Flocked ring mascara applicator and method of making the same

Information

  • Patent Grant
  • 6260558
  • Patent Number
    6,260,558
  • Date Filed
    Friday, July 21, 2000
    24 years ago
  • Date Issued
    Tuesday, July 17, 2001
    23 years ago
Abstract
A brush-type cosmetics applicator is provided that has bristle characteristics that vary at regular intervals along the length of the applicator. A plurality of annular members (e.g., disks, sleeves, rings, beads, etc.) are each individually formed by, for example, molding. Each annular member has a central bore. At least some of the plurality of annual members are flocked, preferably on an outwardly directed surface, with fibers of a desired diameter, hardness, flexibility, length and composition (material). The remaining annular members may not be flocked, or may be flocked with fibers having one or more characteristics different from the fibers used on the first group, e.g., a different diameter, hardness, flexibility, length or composition, or a combination thereof. Alternatively, each annular member of the second group may be flocked on a surface different from the surface flocked on each annular member of the first group. As another alternative, each annular member of the second group, whether flocked with the same or different fibers, or not flocked, may have a radial or axial dimension that is different from the annual members of the first group. Annular members from each group are arranged consecutively by way of the bore in each annular member on a shaft or pin to form the applicator portion of an applicator. The annular members are arranged in sequences that yield the desired applicator characteristics. For example, annular members from the first group may be provided with long bristles and be alternated with annular members from the second group provided with shorter bristles to form a brush-type applicator with improved coating and combing abilities.
Description




FIELD OF THE INVENTION




The present invention relates to a brush-type applicator with fibers extending from a core. More particularly, the invention concerns a brush-type cosmetic applicator with a core made from stacked annular members, each annular member having fibers extending from a surface, and method of making the applicator.




DESCRIPTION OF THE PRIOR ART




The conventional purpose of a mascara brush is to apply mascara to a user's eyelashes, preferably in a uniform manner in as few steps as possible. To this end, the application portion of a typical mascara brush may be constructed to accomplish more than one function. For example, a desirable brush would be capable of picking up and transporting a supply of mascara from a reservoir and depositing it on a user's eyelashes. Bristles that are more flexible are thought to be better suited for the purposes of transport and application. A desirable brush would also be capable of combing out clumps of excess mascara and separating lashes so that the need for a separate combing tool and a separate combing step are eliminated. Stiffer bristles are thought to be better suited for the purposes of combing and separating.




Brushes capable of accomplishing to a degree both application and combing have been achieved by mixing bristles having different characteristics in a single bristle head, or, in a brush having one bristle type throughout the bristle head, by compromising the characteristics of individual bristles. An example of a brush that is said to provide improved application and combing characteristics with mixed bristles is shown in U.S. Pat. No. 4,861,179 to Schrepf et al., which discloses a brush having a combination of soft bristles and stiff bristles. An example of a brush said to provide improved application and combing characteristics with uniform bristles throughout the bristle head is shown in U.S. Pat. No. 5,238,011 to Gueret, which discloses bristles of what is said to be a larger than typical diameter made of what is said to be a softer than typical material (shore hardness of 20A to 40D). Each of the foregoing examples is of a brush of typical twisted wire construction.




It is believed that further improved results in mascara application can be achieved by forming applicators with clustered bristle characteristics, i.e., bristle characteristics that vary at regular intervals along the length of the brush. Preferably, groups of bristles, each group suited for a particular purpose or purposes, can be arranged in alternating or consecutive order along the length of the brush. For example, a brush could be formed with groups of two types of bristles, e.g., one type for application and one type for combing, the two groups alternating along the length of the brush. The arrangement would yield a brush with alternating sections, each capable of maximum performance for a particular function, thus improving the overall performance of the brush.




