Patent Description:
Glass is a widely employed material in buildings and vehicles throughout the world. Glass panes are employed in buildings to provide light transmission into rooms while concurrently providing a shield from wind, weather, and the elements. Glass windshields provide drivers a clear view of the road while blocking wind and moisture from the driver. Glass tabletops and surfaces provide a clean and clear surface whereby underlying designs are protected.

A problem with most glass in buildings, vehicles, and on surfaces is the proclivity for glass to scratch or ding when impacted with a sharp instrument or when impacted by something at high speed. For example, on a high rise building which employs many levels there may be custom sized glass panes employed on each level and indeed in each window frame. Should one become scratched during shipment or installation, it is not easily replaced due to the custom configuration for the venue and window frame where it is to be installed.

Similar issues occur where custom glass surfaces cover underlying furniture or counters or other underlying surfaces which may have designs being protected by the glass. Further, vehicle windshields can become scratched from impacts with debris or the like at vehicle speeds.

The device herein provides a system for polishing defects in glass surfaces onsite to polish defects and scratches from glass surfaces and/or coatings thereon, without the need to remove the glass from its mount. The glass polishing component herein is configured in two half portions which are configured for engagement to each other in a compressive engagement against a complimentary contoured exterior surface of a hand held motor, such as those employed for drills or the like. It, thereby, provides the user with a triggered fluid supply delivered directly to the polishing component or pad being driven by the hand-held motor such as, for example, and in no way limiting, the MAKITA GV5010.

The forgoing examples of glass scratches and repairing such are intended to be illustrative and not exclusive, and they do not imply any limitations on the invention described and claimed herein.

From <CIT> there is known a glass polishing apparatus according to the preamble of claim <NUM>.

The device herein provides an easily engaged casing formed in a plurality of engageable components to compressibly engage the exterior of a hand held drive such as an electric or pneumatic motor or electric drill type motor. While a larger plurality of components may be formed for assembly, in a current preferred mode of the device, a first half and a second half are compressibly engageable upon an underlying hand held electric or pneumatic motor device such as a drill motor.

When the plurality of casing components is two, each of the interior surfaces of both the first and the second half of the casing, are configured to be substantially complementary in shape, contour, and dimension, to the exterior surface of the housing of the hand held electric or pneumatic motor to which the casing is operatively engaged. This compressive engagement is achieved by fasteners connecting the first half of the casing with the second half of the casing once both are mated to their respective positions on the housing of a hand held electric motor.

So engaged, the casing formed by a plurality of casing components such as a first half and a second half, is configured to communicate a fluid such as water or other fluids employed in the polishing of glass, from a pressurized fluid supply to a polishing tool or pad operatively connected to the electric motor so that it will spin. A trigger on a rear facing surface of an ergonomic handle of the engaged casing is located adjacent a raised portion of the formed casing. This is especially preferred as the raised portion provides an ergonomic handle and gripping point for one hand of the user, on an opposite side of the handle of the engaged hand held motor. This positioning provides better stability when held and used. Further, as shown herein, the edge and/or axis of the formed handle angles downward from the rear of the drill motor toward the rotating end. This allows the user to grip the formed handle and maintain their elbow at or below the level of the rotating end and tool during use, for a more comfortable use as well as a more stable use allowed by the angle of the formed handle.

Further, by positioning of the fluid trigger on a rearward facing surface of the raised portion providing the handle for gripping by one hand of the user, they may easily trigger fluid flow and cease fluid flow during a repair, without removing either hand concurrently holding the device thereby enhancing and maintaining stability during use.

Stable handling of the device herein is particularly preferred. This is because a tilting of the casing and underlying electric or pneumatic motor off of a substantially perpendicular axis, relative to the repair being attempted on glass, can cause damage to the glass rather than repairing it. As such, by positioning a secondary handle or gripping portion of the assembled casing, opposite to and in the same plane as the handle of the engaged electric motor, even pressure can be more easily applied by the user on both of the two sides of the axis of the drive powering the polishing pad engaged to rotate using the power of the electric motor. Further, the angle of the formed handle allows the user to securely grip around the outside circumference with their hand at an angle allowing them to lower the elbow of that hand during use.

