U.S. patent application number 11/832023 was filed with the patent office on 2008-02-07 for dispenser applicator with integrated wiper and process of manufacture.
Invention is credited to Patrick Lhoyer.
Application Number | 20080031676 11/832023 |
Document ID | / |
Family ID | 37944410 |
Filed Date | 2008-02-07 |
United States Patent
Application |
20080031676 |
Kind Code |
A1 |
Lhoyer; Patrick |
February 7, 2008 |
Dispenser Applicator With Integrated Wiper And Process Of
Manufacture
Abstract
The dispenser applicator (1) for a cosmetic product, typically a
mascara, has an axial direction (10) and comprises a body (2)
comprising a typically threaded neck (20) and a container (21) for
said cosmetic product, said neck (20) being unitary with a wiper
(3), and an applicator (4) comprising: a) a) a manual prehension
means (40), b) an axial rod (4) which is oriented along said axial
direction (10), c) an application means 42), said axial rod (41)
being unitary with said manual prehension means (40) at is its
so-called upper end (410), and with said application means (42) at
its so-called lower end (411). It is characterized in that said
wiper (3) is a so-called single-piece wiper (3') defining with said
body (2) a single-piece member (5) which is molded with plastic
material. Said wiper (3) constitutes with said body (2) a
single-piece member (5) which is molded with plastic material and
in that said wiper comprises a plurality of N radial tongues (30),
said radial tongues (30) being typically identical and regularly
disposed around said axial direction (10), two consecutive radial
tongues defining an angle of 360.degree./N between one another.
Inventors: |
Lhoyer; Patrick; (Mouy,
FR) |
Correspondence
Address: |
BANNER & WITCOFF, LTD.
TEN SOUTH WACKER DRIVE
SUITE 3000
CHICAGO
IL
60606
US
|
Family ID: |
37944410 |
Appl. No.: |
11/832023 |
Filed: |
August 1, 2007 |
Current U.S.
Class: |
401/122 ;
401/118; 401/121; 401/126; 401/129 |
Current CPC
Class: |
B29B 2911/14133
20130101; B29B 2911/14333 20130101; B29B 11/08 20130101; B29C 49/06
20130101; B29C 53/086 20130101; A45D 40/267 20130101; B29C 49/0073
20130101; B29B 11/14 20130101; B29B 2911/14033 20130101; B29B
2911/14506 20130101; B29C 2791/001 20130101; B29B 2911/1402
20130101; B29K 2023/12 20130101; B29B 2911/1444 20130101; B29B
2911/1404 20130101; B29B 2911/14106 20130101; B29B 2911/1442
20130101; B29L 2031/7158 20130101; B29K 2023/06 20130101; B29B
2911/14026 20130101; B29B 2911/14326 20130101; B29L 2031/718
20130101 |
Class at
Publication: |
401/122 ;
401/118; 401/121; 401/126; 401/129 |
International
Class: |
A46B 11/00 20060101
A46B011/00 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 3, 2006 |
FR |
06 07104 |
Claims
1. Dispenser applicator (1) for a cosmetic product, having an axial
direction (10) and comprising a body (2) comprising a neck (20) and
a container (21) for said cosmetic product, said neck (20) being
unitary with a wiper (3), and an applicator (4) comprising: a) a
manual prehension means (40), b) an axial rod (41) oriented
according to said axial direction (10), c) an application means
(42), said axial rod (41) being unitary with said manual prehension
means (40) at its so-called upper extremity (410), and with said
application means (42) at its so-called lower extremity (411); said
wiper (3) defines with said body (2) a single-piece member (5)
which is molded of plastic material; and said wiper comprises a
plurality of N radial tongues (30), said radial tongues (30) being
identical and regularly disposed around said axial direction (10),
two consecutive radial tongues define therebetween an angle of
360.degree./N.
2. Dispenser applicator according to claim 1 in which the number N
of radial tongues (30) ranges from 2 to 10, and typically from 3 to
8, and is preferably 6.
3. Dispenser applicator according to claim 1 in which said radial
tongues (30) define a substantially truncated wall (31) with a top
angle equal to 2..beta. ranging from 50.degree. to 140.degree.,
said truncated wall (31) defining at its lower part an orifice
(310) of diameter D1 and connecting to said neck (20) at its lower
part by means of its base (311) of diameter D2>D1, diameter D2
typically corresponding to the interior diameter of said neck
(20).
4. Dispenser applicator according to claim 3 in which the diameter
D2 is comprised between 0.3.D2 and 0.8.D2, and typically between
0.4.D2 and 0.7.D2.