A typical mascara brush is comprised of a core formed from a single metallic wire folded in a generally u-shaped configuration to provide a pair of parallel wire segments. Bristles (also referred to as filaments or fibers), usually comprised of strands of nylon, are disposed between a portion of a length of the wire segments. The wire segments are then twisted, or rotated, about each other to form a helical core (also known as a twisted wire core) which holds the filaments substantially at their midpoints so as to clamp them. In this way, a bristle portion or bristle head is formed with radially extending bristles secured in the twisted wire core in a helical or spiral manner. See, for example, U.S. Pat. No. 4,887,622 to Gueret, and U.S. Pat. No. 4,733,425 to Hartel et al. This construction method is well suited to forming a typical bristle type of applicator (i.e., a twisted wire core brush) having uniform bristle characteristics along the length of the brush. However, it is not well suited for consistently forming brushes with bristle characteristics that vary at regular intervals along the length of the brush.




A mascara applicator having one or more beads secured to a central axis is disclosed in U.S. Pat. No. 5,816,728 to Nardollilo et al. A mascara applicator having an array of disk-like rings is disclosed in U.S. Pat. No. 4,411,282 to Wavering. However, neither reference discloses bristles or fibers extending from an applicator surface. In addition, the Wavering reference appears to disclose an array that is formed as a single unit, not as individual annular members formed separately from one another.




Flocked applicators are also known. For example, an applicator having bristles secured to and extending from a ribbed flexer is disclosed in U.S. Pat. Nos. 4,527,575 and 4,404,977 to Vasas. Each rib of the flexer is said to be in the form of an annular disk, however, like the array disclosed by Wavering, the flexer disclosed by Vasas appears to be formed as a single unit, not as separate disks or annular members. U.S. Pat. No. 3,998,235 to Kingsford discloses a cosmetic applicator having a plurality of axially spaced coating surfaces treated with flocked fibers. The plurality of axially spaced coating surfaces appears to be formed as a single unit. One limitation common to the manufacture of flocked items is that, without great care or great expense, a single item cannot readily be flocked with adjacent sections of fibers, each section having fibers with different characteristics. Thus, the applicators disclosed in the Wavering, Vasas and Kingsford references would not be readily adaptable to have adjacent sections of bristles with different characteristics, or to have bristle characteristics that vary at regular intervals along the length of the applicator. Accordingly, there is a need for a mascara applicator that has varying bristle characteristics, and in particular a flocked applicator with bristle characteristics that vary at regular intervals along the length of the applicator.




BRIEF SUMMARY OF THE INVENTION




In accordance with the present invention, a brush-type cosmetics applicator is provided that has bristles (also referred to herein as fibers or filaments) arranged such that application characteristics vary at regular intervals along the length of the applicator. A plurality of annular members (e.g., disks, sleeves, rings, beads, etc.) are each individually formed by, for example, molding. Each annular member has a central bore. At least some of the plurality of annual members (i.e., a first group of the annular members) is flocked, preferably on an outwardly directed surface, with fibers (i.e., bristles) of a desired diameter, hardness (as measured, for example, with a durometer), flexibility, length and composition (material). Each of a second group of the annular members is flocked with fibers having one or more characteristics different from the fibers used on the first group, e.g., a different diameter, hardness, flexibility, length or composition, or a combination thereof. Alternatively, each annular member of the second group may not be flocked, or may be flocked on a surface different from the surface flocked on each annular member of the first group (e.g., an axially directed surface). As another alternative, each annular member of the second group, whether flocked with the same fibers or different fibers, or not flocked, may have a radial or axial dimension that is different from the annular members of the first group. Annular members from each group are then arranged consecutively (i.e., “stacked”) by way of the bore in each annular member on a shaft or pin to form the applicator portion of an applicator. The annular members are arranged in sequences that yield the desired applicator characteristics. For example, annular members from the first group provided with long bristles can be alternated with annular members from the second group provided with shorter bristles to form a brush-type applicator with improved coating and combing abilities.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a sectional side elevation view of a brush-type cosmetics applicator according to the invention;





FIG. 2

is an end elevation view of the applicator of

FIG. 1

;





FIG. 3

is a sectional view of an individual annular member with fibers attached according to the present invention;





FIG. 4

is sectional view of the applicator taken along sectional line


4





4


in

FIG. 1

;





FIG. 5

is a side elevation view of a shaft of the applicator of

FIG. 1

;





FIG. 6

is a sectional view of the shaft taken along sectional line


6





6


in

FIG. 5

;





FIG. 7

is a sectional view of an individual annular member before fibers are attached;





FIG. 8

is side elevation view of the individual annular member of

FIG. 7

; and





FIGS. 9



a


-


9




d


are sectional views of alternative embodiments of individual annular members with fibers attached.











