluid delivery pathway <NUM> into a first end 165A of the sprayer tube <NUM>, an outer diameter of which may be fluidly sealed via multiple O-rings <NUM> or seals. The cleaning fluid <NUM> exits a spray tip <NUM> and is dispensed onto the surface <NUM>. The diverter sleeve <NUM> is in a spray position 183a, or an open position 183a, that allows the cleaning fluid <NUM> to exit a spray tip <NUM> and the accessory tool 110T. Agitation of the dispensed cleaning fluid <NUM> via the agitators <NUM> may be performed to lift and extract debris from the surface <NUM>, with the spent cleaning fluid <NUM> and entrained debris being suctioned away through the suction nozzle <NUM>, through the suction nozzle volume 10V, and into the airflow pathway <NUM>. The recovered cleaning fluid <NUM> and debris can ultimately be directed to a recovery tank.

CLEAN OUT MODE: Referring to <FIG> and <FIG>, the diverter sleeve <NUM> may be translated over the spray tip <NUM> with the sliding collar 150C by a user to change the accessory tool 110T from the "spray" mode to the "clean out" mode. The spray tip <NUM> may be flanked by O-rings <NUM> to seal and limit or prevent the cleaning fluid <NUM> from being dispensed by the accessory tool 110T when in the "clean out" mode. The sliding collar 150c moves the diverter sleeve <NUM> from the spray position 183a to a clean out position 183b, or a closed position 183b, by covering or blocking the spray tip <NUM> from directing the cleaning fluid <NUM> to the surface <NUM>. As a result, the cleaning fluid <NUM> is temporarily diverted from or around the spray tip <NUM> and travels down the length of the sprayer tube <NUM>, remaining in the accessory tool 110T.

The cleaning fluid <NUM> is diverted along an alternative route from the spray tip <NUM>, through a diverter orifice <NUM> or a sprayer passage inlet <NUM> defined by the sprayer tube <NUM>, and to a sprayer tube passage <NUM>. The alternative route generally retains the cleaning fluid <NUM> within the accessory tool 110T. Following the alternate route, the cleaning fluid <NUM> passes through a sprayer tube passage <NUM> and exits the second end 165B. From this exit point, the dispensed cleaning fluid <NUM> enters the rinse tip <NUM> and is directed through a downward fluid passage <NUM>. The cleaning fluid <NUM> then enters transverse fluid channels <NUM> (see <FIG> and <FIG>), is drawn into the suction nozzle volume 110V, and is extracted through an airflow pathway <NUM> via the suction forces applied by the suction source <NUM>. The inner surface of the lens <NUM> is flushed, along with the insides of the wand <NUM> and the length of the accessory hose <NUM> located downstream of the tool body <NUM> due to the dispensed cleaning fluid <NUM> circulating within the suction nozzle volume 110V, the wand <NUM>, and the accessory hose <NUM>, in particular.

Referring to <FIG>, the transverse fluid channel <NUM> is arranged parallel to and adjacent to the suction nozzle <NUM> to the suction nozzle volume 110V. During the "clean out" mode described above and depicted in <FIG>, the cleaning fluid <NUM> exits the sprayer tube <NUM> and passes into the rinse tip <NUM> at a fluid junction <NUM> between the end 165B of the sprayer tube <NUM> and the rinse tip <NUM>. The fluid junction <NUM> is sealed by O-rings <NUM> around the outer diameter of the sprayer tube <NUM>, which is received within the rinse tip <NUM>. The downward fluid passage <NUM> defined within the rinse tip <NUM> conducts the cleaning fluid <NUM> as a downward fluid stream (arrow DD) into the transverse fluid channel <NUM>.

As the cleaning fluid <NUM> enters the transverse fluid channel <NUM>, the fluid stream (DD) is divided and guided into and along the transverse fluid channel <NUM> in approximately equal volumes. Low-pressure zones <NUM> are formed over the transverse fluid channel <NUM> as the airflow (arrow AA) through the suction nozzle volume 110V passes over the transverse fluid channel <NUM>. The rear wall <NUM> may define air guides <NUM> that are recessed or protruded relative to the rear wall <NUM> to guide the airflow and assist in forming the low-pressure zones <NUM>. As a result, the divided fluid stream (arrow LL) of the cleaning fluid <NUM> contained in the transverse fluid channel <NUM> is pulled outward toward edges 110E of the tool body <NUM> and is eventually drawn upward and out through the airflow pathway <NUM> of <FIG> and <FIG>.

