Information
-
Patent Grant
-
6260558
-
Patent Number
6,260,558
-
Date Filed
Friday, July 21, 200024 years ago
-
Date Issued
Tuesday, July 17, 200123 years ago
-
Inventors
-
Original Assignees
-
Examiners
- Wilson; John J.
- Doan; Robyn Kieu
Agents
-
CPC
-
US Classifications
Field of Search
US
- 132 218
- 132 313
- 132 317
- 132 320
- 401 122
- 401 129
- 401 126
- 401 127
- 401 128
- 015 206
- 015 207
-
International Classifications
-
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.
US Referenced Citations (24)