DETAILED DESCRIPTION OF THE INVENTION




A brush-type applicator for applying a cosmetic product to hair or lashes is shown generally at


2


in FIG.


1


. The applicator


2


is comprised of an elongate shaft


10


(also see

FIGS. 5 and 6

) having a proximal end


12


, also referred to herein as a handle end, and a distal end


14


opposite the handle end


12


. The shaft


10


has a longitudinal axis


8


defined through the handle end


12


and distal end


14


. The proximal or handle end


12


of the shaft


10


may serve as a handle for manipulating the applicator


2


. More commonly, the proximal end


12


of the shaft


10


is connected to a handle (not shown) or a cap-handle combination (not shown) similar to those shown, for example, in U.S. Pat. No. 4,411,282 to Wavering and U.S. Pat. No. 4,527,575 to Vasas, each herein incorporated by reference in its entirety. The Wavering and Vasas references each also show an example of the type of cosmetic package in connection with which the present applicator would typically be used. These types of cosmetic packages, i.e., a container in combination with an applicator provided on the end of a shaft secured to a cap-handle, and the methods for making them are well known in the art.




A distal portion of the shaft


10


extending from the distal end


14


toward the handle end


12


is referred to herein as the applicator end


16


. The applicator end


16


of the shaft


10


is dimensioned and adapted to support brush-type applicator means


18


for coating, separating and combing hair or lashes. The brush-type applicator means


18


of the present applicator


2


is unique in that it is comprised of an array


30


of at least two annular members


20


,


22


. Each annular member


20


,


22


is separately formed as a unit, and each is individually disposed on the shaft


10


to form the array


30


such that desired applicator qualities are achieved. Each annular member


20


,


22


may be the same as the other, or differ from the other in one or more characteristics, discussed in greater detail below. The characteristics of the applicator along its length can be pre-determined by carefully selecting the characteristics of each of the annular members


20


,


22


, and carefully selecting the position of each of the annular members


20


,


22


in the array


30


.




The plurality of annular members


20


,


22


forming the array


30


should comprise at least a first annular member


20


and a second annular member


22


. The applicator depicted in

FIG. 1

is shown with eight first annular members


20


and eight second annular members


22


. However, these numbers are merely illustrative and it will be understood that the number of annular members


20


,


22


comprising the entire plurality can vary substantially depending on, for example, the dimension of each annular member along the axis


8


, the length along the axis


8


of the applicator end


16


. It will also be understood that, although the applicator is shown and described with an array


30


having at least two different types of annular members, e.g., for illustrative purposes, the first annular members


20


having shorter bristles and the second annular members


22


having longer bristles, the array


30


may have only one type of annular member (i.e., the annular members


20


,


22


may be identical), or the array


30


may have more than two types of annular members.




Each annular member


20


,


22


may take the form of a disk, a ring, a sleeve, a bead, or a like form (see


20


in

FIGS. 3

,


4


,


7


,


8


, and examples of alternative annular members


120


,


220


,


320


,


420


in

FIGS. 9



a


-


9




d


). Each annular member has a body


24


with an outer surface


26


. As shown in

FIG. 7

, the outer surface


26


may include a radially outwardly directed portion


29


(i.e., the cylindrical outer circumferential wall of the annular member) and lateral portions


27


(i.e., the opposite side walls of the annular member), and may include inwardly directed portion


28


(i.e., the inwardly directed surface of bore


32


). It will be clear from the examples provided by the sectional views of the preferred embodiment in