5. Dispenser applicator according to claim 3 in which said radial
tongues (30) are connected to said neck (20) through said base
(311) of said truncated wall (31).
6. Dispenser applicator according to claim 5 in which said radial
tongues (30) are connected to said neck (20) through its lower
extremity (200).
7. Dispenser applicator according to claim 1 in which said radial
tongues (30) are at least in part butt-jointed, at the level of
said orifice (310), so as to provide a self-blocking of said radial
tongues (30) between one another and thereby preventing any risk of
turnaround of said tongues towards the exterior of said body when
said applicator (4) is separated from said body (2), said means of
manual prehension (40) of said applicator (4) defining a cap
adapted to seal said body (2) by screwing it onto said threaded
neck (20).
8. Dispenser applicator according to claim 7 in which said radial
tongues (30) are radial tongues that are butt-jointed along their
entire radial length.
9. Dispenser applicator according to claim 1 in which said
single-piece wiper (3) is flexible with respect to said axial
direction (10), typically it is resiliently flexible, said radial
tongues (30) being adapted to move away from said axial direction
(10) under a constraint when said application means (42) of said
applicator (4) is introduced in said body (2) and acts jointly with
said wiper (3'), so as to constitute a pseudo truncated wall with a
top angle of 2..beta.'<2..beta.. said tongues reverting back to
their position and defining said substantially truncated wall (31)
with a top angle of 2..beta. when said constraint stops.
10. Process for manufacturing a body (2) of a dispenser applicator
(1) according to claim 1 in which, by means of a molding device
(8), and in order to make said single-piece molded member (5): a) a
so-called first outline body (6) comprising an outline container
(60) and a typically threaded neck (61) comprising a plurality of N
outline tongues (62) disposed inside said neck (61) and outwardly
oriented with respect to said outline container (60), is made by
compression molding of a thermoplastic material in cooperation with
an outline mold (80) made of two parts (80a, 80b) and a molding
nucleus or punch (81) typically comprising a plurality of N axial
cavities (812) adapted to constitute by molding said plurality of N
outline tongues (62), b) a so-called second body outline (7)
comprising said container (21) of said body (2) is made by blowing
in a finishing mold, said first outline body (6), said container
(21) of said body (2) typically comprising a bottom (210), a
lateral skirt (211) and a shoulder (212) connecting said lateral
skirt (211) to said neck (20), c) then, typically by means of a
turnaround device (9), said plurality of N outline tongue (62) are
caused to be pivoted towards the interior of said container (212),
in order to orient said N outline tongues (62) towards the interior
of said body (2), said body (2) then being at a so-called inversion
temperature, which is lower than the molding temperature of said
outline, and is chosen to be low enough so that said tongues remain
unitary with said neck and high enough so that said plurality of
tongues are sufficiently flexible with respect to said neck to
allow said outline tongues (62) to pivot, so as to constitute said
single-piece member (5) provided with said single-piece wiper (3')
comprising said plurality of N radial tongues (30) typically
defining said truncated wall (31).
11. Process according to claim 10 in which said plurality of N
axial cavities (812) is disposed in a manner that said plurality of
N radial tongues (30) are connected to the neck (20) at its lower
end (200) by means of an annular connecting zone (22).
12. Process according to claim 10 in which said plurality of
outline tongues (62) is allowed to pivot by introducing in said
neck (20) a punch (9') constituting said turnaround device (9), in
a manner to cause said plurality of outline tongues (62) to tip
over towards the interior of said body (2).
13. Process according to claim 12 in which said turnaround punch
(9') comprises an annular member (90) and a central member (91)
adapted to slide in said annular member (90).
14. Process according to claim 13 in which said annular member (90)
comprises an exterior crown (900) adapted to come into abutment
against said neck (20) and an interior crown (901) having a lower
extremity (902) defining a bevel forming an angle .alpha. which
typically ranges from 10.degree. to 70.degree., so that said lower
extremity (902) direct said plurality of outline tongues (62)
towards the interior of said body (2).
15. Process according to claim 13 in which, to operate said
turnaround device (9), said annular member (90) is first introduced
into said neck (20), said interior crown (901) of said annular
member (90) having an axial height that is greater than the
distance d between said connecting zone (22) of said tongues and
the upper extremity (201) of said neck, in a manner that, when said
exterior crown (900) comes into abutment against said neck (20),
said interior crown (901) acts jointly with said outline tongues
(62) by turning them over towards the interior of said body (2),
then said central member (91) is allowed to slide in said annular
member (90) so as to constitute a plurality of outline tongues
(62b) having pivoted by an angle .gamma. near 180.degree., and so
that, after retraction of said turnaround device (9), said radial
tongues (30) are formed, said outline tongues (62b), especially
through the elastic memory, revert back in reverse direction until
reaching their angular blocking point formed by their lateral edge
to edge contact, by forming said truncated wall having an angle
2..beta. ranging from 50.degree. to 140.degree..