As used in the claims to describe the various inventive aspects and embodiments, "comprising" means including, but not limited to, whatever follows the word "comprising". Thus, use of the term "comprising" indicates that the listed elements are required or mandatory, but that other elements are optional and may or may not be present. By "consisting of" is meant including, and limited to, whatever follows the phrase "consisting of". Thus, the phrase "consisting of" indicates that the listed elements are required or mandatory, and that no other elements may be present. By "consisting essentially of" is meant including any elements listed after the phrase, and limited to other elements that do not interfere with or contribute to the activity or action specified in the disclosure for the listed elements. Thus, the phrase "consisting essentially of" indicates that the listed elements are required or mandatory, but that other elements are optional and may or may not be present depending upon whether or not they affect the activity or action of the listed elements. The term "substantially" when employed herein, means plus or minus twenty percent unless otherwise designated in range.

It is the object of the invention to provide a glass polishing apparatus as defined in claim <NUM>.

It is an object of the present invention to provide a glass polishing device formed in a plurality of housing components adapted for a compressive engagement upon the exterior housing of a hand held electric or pneumatic motor such as a hand held drill or sander or the like.

It is an additional object of this invention to provide such a glass polishing device which, once engaged to a housing of a hand held electric motor, positions a projecting grip for a second hand of the user in the same plane as the handle of the underlying electric motor, and at an angle allowing a lowered elbow on the gripping hand, which also positions a fluid trigger adjacent that projecting grip thereby allowing the user to maintain a firm grip on both sides of the device during use and during concurrent actuation that triggers a fluid supply.

These and other objects, features, and advantages of the present glass polishing device, as well as the advantages thereof over existing prior art, which will become apparent from the description to follow, are accomplished by the improvements described in this specification and hereinafter described in the following detailed description which fully discloses the invention, but should not be considered as placing limitations thereon.

The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate some, but not the only or exclusive examples of embodiments and/or features of the disclosed hand held electric motor-engageable glass polishing device. It is intended that the embodiments and figures disclosed herein are to be considered illustrative of the invention herein, rather than limiting in any fashion. In the drawings:.

In this description, the directional prepositions of up, upwardly, down, downwardly, front, back, top, upper, bottom, lower, left, right and other such terms refer to the device as it is oriented and appears in the drawings and are used for convenience only and such are not intended to be limiting or to imply that the device has to be used or positioned in any particular orientation.

Now referring to drawings in <FIG>, wherein similar components are identified by like reference numerals, there is seen in <FIG>, an exploded view of the device <NUM> showing a casing <NUM> formed from a plurality of casing components and having an interior surface <NUM> configured for a contacting engagement against an exterior housing <NUM> of a drill motor <NUM> or the like, in operative engagement to the drill motor <NUM>. By operative engagement is meant that the interior surface <NUM> of the casing <NUM> is in contact with the exterior housing <NUM> of the drill motor <NUM> with a handle <NUM> of the drill motor <NUM> projecting from a first side of the casing <NUM> in such an engagement. By the term drill motor is meant any electric or pneumatic powered hand held motor which is triggerable to powered rotation, and has a handle for holding the drill motor during use.

While more than two components may be used to form the casing <NUM> of the device <NUM> herein, currently the primary components forming the casing <NUM> are assembled from a first half casing <NUM> and a second half casing <NUM>. The interior surfaces <NUM> of each of the first half casing <NUM> and second half casing <NUM> and the formed casing <NUM> from the two are respectively configured to be substantially complimentary in both shape and dimension to the exterior housing <NUM> of a hand held electric or pneumatic or other powered drill motor <NUM> employed herein, to which they are adapted to engage.

This contacting engagement of complimentary shaped and contoured surfaces of the interior <NUM> of the formed casing <NUM> and the exterior housing <NUM>, is preferred for all modes of the device <NUM> to achieve the operative engagement with a drill motor <NUM>. This is because such a contacting engagement of the complimentary curved and contoured interior surface <NUM> against the exterior housing <NUM> holds the casing <NUM> securely fixed in place and will not allow the drill motor <NUM> to move during use relative to the operatively engaged surrounding casing <NUM>.

As shown in a preferred mode herein, the first half casing <NUM> forms a contacting engagement with the drill motor <NUM> in combination with the second half casing <NUM>, and the two are held engaged to each other by fasteners <NUM> adapted to the task. Other fasteners <NUM> may be employed to additionally secure the formed casing <NUM> to the drill motor <NUM> if such is desired.