FIGS. 3 and 7

, and the alternative embodiments shown in

FIGS. 9



a


-


9




d,


that the individual annular members


20


,


120


,


220


,


320


,


420


and corresponding outer surfaces


26


,


126


,


226


,


326


,


426


may take a variety of forms. For example, outer surface


126


in

FIG. 9



a


is beveled, with a lateral portion


127


intersecting radially outwardly directed portion


129


at an angle. The lateral portion


127


is provided with fibers


17


. In

FIG. 9



b,


outer surface


226


is curved to form a bead-like annular member


220


. In

FIG. 9



c,


outer surface


326


is beveled, but lateral portion


327


is free of fibers, such that a fiber free clearance is formed when two annular members


320


are positioned adjacent to each other on the shaft


10


. As shown in

FIG. 9



d,


by providing outer surface


426


with an annular clearance or groove


425


, sleeve-like annular member


420


appears to be formed from two disk-like portions


421


,


422


. The clearance


425


may facilitate product loading on the applicator.




As noted above, the body


24


defines a bore


32


dimensioned to be received closely on the shaft


10


. The bore


32


and the shaft


10


may be configured such that the annular member


20


,


22


rotates freely on the shaft


10


. Alternatively, the bore


32


, as shown in

FIGS. 3

,


4


,


7


and


8


, and the shaft


10


, as shown in

FIGS. 4

,


5


and


10


may be cooperatively indexed to prevent the annular members


20


,


22


from rotating on the shaft. As illustrated, the bore


32


has a hexagonal cross-section that corresponds in shape and dimension to the hexagonal cross-section of the shaft


10


(see FIG.


6


). The corresponding cross-sections of the bore


32


and the shaft


10


prevent the annular members


20


,


22


from rotating relative to the shaft


10


. It will be understood that cross-sectional shapes other than the hexagonal shape shown can be used to index the annular members relative to the shaft, e.g., a square (not shown), a star (not shown), a key and channel (not shown), or the like. The body


24


of each annular member


20


,


22


is preferably radially symmetrical (e.g., round, oval), with the bore


32


centered in the body


24


, such that when the annular members


20


,


22


are in place on the shaft


10


, the array


30


will be radially symmetrical about the longitudinal axis


8


. Alternatively, the body


24


of some or all of the annular members


20


,


22


may be eccentrically shaped (e.g., ovoid), or may have the bore


32


offset from a central position in the body, such that all or portions of the array


30


will be radially eccentric relative to the longitudinal axis


8


.




The shaft


10


and each annular member


20


,


22


is made from a suitable well known material, such as, for example, POM (acetal), and by a well known method, such as, for example, molding. Other suitable materials for the shaft


10


and the annular members


20


,


22


may include metals, such as, for example, aluminum, carbon steel and stainless steel, or plastics and/or resins, such as, for example, styrene, polyethylene (including HDPE and LDPE), polypropylene (including PP), nylon, polyvinyl chloride, polyethylene terephtalate, polycarbonate, acrylic, and the like.




To provide the applicator with brush-like qualities, a plurality of fibers


17


(also referred to herein as bristles or filaments) may be added to at least some of the annular members


20


,


22


. The fibers


17


significantly enhance the product loading, wiping and application characteristics, and the separation and combing characteristics of the array


30


. The fibers


17


are preferably made of nylon, although the use of fibers made from other suitable materials, either natural or synthetic, is contemplated. For example, fibers made from plastic or rubber materials may be used, including, but not limited to, fibers made from acrylic, polyester, and rayon. The fibers may vary in length from about 0.25 mm to about 6.25 mm in length, depending on size of the supporting annular member and the desired application or combing characteristic(s) to be achieved. Each fiber


17


is attached by a first end


15


to the outer surface


26


of the annular member


20


or


22


. An opposite free end


19


of each fiber


17


is spaced apart from the outer surface


26


, such that each fiber extends outwardly away from the surface


26


. Preferably, the fibers


17


are attached to the outer surface


26


such that, when the annular members


20


,


22


are mounted on the shaft


10


, the fibers


17


generally extend radially outwardly relative to the longitudinal axis


8


of the shaft


10


. However, it is contemplated that for certain applications, it may be desirable to attach fibers


17


to portions of the outer surface


26


such that, when the annular members


20


,


22


are mounted on the shaft


10


, the fibers


17


are directed substantially along the longitudinal axis


8


of the shaft


10


(see

FIGS. 9



a


and


9




b


). When the annular members are provided consecutively in close, adjacent proximity on the shaft, fibers of adjacent annular members may intermingle as shown at the area indicated by arrow


11


in FIG.