Referring to <FIG>, a side view of the transverse fluid channel <NUM> suitable for creating the low-pressure zones <NUM> is illustrated. The transverse fluid channel <NUM> includes a radiused channel portion <NUM> and a substantially vertical wall <NUM> that is contiguous with the radiused channel portion <NUM>. The vertical wall <NUM> meets with the rear tool wall <NUM> of the tool body <NUM>, as is likewise shown in <FIG>. Therefore, the airflow (arrow AA) passes from the suction nozzle <NUM> of <FIG> and <FIG>, upward over a horizontal, lower surface <NUM> disposed forward of the radiused channel portion <NUM>, and along the rear tool wall <NUM> of the tool body <NUM>, thereby drawing out and distributing cleaning fluid <NUM> from within the transverse fluid channel <NUM>.

Referring to <FIG>, <FIG>, the rinse tip <NUM> includes an inlet tube <NUM>, which may be a circular extension or flange defining therein the fluid junction <NUM>, and a conduit body <NUM> that is connected to or formed integrally with the inlet tube <NUM>. Cleaning fluid <NUM> (<FIG>) entering the fluid junction <NUM> ultimately flows into the fluid passage <NUM> and downward to an elongated fluid outlet <NUM>, the latter of which is shown in <FIG>. Exiting cleaning fluid <NUM> thereafter spills from the fluid passage <NUM> into the transverse fluid channel <NUM>, where the cleaning fluid <NUM> generally pools to be guided by the airflow (arrow AA). The inlet tube <NUM> may define a slot <NUM> configured to couple to a clip <NUM> to retain the rinse tip <NUM> within the tool body <NUM> (see <FIG>). The rinse tip <NUM> operates in a similar manner to that described herein and may direct the cleaning fluid <NUM> to the transverse fluid channel <NUM>.

It will be understood by a person of ordinary skill in the art that similar or like components may be interchanged between configurations. It will be further understood by a person of ordinary skill in the art that similar or like components discussed may be modified, constructed, or changed in the same or similar manner to that previously discussed herein.

With reference to <FIG>, the accessory tools 10T, 110T described in detail herein therefore make the process of cleaning the accessory tool 10T, 110T, the wand <NUM>, and the accessory hose <NUM> more efficient and user-friendly. In lieu of requiring a separate cleanout accessory, a user actuates the second actuator <NUM>, <NUM>, 500A, <NUM> to bypass the spray tip <NUM>, <NUM> with the user thereafter actuating the first actuator <NUM> to dispense the cleaning fluid <NUM>. Fluid entering the transverse fluid channel <NUM>, <NUM> of <FIG>, <FIG>, <FIG>, and <FIG> is distributed horizontally to the suction nozzle <NUM>, <NUM> and thereafter drawn into the air path (arrows AA) to provide the desired cleaning function. These and other attendant benefits will be readily appreciated by those skilled in the art in view of the foregoing.

It will be understood by one having ordinary skill in the art that construction of the described invention and other components is not limited to any specific material. Other exemplary embodiments of the invention disclosed herein may be formed from a wide variety of materials, unless described otherwise herein.

It is also important to note that the construction and arrangement of the elements of the invention, as shown in the exemplary embodiments, is illustrative only. Although only a few embodiments of the present invention have been described in detail, those skilled in the art will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes, and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without departing from the invention as defined by the claims. For example, elements shown as integrally formed may be constructed of multiple parts, or elements shown as multiple parts may be integrally formed, the operation of the interfaces may be reversed or otherwise varied, the length or width of the structures and/or members or connector or other elements of the system may be varied, the nature or number of adjustment positions provided between the elements may be varied. It should be noted that the elements and/or assemblies of the system may be constructed from any of a wide variety of materials that provide sufficient strength or durability, in any of a wide variety of colors, textures, and combinations. Accordingly, all such modifications are intended to be included within the scope of the present innovations.

It will be understood that any described processes or steps within described processes may be combined with other disclosed processes or steps to form structures within the scope of the present invention. The exemplary structures and processes disclosed herein are for illustrative purposes and are not to be construed as limiting.

The following Clauses provide example configurations of an accessory tool and an extraction cleaner as disclosed herein.