The casing <NUM> has an interior surface <NUM> which is complementary in shape and contour to the exterior housing <NUM> surface of the chosen hand held electric or pneumatic drill motor <NUM> to which the formed casing <NUM> of the device <NUM> herein is adapted to operatively engage. Such a complimentary configuration and contact of the curves and contours of the interior surface <NUM> against the exterior housing <NUM>, provides a solid non flexing combination of casing <NUM><NUM> and hand held powered drill motor <NUM> during use, with the drill motor handle <NUM> projecting from an opening <NUM> formed in the first side of the formed casing <NUM>.

In all modes of the device <NUM>, no matter the number in the plurality of casing components, a projecting portion <NUM> on a second side of the casing <NUM>, defines a secondary handle <NUM> for gripping by a user and is preferably formed as part of one casing component such as the second half casing <NUM> but may include portions of both. This secondary handle <NUM> projecting from the second side of the casing <NUM>, which is opposite the first side from which the drill motor handle <NUM> projects, can be seen in this and other figures herein such as <FIG>. This secondary handle <NUM> is ergonomically curved about its curved surface <NUM> for easy gripping by the palm and fingers of either hand a user.

Also shown in <FIG> and for example in <FIG>, the secondary handle <NUM>, defined by the curved exterior <NUM> of the projecting portion <NUM>, preferably extends substantially in the same plane as the handle <NUM> of the hand held pneumatic or electric drill motor <NUM>, which projects from an opening <NUM> on the first side of the engaged casing <NUM> of the device <NUM> herein when engaged to the drill motor <NUM>. Thus, the handle <NUM> will extend from a first side of the operatively engaged casing <NUM> along the handle axis <NUM>, and the secondary handle <NUM> will extend from a second side of the casing <NUM> opposite the handle <NUM> extending from the first side, substantially in the same plane as the drill motor handle <NUM>.

By substantially in the same plane is meant that as shown in <FIG>, the center line of the secondary handle <NUM> is aligned with the drill motor handle axis <NUM> or within <NUM> degrees thereof. Positioning the secondary handle <NUM> substantially in the same plane as the handle <NUM> with the center area of the top edge <NUM> of the secondary handle <NUM> substantially aligned with the handle axis <NUM> is preferred. This is because it allows the device <NUM> during use, to be held equally balanced with the user holding the secondary handle <NUM> with either a left or right hand. A tilt of the secondary handle <NUM> off center with the drill handle axis <NUM>, would move the center area of the top edge <NUM> out of alignment and tilting to one side, which would change the way it has to be held depending on which side the user is on.

This configuration of aligned handle <NUM> and ergonomic secondary handle <NUM> defined by the projecting portion <NUM>, as noted, has been found in experimentation to allow the user to hold the device <NUM>, formed by the operatively engaged casing <NUM> and drill motor <NUM>, in a fashion helping the user align the polishing pad <NUM> or other tool engaged to the rotating connector <NUM>, which is coupled to and powered by the rotating drill shaft <NUM> of the drill motor <NUM>, to the axis <NUM> of the drill motor thereby positioning it aligned and substantially perpendicular to the defect on the glass being repaired. By substantially perpendicular is meant plus or minus twenty degrees.

While a secondary handle running normal to the axis <NUM> of the powered drill motor <NUM> and to the handle <NUM>, was originally used, experimentation found that providing an ergonomic secondary handle <NUM> defined by the projecting portion <NUM>, substantially aligned with the axis of the handle <NUM> of the hand held drill motor <NUM>, yielded significantly better repair results by providing a more steady grip enabling a better positioning of the buffing or polishing pad <NUM> to a position substantially perpendicular to the glass being repaired, which is important to prevent causing damage during the repair.

While a tool in the form of a polishing pad <NUM> is shown, other tools may be employed with the device <NUM> herein. All such tools, as with the polishing pad <NUM>, will have a connector thereon configured to removably engage on or with the rotating connector <NUM> herein which is coupled to the powered shaft <NUM> of the drill motor <NUM> when the casing <NUM> is operatively engaged thereto. Such a connector would be adapted to removably engage a mating connector upon the rotating connector <NUM>, such as threads as depicted in <FIG> on the connector <NUM>.