1


.




The fibers


17


may be attached to the annular members


20


,


22


by adhesive or other suitable means. This can be accomplished by a suitable flocking process such as, for example, mechanical, electrostatic or wet dispersion flocking. A suitable flocking process is described, for example, in U.S. Pat. No. 4,527,575 to Vasas, incorporated herein by reference. An adhesive is coated onto selected portions of the outer surface


26


of the annular members


20


,


22


to form an adhesive layer


21


. The adhesive comprising adhesive layer


21


should be selected for compatibility with the material of the fibers


17


, the material of the annular members


20


,


22


and the material (e.g., cosmetic) that the applicator is intended to transport and apply. The adhesive should upon curing be capable of permanently securing the selected fibers


17


to the material of the annular members


20


,


22


. Before the adhesive layer


21


cures, fibers having suitable characteristics (e.g., length, hardness, flexibility, thickness, product compatibility, etc.), are provided to the adhesive layer


21


such that the first end


15


of each contacts and sticks to the adhesive layer


21


. This can be accomplished, for example, by electrostatically charging each fiber


17


, and subsequently providing each fiber


17


to the adhesive layer


21


by way of an electrical field that aligns the first end


15


of each fiber such that it contacts the adhesive layer


21


. When the adhesive cures, the first end


15


of each fiber


17


is securely anchored to the annular member


20


,


22


in the adhesive layer


21


. Alternatively, to avoid the use of adhesives, the flocking process can be integrated into the production process for the annular members


20


,


22


by providing the electrostatically charged fibers to selected surfaces of an annular member before that selected surface of the annular member is fully cured. Subsequent curing of the component surface will anchor the fibers perpendicularly in the surface. In any case, the selected surface portions of each annular member


20


,


22


are flocked before the array


30


is assembled on the shaft


10


.




In a preferred embodiment shown in

FIG. 1

, annular members


20


are provided with shorter bristles


53


, and annular members


22


are provided with longer bristles


55


. However, the length of the bristles on each of the annular members


20


,


22


may be the same, because the bristles or annular members may vary in other ways, as explained elsewhere herein.




As noted, the fibers may be applied to any selected portion of the outer surface


26


, e.g., the perimeter of the annular member (radially outwardly directed portion


29


), the side wall surfaces of the annular member (lateral portions


27


), or even the inwardly directed surface


28


of the bore


32


. Referring to

FIGS. 3

,


4


and


9


, flocked fibers


17


are shown in exemplary configurations on the annular members


20


,


120


,


220


,


320


and


420


.




As noted above, each annular member


20


,


22


is formed separately and apart from the applicator shaft, selectively provided with fibers


17


and subsequently individually and consecutively disposed about the shaft


10


at the applicator end


16


by way of the bore


32


. The array


30


of annular members


20


,


22


is secured to the shaft


10


by one of several methods. Each annular member


20


,


22


of the array


30


may be individually secured to the shaft by, for example, interference fit, adhesive, sonic welding, or other well known attaching methods or means. Alternatively, a first stop


40


and a second stop


41


is provided for retaining the array


30


of annular members on the applicator end


16


of the shaft


10


. The first stop


40


is located at the proximal end of the array


30


and the second stop


41


is located at the distal end


14


of the shaft


10


. The first stop


40


and the second stop


41


define an area on the shaft


10


within which axial movement of the array


30


of annular members is restricted. The first stop and the second stop can be any physical structure that creates a barrier to axial movement of an annular member


20


,


22


along the shaft


10


. For example, as depicted in

FIG. 1

, the shaft


10


can be provided with enlarged diameter portions, or stops


40


,


41


. The distal stop


41


is molded as part of the shaft


10


. The proximal stop


40


is a mechanically or heat deformed portion of the shaft


10


, also known as a staking crimp. Alternatively, the stops can be provided by fixedly securing one or both of the first and last annular members of an array