16. Process according to claim 10 in which said single-piece member
(5) is made of a plastic material typically selected from a
polyolefin, for example PE or PP.
Description
BACKGROUND OF THE INVENTION
[0001] (a) Field of the Invention
[0002] The invention concerns the field of dispenser applicators
for cosmetic products, typically for mascara.
[0003] (b) Description of the Prior Art
[0004] Dispenser applicators for cosmetic products and mascara in
particular, comprise a container defining a reservoir for said
cosmetic product or said mascara with a threaded neck provided with
a wiper, and an applicator comprising an axial rod provided at one
end with a threaded cap, and at the other end with an application
means, typically a brush, the threaded cap being associated with
the neck to seal the reservoir, and the wiper having a diameter
selected to allow the rod to pass therethrough and to wipe the
application means, for example a brush loaded with a product to be
applied every time the applicator is removed from the
reservoir.
[0005] The applicator is generally made by assembling at least
three members: a member defining an exterior cap, a single-piece
member of plastic material comprising said rod provided at one end
with an insert or a part that is snappable in said exterior cap,
and an application means, for example a brush, adapted to be fixed
at the other end of said rod.
[0006] Typically, the reservoir is a article of plastic material
generally made by molding, the wiper being a separate member,
typically made of an elastomer, which is snapped onto the neck.
[0007] However, French Patent No. 2,733,734 is already known to
teach a container defining a reservoir comprising a neck with
interior truncated shape in a manner to obtain a decreased diameter
of the neck which is adapted to wipe out liquid from the brush of
the applicator.
[0008] On the one hand, known containers comprise a body for said
cosmetic product, which is provided with a typically threaded neck,
and a wiper fixed to the neck, the body and the wiper being two
distinct molded members typically assembled by snapping, welding or
gluing. The problem which is raised with respect to the traditional
dispenser applicators is the manufacturing cost of these containers
since such a manufacture requires the supply or the manufacture of
two distinct members, i.e. the body and the wiper, and the assembly
thereof into a unitary body.
[0009] On the other hand, the proposal made in French Patent No.
2,733,734 to dispense with a wiper has not replaced the traditional
containers in spite of its lesser cost, because, in practice, the
proposal made in this Patent could only be used with low capacity
bodies, typically bodies adapted to distribute samples, since
molding of these bodies requires a nucleus of small diameter
corresponding to the diameter of the wiping orifice.
[0010] The applicant has therefore searched for a means to solve
all these problems.
SUMMARY OF THE INVENTION
[0011] According to the invention, the dispenser applicator for a
cosmetic product, typically a mascara, is made with an axial
direction and comprises a body comprising a typically threaded neck
and a container for said cosmetic product, said neck being integral
with a wiper, and an applicator comprising: [0012] a) a manual
prehension means, [0013] b) an axial rod oriented along said axial
direction, [0014] c) an application means, said axial rod being
unitary with said manual prehension means at its so-called upper
end, and with said application means at its so-called lower end. It
is characterized in that said wiper is a so-called single-piece
wiper defining a single-piece member with said body, said
single-piece member being molded with plastic material, and in that
said wiper comprises a plurality of N radial tongues (30), said
radial tongues (30) being identical and regularly disposed about
said axial direction (10), two consecutive radial tongues defining
between them an angle of 360.degree./N.
[0015] This dispenser applicator solves the problems raised since,
on the one hand, the body comprises a wiper, the word "wiper"
adopting here the known meaning of this word in traditional
dispenser applicators, and on the other hand, this wiper and said
body constitute a single-piece molded member.
[0016] Thus, the invention makes it possible to obtain the same
performances as the traditional dispenser applicators, while
reducing the number of members to be molded and assembled, which
represents a great advantage in practice.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] FIGS. 1a to 9b relate to the invention, FIG. 10 being
concerned with prior art.
[0018] FIGS. 1a and 1b are axial cross-sections along the axial
direction 10.
[0019] FIG. 1a is a schematic representation of a molding device 8
comprising an outline mold 80 made of two parts 80a, 80b, which
cooperate with a central nucleus 81 provided with a plurality of
axial projections 810, in a manner to define a molding cavity
provided with an orifice 800.
[0020] FIG. 1b represents the first outline body 6 obtained by
molding a thermoplastic material by means of the molding device 8
of FIG. 1a.