Additionally, as shown in <FIG>, <FIG>, and highlighted in <FIG>, forming the projecting portion and secondary handle <NUM> at an angle "D" at least along an angle line <NUM> followed by a top edge <NUM> of the exterior curved surface <NUM> of the secondary handle <NUM>, such that it slants downward at an angle "D", (<FIG>). This slant runs from a high point elevated above the second end of the casing <NUM> at a first end of the handle at the rear wall <NUM>, to a lowest point elevated above the second side of the casing <NUM> at a second end of the secondary handle <NUM> closer to the rotating connector <NUM> of the drill motor <NUM>.

This angle or incline, depending on the viewpoint, of the secondary handle <NUM> is preferred in all modes of the device <NUM>. This angle "D" of the formed secondary handle <NUM>, such as shown following line <NUM> adjacent the top edge <NUM>, was unexpectedly found to allow the user to grip the secondary handle <NUM> with their wrist turned or rotated in a fashion which locates the elbow of the user, level with or below, the level of the rotating connector <NUM> and engaged tool or pad <NUM>, on glass being surfaced. Such a positioning of the elbow enabled by the handle angle "D" along slanted line <NUM>, followed by the exterior surface <NUM> at a central area or a top edge <NUM> of the secondary handle <NUM>, was found in experimentation to provide the user with significantly more control during polishing as well as comfort.

It was determined the enhanced stability and comfort of this angled secondary handle <NUM> was partly provided by enabling a user to maintain the drill motor axis <NUM> (<FIG>), which runs through the drive shaft and the rotating connector <NUM>, aligned with the glass surface area being polished.

While the device <NUM>, can be formed with the top edge <NUM> of the secondary handle <NUM> running substantially parallel to the axis <NUM> of the drill motor <NUM>, and the device <NUM> will still perform glass repairs better than the prior art, it was found with such a parallel configuration, that the user had to continuously maintain the elbow on their arm gripping the secondary handle <NUM>, at a much higher elevation. This caused user discomfort over time and significantly reduced stability during use, especially over the time to perform a number of repairs, thereby reducing the ability of the user to maintain a substantially perpendicular positioning of the axis <NUM> of the drill motor <NUM> during use.

As such, the curved surface <NUM> of the secondary handle <NUM> following the angle "D" along the downward line <NUM> followed by a central area of the top edge <NUM> of the secondary handle <NUM>, as shown in for example, <FIG> and enlarged in <FIG>, is particularly preferred. This angle "D" is best defined as relative to the intersection of the downward line <NUM> with the drill motor axis <NUM> running along the drive shaft <NUM> thereof and through the axis of the rotating connector <NUM>, as best shown in the enlarged angle depiction in <FIG>. Although called a downward angle for convenience, it could also be defined as an inclining angle from the intersection of line <NUM> with the motor axis <NUM>.

Additionally preferred is the positioning of the trigger <NUM> to initiate fluid flow to the fluid aperture <NUM>, on a rear wall <NUM> or rearward facing surface of the secondary handle <NUM> defined by the projecting portion <NUM>. Such a positioning was found to enable the user to better maintain this firm and steady grip of fingers wrapped around the secondary handle <NUM>, while concurrently actuating the trigger <NUM>, when needed, to activate the flow of the fluid supply through the fluid conduits <NUM> as needed. The downward angle noted above of the secondary handle <NUM>, better positioned the thumb of the user gripping it, to easily depress the trigger <NUM> while gripping the secondary handle <NUM>. Without the downward angle, the thumb of the user is located closer to and liable to encounter the exterior of the casing <NUM>, and a constant repositioning was required.

Shown in <FIG>, <FIG>, and <FIG> is the device <NUM> from differing angles in operative engagement upon the exterior surface <NUM> of the exterior of the housing <NUM> of the hand held electric or pneumatic motor <NUM>. Such is achieved by connecting the first half casing <NUM> to the second half casing <NUM> using screws or other fasteners <NUM> to achieve the contact of the interior surfaces <NUM> of the formed casing <NUM> with the exterior housing <NUM> of the drill motor <NUM>.

As can be seen in <FIG>, the rotating connector <NUM> is rotationally positioned within a sealed cavity <NUM> surrounding it. This sealed cavity <NUM> may be operatively located within an interior cavity of the formed casing <NUM>, and an engaged portion of the first half casing <NUM>, such as within an end cap <NUM> portion of the first half casing <NUM>.