30


to the shaft


10


by, for example, adhesion, snap fit, interference fit, cooperating threads, etc. While at least one of the stops


40


,


41


can be provided to the shaft


10


during formation of the shaft, the other stop will need to be fixed to the shaft after the array


30


of annular members


20


,


22


has been positioned on the shaft. This can be accomplished, for example, by making the other stop a separate piece that can be fastened to the rod after the array


30


is in place on the shaft, or by mechanically deforming a portion of the shaft after the array


30


is in place.




As noted above, two or more annular members


20


,


22


are disposed consecutively, in close, adjacent proximity on the shaft along the applicator end


16


to form the array


30


. To assemble an applicator with particular characteristics, annular members


20


can be selected having fibers


53


made of a first material and having a hardness (as measured, for example, with a durometer), a flexibility, a diameter and a length, and annular members


22


can be selected having fibers


55


that differ from the fibers


53


on the annular members


20


by one of the material, the hardness, the flexibility, the diameter or the length. Alternatively, the fibers


53


,


55


on annular members


20


and


22


may be identical, while one of the shape, the radial dimension or the axial dimension of the body


24


of each of annular members


20


differs from that of annular members


22


. The annular members


20


,


22


having different fibers and/or dimensions are then assembled on shaft


10


to form an array


30


providing pre-determined application, combing, loading or other characteristics. The annular members


20


,


22


having different fibers and/or dimensions may be alternated along the array


30


as shown in

FIG. 1

, or may be provided in other sequences that yield the desired applicator characteristics.




One group of annular members can also be distinguished from another group of annular members by being free of fibers. This can be particularly useful where the intermingling fibers of adjacent flocked annular members yields overly crowded fiber zones (11). Flocked annular members can be spaced apart by inserting a spacer ring or an annular member that is free of fibers. In fact, for certain application purposes, providing annular members in the array that are free of fibers may be preferable to having all of the annular members in the array provided with fibers.




To make the brush-like applicator described above, at least a first annular member


20


and a second annular member


22


, each having a bore


32


and a supporting surface


26


, are formed. A first plurality of individual fibers


53


is attached to the supporting surface


26


of at least the first annular member


20


. Each of the individual fibers is attached to the mounting surface by one end


15


and has a free end


19


spaced apart from the mounting surface


26


. A shaft


10


dimensioned to receive the annular members


20


,


22


by way of the bore


32


is provided. The first and second annular members


20


,


22


are positioned and secured on the shaft.




As an example of a preferred embodiment, a brush-like applicator


2


having the following dimensions is contemplated. A shaft


10


is formed from POM (acetal) by injection molding. The shaft


10


has a length from the proximal or handle end


12


to the distal end


14


(including the applicator end


16


of the shaft) of 39.9 mm. The shaft


10


has an octagonal cross-section with a maximum cross-sectional dimension (measured from corner-to-corner across the octagonal section) of just under 1.2 mm. The applicator end


16


of the shaft


10


, i.e., the portion supporting flocked annular members


20


,


22


, is approximately 26.5 mm long. The 26.5 mm dimension is sufficiently long to support consecutively sixteen 1.5 mm wide annular members, a proximal stop


40


and a distal stop


41


. The distal stop


41


is molded as an integral part of the shaft


10


and has a diameter of 3.5 mm. The distal stop


41


tapers in a distal direction to a blunt end. The proximal stop


40


is provided to the shaft


10


by mechanical or heat deformation of a portion of the shaft


10


after the complete array of annular members


20


,


22


are positioned on the shaft.




Sixteen annular members


20


,


22


are individually formed by injection molding from POM (acetal). In the embodiment shown, each of the annular members has a body


24


with identical dimensions. A centrally located octagonal cross-section bore


32


is provided in the body


24


and is dimensioned to be received on the applicator end


16


of the shaft


10


, i.e., the bore has an inside dimension across the corners of the octagonal cross-section of 1.2 mm or slightly larger. The body


24


of each annular member


20


,


22


is disk-like with a diameter of 3 mm and a width of 1.5 mm. Thus, the disk-like body defines a 1.5 mm wide cylindrical surface


29


(like the edge of a coin).