Clause <NUM>: An accessory tool for an extraction cleaner having an accessory hose, a fluid delivery system, and a fluid recovery system, the accessory tool comprising: a lens; a tool body connectable to said fluid delivery system and said fluid recovery system via said accessory hose, wherein the lens is coupled with the tool body to form a suction nozzle volume between the lens and a rear tool wall, and wherein the rear tool wall at least partially defines a fluid channel opposite the lens and in fluid communication with the suction nozzle volume; a spray tip configured to dispense a cleaning fluid from said fluid delivery system onto a surface during a spray mode of said extraction cleaner; and a cleanout assembly coupled to the tool body and configured to selectively divert the cleaning fluid from the spray tip and into the fluid channel during a clean out mode of said extraction cleaner to thereby clean the lens and the accessory hose.

Clause <NUM>: The accessory hose of clause <NUM>, wherein the rear tool wall is positioned opposite the lens, and wherein the fluid channel is arranged parallel to and adjacent to a nozzle opening to the suction nozzle volume.

Clause <NUM>: The accessory tool of clause <NUM> or <NUM>, further comprising: a tool actuator operably coupled to the tool body, wherein a spray actuator of said wand is configured to dispense the cleaning fluid from said fluid delivery system to the spray tip during the spray mode, and wherein the second actuator is configured to selectively divert the cleaning fluid from the spray tip during the clean out mode.

Clause <NUM>: The accessory tool of clause <NUM>, wherein the cleanout assembly includes a diverter sleeve connected to the tool actuator and configured to translate over the spray tip in response to an actuating force imparted by the second actuator.

Clause <NUM>: The accessory tool of clause <NUM> or <NUM>, wherein the tool actuator includes a lever feature operably coupled to the tool body.

Clause <NUM>: The accessory tool of any of clauses <NUM>-<NUM>, wherein the cleanout assembly includes a rinse tip configured to conduct the cleaning fluid toward and into the fluid channel during the clean out mode.

Clause <NUM>: The accessory tool of clause <NUM>, wherein the rinse tip defines a fluid passage that intersects the fluid channel and directs the cleaning fluid into the fluid channel.

Clause <NUM>: The accessory tool of any of clauses <NUM>-<NUM>, wherein the fluid channel is configured to create low-pressure zones adjacent to the suction nozzle volume to thereby distribute the cleaning fluid across a width of the tool body when a suction force is applied to the suction nozzle volume.

Clause <NUM>: The accessory tool of clause <NUM>, wherein the fluid channel includes one or more depressions in an airflow pathway of the suction nozzle volume.

Clause <NUM>: The accessory tool of any of clauses <NUM>-<NUM>, wherein the fluid channel includes a radiused channel portion and a sloped wall that is contiguous with the radiused channel portion.

Clause <NUM>: An accessory tool for an extraction cleaner having an accessory hose with a wand including a spring actuator, a fluid delivery system, and a fluid recovery system, the accessory tool comprising: a lens; a tool body connectable to said fluid delivery system and said fluid recovery system via the accessory hose, wherein the lens couples to the tool body forming a suction nozzle volume therebetween; a spray tip configured to dispense a cleaning fluid from said fluid delivery system; a cleanout assembly configured to selectively divert the cleaning fluid from the spray tip and into the suction nozzle volume to thereby clean the lens and the accessory hose, wherein the cleanout assembly includes: a diverter sleeve slidable between a spray position and a clean out position, wherein the cleaning fluid is dispensed from the spray tip to a surface when the diverter sleeve is in the spray position, and wherein the cleaning fluid is diverted from the spray tip into the suction nozzle volume when the diverter sleeve is in the clean out position; and a rinse tip, and wherein the rinse tip is configured to conduct the cleaning fluid into the suction nozzle volume when the diverter sleeve is in the clean out position; and a tool actuator operably coupled to the tool body, wherein the tool actuator is operably coupled to the diverter sleeve and configured to move the diverter sleeve between the spray position and the clean out position.

Clause <NUM>: The accessory tool of clause <NUM>, wherein the tool actuator includes a slidable lever operably coupled to the tool body.

Clause <NUM>: The accessory tool of clause <NUM> or <NUM>, wherein the tool body includes a rear tool wall that at least partially defines a fluid channel, and wherein the rinse tip defines a fluid passage that intersects the fluid channel.

Clause <NUM>: The accessory tool of clause <NUM>, wherein the fluid channel is configured to create low-pressure zones adjacent to the suction nozzle volume to distribute the cleaning fluid across a width of the tool body when a suction force is applied to the suction nozzle volume.

Clause <NUM>: The accessory tool of clause <NUM>, wherein the fluid channel includes depressions in an airflow pathway of the suction nozzle volume.

