1. Field of the Invention
This invention relates to painting and, more particularly, to novel systems and methods for lighting a work area for a paintbrush during a cutting-in operation.
2. Background Art
For residential and commercial painting of interior surfaces, boundaries are the most difficult and time consuming. For example, a window may have a stained wood color, as to the seal and frame, while the surrounding wall is painted a particular color of the room. Although masking is possible, many commercial painters will simply “cut-in” along a boundary line, such as an internal corner, external corner, boundary line, or the like.
Cutting-in is the process of pressing the bristles of a paintbrush sideways flat against a surface being painted, while bending the handle toward a more perpendicular position with respect to the wall, thus spreading out the bristles to form a very thin edge at the far extreme. By drawing the brush with that line along the boundary, one may precisely position a difference in paint color while drawing the brush and depositing paint.
Cutting-in may be used around frames of doors, frames of windows, crown moldings, baseboards, internal corners, fixtures and attachments in walls, HVAC inlets and outlets, and the like. Thus, in a room, a significant number of regions may exist that require cutting-in by a painter.
Unfortunately, light is a perennial problem. Even in daylight, or room lighting system light, and even with specialized flood lighting set up by a painter, light is a problem. The specific problem is that a painter is close to a brush, the brush is against the wall, and everything culminates at the wall on the edge of the brush as painting continues. However, all light is typically on the opposite side of the painter from the brush.
Even with excellent illumination, the speed, change of position, and so forth render a shadow in the area of a brush repeatedly. Thus, even if the light is excellent at one moment, a few moments later shadows may intervene. Shadows inhibit an ability to see clearly changes in color and the exact location of paint deposits. Moreover, bright working lights result in reflections from a wall, which tend to close down the pupils of a painter. Accordingly, having adjusted to increased ambient light, the eyes can no longer properly distinguish the fine distinctions in the shadowed region near the tip of the brush.
What is needed is a localized illumination system and method for a paintbrush during close operations, where sight, color, and precision are required.
In view of the foregoing, in accordance with the invention as embodied and broadly described herein, a method and apparatus are disclosed in one embodiment of the present invention as including a securement mechanism, a standoff, and a light assembly that secured to a ferrule of a brush, or nearby, such as on a ferrule, in order to readily aim light and illuminate the edge of a paintbrush during cutting-in processes.
In certain embodiments, the securement mechanism may be selected from hook-and-loop fasteners, a ball and socket type of snap, any other type of snap, various shapes, sizes, and thicknesses of magnets, simple doubly adhesive spacer materials, or a spacing material containing adhesive on of at least two sides, or the like may act like a securement. Meanwhile, the size, or an additional spacer may be selected in order to stand a light assembly some distance off the ferrule of the brush and thereby provide a central axis of light that is offset from an outer surface of the brush in its undisturbed state.
For example, when the bristles of a brush are bent and drawn to a thin edge, the heel of the brush and handle necessarily aim at a location different from that edge. Accordingly, a standoff permits the light to be centered, or in least include or illuminate the edge where precision and good eyesight is best assisted by the additional illumination.
The foregoing features of the present invention will become more fully apparent from the following description and appended claims, taken in conjunction with the accompanying drawings. Understanding that these drawings depict only typical embodiments of the invention and are, therefore, not to be considered limiting of its scope, the invention will be described with additional specificity and detail through use of the accompanying drawings in which:
It will be readily understood that the components of the present invention, as generally described and illustrated in the drawings herein, could be arranged and designed in a wide variety of different configurations. Thus, the following more detailed description of the embodiments of the system and method of the present invention, as represented in the drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of various embodiments of the invention. The illustrated embodiments of the invention will be best understood by reference to the drawings, wherein like parts are designated by like numerals throughout.
Referring to
The light assembly 12 may be comprised of a holder 14 or standoff 14. In reality, the assembly 14 may act as a securement 14 and as s standoff mechanism 14. For example, it has been found useful the light assembly 12 away from the paintbrush 11 a distance selected to optimize illumination at the tip of the working end of the brush 11.