An adhesive suitable for permanently securing nylon fibers to POM plastic (e.g., an epoxy) is provided in a layer


21


applied to the cylindrical surface


29


of each of a first group of eight annular members (annular members


20


). Before the adhesive cures, fibers


53


are deposited by well known flocking methods such that one end


15


of each fiber is embedded in the adhesive layer


21


and thereby attached to the surface


29


, while an opposite end


19


extends away from the surface


29


. The fibers


53


are relatively shorter (about 1.25 mm), softer fibers to yield an overall outside diameter for each of this group of annular members of 5.5 mm. Similarly, adhesive is applied in a layer


21


to the cylindrical surface


29


of a second group of annular members (annular members


22


), and fibers


55


are deposited by flocking such that each is embedded by one end


15


in the adhesive. The fibers


55


are relatively longer (about 2.25 mm), stiffer fibers yielding an overall outside diameter of 7.5 mm for each of the eight annular members


22


of the second group.




The free ends


19


of the extending fibers


53


,


55


of annular members of both the first and second group are splayed apart somewhat relative to each other and to the 1.5 mm width of the cylindrical surface to which the adhered ends


15


are attached. Accordingly, the splayed free ends


19


define an overall width of approximately 2.76 mm, substantially wider than the 1.5 mm width of the body


24


of each annular member


20


,


22


.




After the sixteen annular members


20


,


22


are formed and flocked in two groups of eight (eight with longer, stiffer fibers and eight with shorter, softer fibers), they are installed on the shaft


10


by sliding them consecutively over the handle end


12


onto the applicator end


16


. Annular members


22


having longer, stiffer bristles are alternated along the length of the shaft


10


with annular members


20


having shorter, softer fibers. Each annular member


20


,


22


is positioned in close adjacent proximity to the next annular member


20


,


22


, so that little or no space is provided between adjacent members. Since there is little or no space between adjacent annular members


20


,


22


, the free ends


19


of oppositely splayed fibers


53


,


55


of adjacent annular members intermingle in the zone indicated by arrow


11


. After all sixteen of the annular members


20


,


22


are properly positioned on the shaft


10


, the proximal stop


40


is provided to the shaft


10


by mechanical or heat deformation of a portion of the shaft.




With the foregoing structural arrangement and method of assembly, a manufacturer of applicators need only produce and stock a limited number of annular member types, from which a large variety of applicator types, each having different application characteristics, can be assembled merely by varying the combinations and/or sequence of the annular members forming the array.




While the invention has been described and illustrated as embodied in preferred forms of construction, it will be understood that various modifications may be made in the structure and arrangement of the parts without departing from the spirit and the scope of the invention recited in the following claims.