A first end of this rotating connector <NUM> is connected to the powered shaft <NUM> of the hand held motor <NUM> during operative engagement of the casing <NUM>, on the drill motor <NUM>, and may have a fluid aperture <NUM> therein. This fluid aperture <NUM> communicates fluid received from the fluid conduit <NUM> onto the surface to be polished, preferably by fluid communication on or directly to a polishing pad <NUM> during use. Such a direct fluid communication may be through a channel <NUM> in the mounting shaft <NUM> for the polishing pad <NUM> holder or by spraying it onto the back of the polishing pad <NUM> when it is rotationally engaged to the rotating connector <NUM>. Such fluid is only communicated when the trigger <NUM> (<FIG>) is actuated by a user.

Thus, as shown in <FIG>, an actuable fluid pathway is provided with the device <NUM>. This fluid pathway is defined by and runs from a fluid supply connected to one end of a fluid conduit <NUM>, through the fluid conduit <NUM> and through a valve <NUM> which has the trigger <NUM> for valve actuation, and then to a sealed cavity <NUM> surrounding the rotating connector <NUM>. From this sealed cavity <NUM> the fluid flows through the opening <NUM> in the rotating connector <NUM> and through a passage to exit at the fluid aperture <NUM>. From the fluid aperture <NUM> the fluid in this fluid pathway can be directly or indirectly communicated to the tool or the polishing pad <NUM> being employed for a repair. The fluid flows through the fluid pathway to the repair tool or polishing pad <NUM>, only when the trigger <NUM> is actuated to open the valve <NUM>.

In <FIG> is shown a side view of the operatively engaged casing <NUM> of the engaged device <NUM> of <FIG> which also depicts the fluid conduit <NUM> configured to deliver fluid from a pressurized fluid supply when the trigger <NUM> positioned to be actuated by a thumb of a user from its position on a rear wall <NUM> of the secondary handle <NUM>. As noted, with the user gripping the secondary handle <NUM> curved surface <NUM> exterior with their fingers, they can easily and concurrently actuate the trigger <NUM> to open the valve <NUM>. This allows fluid from a pressurized supply to travel along the fluid pathway through the fluid conduit <NUM> to a sealed cavity <NUM> within the first half casing <NUM> which surrounds a the opening <NUM> whereafter the fluid exits the fluid aperture <NUM> of the rotating opening <NUM>. This allows fluid to travel through the fluid pathway and to exit the fluid aperture <NUM> supplying fluid to an engaged polishing component, tool, or pad <NUM> directly or to otherwise communicate to the glass surface area being repaired such as with a spray nozzle.

Shown in <FIG> is an exploded view showing interior-positioned components of the device <NUM> as in <FIG>, with the hand held electric or pneumatic drill motor <NUM> to which the casing <NUM> forming the assembled device <NUM> engages being removed, to better view the components of the fluid pathway formed by the components herein noted above. As can be seen, the components forming the fluid pathway employ the fluid conduit <NUM> to deliver fluid flow to the fluid aperture <NUM> in the distal end of the rotating connector <NUM> to then be communicated to the polishing pad <NUM> from the rotating connector <NUM> when the trigger <NUM> is actuated to allow such flow. The fluid flows under pressure into the fluid conduit <NUM> from a pressurized fluid supply such as tap water or another fluid or pressurized fluid supply. While the fluid from the second end of the fluid conduit adjacent the end cap <NUM> portion of the first half casing <NUM> could just exit to spray on and around the polishing pad <NUM>, currently it is more preferred to achieve a more even flow to have the fluid flow into the fluid cavity <NUM> surrounding the rotation of a fluid opening <NUM> in the rotating connector <NUM>, so it may flow through a channel in the rotating connector <NUM> to the fluid aperture <NUM> and to the polishing pad <NUM>.

In <FIG> is depicted a rear view or end view of the second half casing <NUM> operatively engaged upon the exterior surface <NUM> of the housing of the hand held electric or pneumatic motor <NUM> employed herewith. As can be seen, the projecting portion <NUM> forms the secondary handle <NUM> extending from a second side of the casing <NUM>, which is preferably substantially aligned with the plane of the handle <NUM> of the hand held electric motor <NUM>, which projects from the first side of the casing <NUM>.

Also shown is the exterior curved surface <NUM> of the secondary handle <NUM>, intersects the second side of the formed cashing <NUM> at a first end or bottom of the secondary handle <NUM>, where a pair of formed recesses <NUM> are formed. The recesses are formed in between the curved surface <NUM> of the secondary handle <NUM> and the second side of the housing <NUM> by the curving of the curved surface <NUM> toward the handle axis <NUM>.