It has been found that having the central axis of the beam of light emanating from the light assembly 12 nearby and parallel to an outer surface of the brush 11 illuminates the brush, but not the space being cut-in. That is, in the cutting-in operation, the brush is bent intentionally to thin the bristles down to a fine edge, and spread them out. Thus, the sweep or area of coverage of the light assembly 12 is most effective when it extends a distance beside the brush, thus capturing the exact line formed by the edge of the brush 11 during a cutting-in operation.
In the illustrated embodiment, the light assembly 12 includes a housing 16 secured by the holder 14 and positioned away from the standoff 14. Thus, the housing 16 may be thought of as the structural mechanics, while the holder 14 and standoff 14 may be integrated into a single element, such as a magnet secured to a brush 11 forward (toward the paint-containing, toe or application end) of the brush 11. Thus, a handle 18 may have a narrower portion for holding, and may extend toward a wider part 17 of the handle 18, which then engages the ferrule 20.
The ferrule 20 is effectively a band 20, typically of metal, and most typically of steel, capturing and securing the bristles 22 near the heel 19 of the brush 11. The region of bristles 22 just outside the ferrule 20 is referred to as the heel 19, and typically holds no quantity of paint. Good painting technique fills the toe portion with paint, always leaving the heel dry.
As a practical matter, bristles 22 may be synthetic or natural. Actual bristle is an animal product. However, many modern brushes are formed with thin filaments of nylon, polyester, or other appropriate polymeric materials.
Between the bristles 22 is maintained a quantity of paint by virtue of capillary action. Surface tension maintains the paint within the bristles 22. Surface tension between the paint on the work piece and paint in the toe 21 or the extreme distal end 21 of the bristles 22 tends to draw more paint out of the bristles 22 toward the handle 18, such as within the ferrule 20.
Referring to
As a practical matter, the bristles 22 at the toe 21 are formed into a thin, sharp edge 23 by laying a flat aspect of the bristles 22 or the bundle of bristles 22 against the wall 54, and then pivoting the handle 18 around the heel 19 in order to spread the bristles 22 in two dimensions. That is, the bristles 22 closest to the wall are drawn back away from the edge 23 by bending the entire bundle, thus leaving fewer bristles 22 at the edge 23. Thus, by bending the bristles 22, the edge 23 is formed by the few bristles 22 that are closest to the line where paint will be cut-in. Meanwhile, the bristles 22 are accordingly distorted or deformed, being bent to one side.
In
The bulb 24 may be offset by the holder 14 or standoff 14 a distance away from the ferrule 20, typically by being attached by a magnet to the ferrule 20. Accordingly, the center line of the illumination by the bulb 24 will typically include the edge 23 of the bristles 22.
In the illustrated embodiment, various options are illustrated for the holder 14 and standoff spacer 14, the housing 16, and so forth. For example, the housing 16 may be made in a shape suitable for a type AA battery, a pair of type AAA batteries, a watch type or flat disc-like battery, or the like. Thus, the different shapes illustrated show how various types of batteries may be encased in housings 16 adapted thereto. The housing 16 will encompass both the batteries 28 and the bulb 24, it may be sized appropriate to the type of battery 28 being used.
Typically, the light 24 may be a light emitting diode (LED), or any suitable light source. As a practical matter, LED's require minimal energy for the available illumination and are a reasonable and efficient choice. However, various types of batteries 28 have wide ranging costs, sizes, current capacities, and so forth.
For example, larger batteries, single batteries, and the like may be preferable to the individual or stacked pancake (e.g., watch batteries) batteries illustrated. Likewise, the leads from the bulb 24 may pass through a switch 30 in order to turn the bulb 24 on and off. That is, power from the battery 28 is passed through an open circuit or to a closed circuit by the opening and closing of the switch 30.
In the illustrated embodiment, the securement mechanism 14, alternatively referred to as a holder 14 or a standoff 14 has several characteristics. Thus, it is a multi-functional device. In some embodiments, a magnet may be glued to the housing 16, and serve completely adequately. In other embodiments, permanent or temporary fastening mechanisms 14 may be used.