Claims
  • 1. An applicator for applying a cosmetic product to hair or lashes, the applicator comprising:an elongate shaft having a handle end and an applicator end, and a longitudinal axis defined from the handle end through the applicator end; an array having at least a first annular member and a second annular member, each of said annular members being formed separately and having a central bore through which each annular member is disposed alone a length of the shaft at the applicator end, each annular member made of a material and having a radial dimension and an axial dimension; and a first plurality of fibers each of which is made of a material and has a hardness, a flexibility, a diameter and a length, each of which is attached to a surface of the first annular member by a first end and each of which has an opposite free end spaced apart from the surface of the first annular member.
  • 2. The applicator of claim 1 wherein the fibers are attached to the surface by adhesion.
  • 3. The applicator of claim 1 wherein each of the material, the radial dimension and the axial dimension of the first annular member is the same as each of the material, the radial dimension and the axial dimension of the second annular member.
  • 4. The applicator of claim 1 wherein the first annular member differs from the second annular member by at least one of the material, the radial dimension and the axial dimension.
  • 5. The applicator of claim 1 wherein the shaft further comprises a proximal stop and a distal stop, and the array is provided between the stops to restrict axial movement of the array.
  • 6. The applicator of claim 1 wherein the shaft and the bore of at least one of the first annular member and the second annular member are cooperatively indexed to prevent the at least one of the first annular member and the second annular member from rotating on the shaft.
  • 7. The applicator of claim 1 further comprising a second plurality of fibers each of which is made of a material and has a hardness, a flexibility, a diameter and a length, each of which is attached to a surface of the second annular member by a first end and each of which has an opposite free end spaced apart from the surface of the second annular member.
  • 8. The applicator of claim 7 wherein each of the material, the radial dimension and the axial dimension of the first annular member is the same as each of the material, the radial dimension and the axial dimension of the second annular member.
  • 9. The applicator of claim 7 wherein the first annular member differs from the second annular member by at least one of the material, the radial dimension and the axial dimension.
  • 10. The applicator of claim 7 wherein each of the material, the hardness, the flexibility, the diameter and the length of each fiber comprising the second plurality of fibers is the same as each fiber comprising the first plurality of fibers.
  • 11. The applicator of claim 10 wherein each of t he material, the radial dimension and the axial dimension of the first annular member is the same as each of the material, the radial dimension and the axial dimension of the second annular member.
  • 12. The applicator of claim 10 wherein, the first annular member differs from the second annular member by at least one of the material, the radial dimension and the axial dimension.
  • 13. The applicator of claim 7 wherein each fiber comprising the second plurality of fibers differs from each fiber comprising the first plurality of fibers by at least one of the material, the hardness, the flexibility, the diameter and the length.
  • 14. The applicator of claim 13 wherein each of the material, the radial dimension and the axial dimension of the first annular member is the same as each of the material, the radial dimension and the axial dimension of the second annular member.
  • 15. The applicator of claim 13 wherein the first annular member differs from the second annular member by at least one of the material, the radial dimension and the axial dimension.
  • 16. An applicator for applying a cosmetic product to hair or lashes, the applicator comprising:an elongate shaft having a handle end and an applicator end, and a longitudinal axis defined from the handle end through the applicator end; an array having at least a first annular member and second annular member, each of said annular members being formed separately and having a central bore through which each annular member is disposed along a length of the shaft at the applicator end; and a first plurality of fibers each made of a material and each having a hardness, a flexability, a diameter and a length, the first plurality of fibers attached to a surface of the first annular member by flocking.
  • 17. The applicator of claim 16 further comprising a second plurality of fibers each made of a material and each having a hardness, a flexibility, a diameter and a length, the second plurality of fibers attached to a surface of the second annular member by flocking.
  • 18. The applicator of claim 17 wherein the material, the hardness, the flexibility, the diameter and the length of fibers comprising the first plurality of fibers is substantially the same as the material, the hardness, the flexibility, the diameter and the length of fibers comprising the second plurality of fibers.
  • 19. The applicator of claim 17 wherein fibers comprising the first plurality of fibers differ from fibers comprising the second plurality of fibers by at least one of the material, the hardness, the flexibility, the diameter and the length.
  • 20. A method for making an applicator, the applicator having an array of annular members supported on an applicator end of a shaft opposite a handle end, the method comprising:providing at least a first annular member and a second annular member, each annular member having a bore and a supporting surface; attaching a first plurality of fibers to the supporting surface of the first annular member, substantially each of the fibers attached to the supporting surface by one end and having a free end extending away from the supporting surface; and mounting each of the first annular member and the second annular member by way of its respective bore consecutively on the applicator end of the shaft.
  • 21. The method of claim 20 further comprising attaching a second plurality of fibers to the supporting surface of the second annular member, substantially each of the fibers attached to the supporting surface of the second annular member by one end and having a free end extending away from the supporting surface of the second annular member.
  • 22. The method of claim 21 wherein fibers comprising the first plurality of fibers differ from fibers comprising the second plurality of fibers by at least one of a material, a hardness, a flexibility, a diameter and a length.
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4572224 Rosenwinkel et al. Feb 1986
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