Clause <NUM>: An extraction cleaner comprising: an accessory hose; a fluid delivery system; a fluid recovery system; and an accessory tool comprising: a lens; a tool body connectable to the fluid delivery system and the fluid recovery system via the accessory hose, wherein the lens couples to the tool body to form a suction nozzle volume therebetween, the tool body comprises a rear wall that defines a transverse fluid channel, and wherein the transverse fluid channel is arranged parallel to and adjacent to a nozzle opening of the suction nozzle volume; a spray tip configured to dispense a cleaning fluid from the fluid delivery system onto a surface during a spray mode of said extraction cleaner; and a cleanout assembly configured to selectively divert the cleaning fluid from the spray tip and into the suction nozzle volume via the transverse fluid channel during a clean out mode of the extraction cleaner to thereby clean the lens and the accessory hose.

Clause <NUM>: The extraction cleaner of clause <NUM>, further comprising: a wand coupled to the accessory hose and including a first actuator; and a second actuator connected to the tool body, wherein the first actuator is configured to conduct the cleaning fluid from the fluid delivery system to the spray tip during the spray mode, wherein the second actuator is configured to selectively divert the cleaning fluid from the spray tip during the clean out mode, and wherein the cleanout assembly includes a diverter sleeve connected to the second actuator that is configured to translate over the spray tip in response to an actuating force from the second actuator.

Clause <NUM>: The accessory tool of clause <NUM> or <NUM>, wherein the cleanout assembly includes a rinse tip configured to conduct the cleaning fluid toward and into the transverse fluid channel during the clean out mode, and wherein the rinse tip defines a fluid passage that intersects the transverse fluid channel.

Clause <NUM>: The extraction cleaner of any of clauses <NUM>-<NUM>, wherein the transverse fluid channel is configured to create low-pressure zones adjacent to the suction nozzle volume to distribute the cleaning fluid across a width of the tool body when a suction force is applied to the suction nozzle volume, and wherein the transverse fluid channel includes a radiused channel portion and a sloped wall that is contiguous with the radiused channel portion.

Claim 1:
An accessory tool (10T, 110T) for an extraction cleaner (<NUM>, <NUM>, <NUM>) having an accessory hose (<NUM>) with a wand (<NUM>), a fluid delivery system (<NUM>), and a fluid recovery system (<NUM>), the accessory tool (10T, 110T) comprising:
a lens (<NUM>, <NUM>);
a tool body (<NUM>, <NUM>) connectable to said fluid delivery system (<NUM>) and said fluid recovery system (<NUM>) via said accessory hose (<NUM>), wherein the lens (<NUM>, <NUM>) is coupled with the tool body (<NUM>, <NUM>) to form a suction nozzle (<NUM>, <NUM>) and a suction nozzle volume (10V, 110V) between the lens (<NUM>, <NUM>) and a rear tool wall (<NUM>, <NUM>), and wherein the rear tool wall (<NUM>, <NUM>) serves as a rear wall of the tool body (<NUM>, <NUM>) when viewed by a user through the lens (<NUM>, <NUM>) and wherein the rear tool wall (<NUM>, <NUM>) at least partially defines a transverse fluid channel (<NUM>, <NUM>) opposite the lens (<NUM>, <NUM>) and in fluid communication with the suction nozzle volume (10V, 110V), the transverse fluid channel (<NUM>, <NUM>) is arranged adjacent to a nozzle opening to the suction nozzle volume (10V, 110V) and wherein the transverse fluid
channel (<NUM>, <NUM>) includes a radiused channel portion (<NUM>, <NUM>) and a wall (<NUM>, <NUM>) that is contiguous with the radiused channel portion (<NUM>, <NUM>); the accessory tool (10T, 110T) further comprises:
a spray tip (<NUM>, <NUM>) configured to dispense a cleaning fluid (<NUM>) from said fluid delivery system (<NUM>) onto a surface (<NUM>) during a spray mode of said extraction cleaner (<NUM>, <NUM>, <NUM>); and
a cleanout assembly (<NUM>, <NUM>) coupled to the tool body (<NUM>, <NUM>) and configured to selectively divert the cleaning fluid (<NUM>) from the spray tip (<NUM>, <NUM>) and into the fluid channel (<NUM>, <NUM>) during a clean out mode of said extraction cleaner (<NUM>, <NUM>, <NUM>) to thereby clean the lens (<NUM>, <NUM>) and the accessory hose (<NUM>).