For example, in the illustrated embodiment, an adhesive layer 32 may be bonded to a spacer 34. Meanwhile, if these represent the entire mechanism 14 or securement mechanism 14, then only a limited number of attachments and detachments will be possible. By contrast, a magnet in a bar shape, disc shape, or rectangular block shape as illustrated may serve as the holder 14, by simply adhering to the ferrous material of which the ferrule 20 is made. Thus, a single, double-sided adhesive tape (e.g., plastic foam, double-stick tape) may secure such a magnet serving as a standoff spacer 14 to the housing 16, thus securing the light assembly 12.
In alternative embodiments, a snap socket 36 may have a face, which may be shaped flat, tapered, such as for piloting, or the like. The snap socket 36 may have an aperture 40 through the face 38. Typically, a ball 42 or other shape, such as a circular snap 42 or the like, may fit into the aperture 40 by an interference fit. The interference fit thus gives a grip holding the ball 42 or male snap portion 42 securely to the female socket portion 36.
The base 44 or trunnion 44 may be secured in any suitable way, such as gluing to a brush 11, fastening, threading, or any other suitable adhesive method. Typically, the surface area of the trunnion 44 may be considerably greater than that required for the snap ball 42 or the aperture 40. Thus, lower stress requirements will result. For example, a greater surface area provides that adhesion will persist even against greater forces due to the addition of distribution of stress at the adhesive boundary between the trunnion 44 and ferrule 20 or other portion of the handle 11.
In one embodiment, a hook material 46 may be selectively separable from a loop material 48 such as is available in the Velcro™ brand hook-and-loop fastener or similar product. Thus, the two materials 46, 48 combine to form a hook-and-loop fastener 50. By adhering one portion of the fastener 50 to the ferrule 20, the other portion thereof may be selectively separable at will. In the illustrated embodiment, an exploded view thereof illustrates how an adhesive layer 32 may bond a spacer 34 against the ferrule 20. Meanwhile, another adhesive layer 32 may be placed between the loop material 48 and the spacer 34. Alternatively, these may be glued together by an adhesive smeared on a surface of the spacer 34, the loop material 48, or both.
The hook material 46 that forms the other half of the fastener 50 may also be adhered by an adhesive layer 32 to the housing 16 of the light assembly 12. Meanwhile, the hook-and-loop fastener 50 may be selectively separable in order to remove, replace, service, aim, or otherwise manipulate the light assembly 12, its position, or components.
Referring to
In this embodiment, the offset 14 is responsible to space the light assembly 12, and specifically to orient the housing 16 in order to both aim the light, and to secure the housing 16 to the ferrule 20. Again, the central axis of the beam of light 52 need not be coincident with the edge 23 of the bristles 22. In fact, so long as the circle of light 52 or other shape of light extends out (e.g., to the right side in the illustrated embodiment) of the edge 23, then a user can see and detect the position of the edge 23, and the color at the cut-in portion of the painted surface 54.
Referring to
In certain embodiments, the housing 16 may include lenses, focus materials, movable portions, or the like in order to better aim the light 52 emanating from the bulb 24. In other embodiments, the securement mechanism 14 operating as a standoff 14 may be general enough to capture the edge 23 of the bristles 22 in its projected light 52 within a sufficiently broad circle or other shape for virtually any cutting-in and distortions associated therewith.
Upon selecting 64 a particular light assembly 12, one may secure 66 the light assembly 12 by means of the holder 14 against a location on the ferrule 2019 of the brush 11. Typically, that location will be on the ferrule 20. This is a convenience because the ferrule 20 is typically made of a high-stress metal, which will often be a ferrous metal. Thus, typically, a ferrule 20 may be magnetic metal, and will receive and hold a magnet 14 as the holder 14.