The curved exterior surface <NUM> of the secondary handle <NUM> having the recesses <NUM> at the intersection at a first end of the secondary handle with the casing <NUM>, defines spaces to help with the ergonomic comfortable grip, with the palm of the hand adjacent one recess <NUM> and the distal ends of the fingers of the gripping hand of a user positionable within the opposing recess <NUM> on the opposite side of the secondary handle <NUM>.

Such a configuration allows a comfortable and secure grip of either a right and or left hand of a user with the secondary handle <NUM>. Further, it allows the user a much more secure grip on the secondary handle <NUM> to pull it in the direction of the top edge <NUM> during use, without the grip slipping since the fingers are wrapped around the widest diameter of the secondary handle <NUM> at a mid portion thereof.

While the exterior surface <NUM> of the secondary handle <NUM> could be formed without the two opposing recesses <NUM>, with a linear intersection with the casing <NUM>, the two recesses <NUM> on opposing sides was found to provide more room for the distal ends of the fingers of the user gripping the secondary handle <NUM>, and a more secure and comfortable grip. The inward curve <NUM> forming the two recesses <NUM> extends from a widest diameter <NUM> of the secondary handle <NUM> to the intersection of the exterior surface <NUM> thereof with the second side of the engaged casing <NUM>.

In <FIG> is shown an opposite side of the device <NUM> with the casing <NUM> configured operatively engaged with a drill motor <NUM> as noted herein. Additionally shown is a view of the preferred downward angle "D" of the top edge <NUM> of the secondary handle <NUM>. As shown, a central area of the top edge <NUM> declines from a first end of the secondary handle <NUM> at a highest point above the drill motor axis <NUM> adjacent to the rear wall <NUM> surrounding the trigger <NUM>, to a lowest point above the drill motor axis <NUM> at a second end of the secondary handle <NUM>, where it is closest to the rotating connector <NUM>.

Currently, an angle of the line <NUM> substantially followed by the handle and top edge <NUM> shown as "D" rises at an angle between <NUM>-<NUM> degrees from the lowest second end toward the highest first end, relative to the intersection of the angle line <NUM> of the secondary handle <NUM>, with the drill motor axis <NUM> as shown in the enlarged angle depiction, is preferred. This is noted because it was found to allow the user to maintain their elbow of the gripping hand in a comfortable position, substantially level with or below, the polishing point on the glass, and making it easier for exerting ongoing pressure to the device <NUM> during use.

Claim 1:
A glass polishing apparatus (<NUM>) comprising:
a casing (<NUM>, <NUM>, <NUM>) having an interior surface (<NUM>) and an exterior surface extending between a first side (<NUM>) and an opposite second side (<NUM>) of said casing;
said casing configured for an operative engagement to an exterior surface of a drill motor (<NUM>, <NUM>) with a handle (<NUM>) of said drill motor projecting from an opening positioned along said first side of said casing while in said operative engagement;
a rotating connector (<NUM>) positioned at a front end of said casing and coupled to a powered shaft (<NUM>) of said drill motor with said casing in said operative engagement;
said rotating connector (<NUM>) having a mating connector thereon for engaging a connector of a tool (<NUM>); a fluid pathway (<NUM>-<NUM>) coupled with said casing, a first end of said fluid pathway configured for a connection to a pressurized fluid stream;
characterised by said casing having a projecting portion (<NUM>) extending from said second side thereof, said projecting portion defining a secondary handle (<NUM>);
said secondary handle extending from a first end thereof at a rear wall (<NUM>) of said secondary handle toward said front end of said casing to a second end of said secondary handle;
said secondary handle having a curved exterior surface extending therearound for ergonomic gripping thereof by the fingers of a user;
a valve (<NUM>) positioned along said fluid pathway, said valve actuable to a first position blocking said fluid stream and to a second position allowing passage of said fluid stream therethrough; and
a valve trigger (<NUM>) coupled to said valve and extending through said rear wall, whereby said valve is actuable between said first position and said second position by a thumb of said user while said fingers of said user are concurrently gripping said exterior surface of said secondary handle.
a second end of said fluid pathway positioned at said front end of said casing for directing a stream of fluid therefrom into or adjacent to said tool, whereby a work surface contacted with said tool engaged with said rotating connector, is bathed in said fluid stream exiting said second end of said fluid pathway.