Securing 66 the light assembly 12 might be as simple as setting a magnet 14 of the light assembly 12 against the ferrule 20, where it will be held by magnetic attraction. In other embodiments, such as those illustrated hereinabove, securement 66 may be temporary, permanent, or a combination. Similarly, it may easily removable, removable with difficulty, positionable without removal, or the like.
For example, a ball 42 type of securement mechanism 14 may be rotated and pivoted if the face 38 is tapered to provide a range of motion. By contrast, a hook-and-loop type of fastener 50 will have to be removed and re-secured to change in any direction.
Once the light assembly 12 is in place and properly aiming 74 the light 52 (beam on the lighted region), one may dip 68 the bristles 22 into a source or supply of paint in order to load the bristles 22 by capillary action with paint. Now, the brush 11 is ready to apply 70 the paint to the working surface 54. As the application 70 of paint to the working surface 54 or painted surface 54 continues, the brush may or may not be positioned for cutting-in. At a time that cutting-in is required, the bending 72 of the bristles 22 will effectively form the edge 23 as described hereinabove. Thus, bending 72 may be thought of as forming 72 the edge 23 required for cutting-in.
At this point, one may choose to check 74 or adjust 74, aim 74, or otherwise correct 74 the light assembly 12. Typically, the bulb 24 may be positioned in fixed relation to the housing 16, thus requiring a movement of the entire light assembly 12 in order to provide aiming. By whichever means, one may adjust 74 by a combination of checking, removing, rotating, or otherwise aiming 74 the bulb 24 in order to create the proper region of light 52 illuminating the edge 23 of the bristles 22.
As cutting-in 76 proceeds, one may check, by the light of the bulb 24, to determine that the paint is sufficiently thorough, provides the coverage, opacity, and so forth required. Similarly, the edge 23 of the line of paint on the painted surface 54 may be deemed completed. Thus, once the test 78 determines that the cutting-in 76 has not been done, and a negative response to the test 78 returns the process to dipping 68, and further applying 70, and so forth. Nevertheless, a positive or affirmative response to the test 78 indicates that the cutting-in 76 is done. Accordingly, the cutting-in 76 comes to an end 80. Nevertheless, portions of the process 58 may continue as other portions are painted where cutting-in 76 is not required.
Referring to
In this embodiment, the switch 30 as well as the securement 14 are showed in broken lines. This is because those items have been discussed in detail with respect to
For example, with respect to the illustrations of
Similarly, proceeding clockwise through the next design, which has something of a shield shape, such an apparatus may have a switch 30 and a securement 14 operating as a stand off 14 as described hereinabove, with a housing 16 shaped as illustrated. This embodiment looks the same from either side, and the front being a mirror image. In this embodiment, a row of LED's such as those illustrated in
Likewise, moving clockwise to the last design of
Referring to
One will note that the lights 24 are multiple in this, providing a comparatively low profile minimizing the moment (as the word is used in engineering parlance) or leverage. For example, if the apparatus 10 is bumped, then the lower profile tends to provide less leverage of such a touching of the housing 16 against the grip of the securement 14 fastened to the ferrule 20 or adhered to the ferrule 20. Thus, the apparatus 10 will be more stable in use. Likewise, by having a lower profile, the dynamics of motion and force inherent in movement of a brush 11 equipped with the light assembly 12 will minimize the disruption or movement of the light assembly 12, thus minimizing readjustments.
Referring to
Referring to
One advantage to the design of
Of course, a certain distance is required for the stand off 14 or securement 14 in order to position the light element 24 at a height that will illuminate (by the beam 52) the edge 23 of the bristles 22 as described hereinabove. Thus, the configurations of
The present invention may be embodied in other specific forms without departing from its purposes, functions, structures, or operational characteristics. The described embodiments are to be considered in all respects only as illustrative, and not restrictive. The scope of the invention is, therefore, indicated by the appended claims, rather than by the foregoing description. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
This application claims the benefit of U.S. Provisional Patent Application Ser. No. 61/838,930, filed Jun. 25, 2013, which is hereby incorporated by reference in its entirety.
Number | Date | Country | |
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61838930 | Jun 2013 | US |