[0021] FIGS. 2a to 2g relate to the central nucleus 81 used for the
tests.
[0022] FIG. 2a is an axial cross-section of the central nucleus 81
comprising a plurality of members.
[0023] FIG. 2b is a side view of the central nucleus 81.
[0024] FIG. 2c is a partial side view of the lower part of the
central nucleus 811 obtained after having removed the peripheral
crown 810 of the nucleus 81.
[0025] FIG. 2d is an enlarged view of the portion of FIG. 2a that
is circled with a dotted line.
[0026] FIG. 2e is an enlarged view of the portion of FIG. 2c which
is circled with a dotted line, the central nucleus 811 comprising a
plurality of hollowed parts 812 facing peripheral crown 810, in a
manner to make it possible to obtain a plurality of outline tongues
62 by molding.
[0027] FIG. 3 is a view similar to FIG. 1a in which, the first
outline 6 having been formed, the outline mold 80 has been replaced
by a finishing mold 82 for the purpose of obtaining the second
outline 7 by blowing, a fluid under pressure being introduced
through an axial duct 813 as schematically represented by an arrow
in dark line in order to obtain container 2.
[0028] FIG. 4 is a axial cross-section view of the second outline 7
obtained after blowing the first outline 6 with the device of FIG.
3.
[0029] FIGS. 5 and 6 are views in axial cross-section which
illustrate the turnaround of the plurality of outline tongues 62 as
upwardly oriented in the second outline 7 for the purpose of
obtaining the single-piece wiper 3' according to the invention. On
the right part of FIG. 5, which is similar to the right part of
FIG. 4, the annular member 90 has been illustrated in an upper
position intended to initiate the turnaround of the plurality of
outline tongues 62. On the left part of FIG. 5, the annular member
90 has been illustrated in low position and in abutment against the
neck, so as to obtain an inclined outline tongue 62a. On FIG. 6,
the central member 91 of the turnaround punch 9' has been
introduced in the annular member 90 so as to obtain a plurality of
downwardly turned outline tongues 62b.
[0030] FIG. 7 is a view of the annular member 90, a lower part
being represented in axial cross-section, and an upper part being
represented in side view.
[0031] FIG. 8a is a view in axial cross-section of body 2 according
to the invention obtained after removal, on FIG. 6, of the
different members 90, 91 of the turnaround punch 9'.
[0032] FIG. 8b is a view from underneath of the single-piece wiper
3' made of a plurality of but-jointed radial tongues 30 in the
shape of a truncated cone.
[0033] FIGS. 9a and 9b represent a dispenser applicator 1, opened
in FIG. 9a and closed in FIG. 9b, the applicator 4, being
unscrewed, facing body 2 on FIG. 9a.
[0034] FIG. 10 is a partial cross-section of a wiper 3 mounted on a
body 2 according to the prior art.
DESCRIPTION OF PREFERRED EMBODIMENTS
[0035] According to the invention, wiper 3' may comprise a
plurality of N radial tongues 30, the radial tongues 30 typically
being identical and regularly disposed around axial direction 10,
two consecutive radial tongues defining between them an angle of
360.degree./N, as illustrated for example in FIG. 8b.
[0036] The number N of radial tongues 30 may be from 2 to 10, and
typically from 3 to 8, and is preferably 6.
[0037] As illustrated in FIG. 8a, radial tongues 30 may constitute
a substantially truncated wall 31 with a top angle of 2..beta.
ranging from 50.degree. to 140.degree., truncated wall 31 defining
at its lower end an orifice 310 of diameter D1 and connecting to
neck 20 at its upper end by means of its base 311 of diameter
D2>D1, diameter D2 typically corresponding to the interior
diameter of neck 20.
[0038] Diameter D1 may be comprised between 0.3.D2 and 0.8.D2, and
typically between 0.4.D2 and 0.7.D2.
[0039] Typically, radial tongues 30 may be connected to neck 20
through base 311 of truncated wall 31.
[0040] In addition, radial tongues 30 may be connected to neck 20
through its lower extremity 200.
[0041] According to the invention, radial tongues 30 may at least
in part be butt-jointed, typically at the level of orifice 310, so
as to provide a self-blocking of radial tongues 30 between one
another and thereby preventing any risk of turnaround of the
tongues towards the exterior of the body when applicator 4 is
separated from body 2, the means of manual prehension 40 of
applicator 4 defining a cap adapted to seal body 2 by screwing it
onto threaded neck 20.
[0042] As illustrated in FIG. 8b, radial tongues 30 may be radial
tongues that are typically butt-jointed along their entire radial
length.
[0043] As illustrated in FIG. 8a, single-piece wiper 3 may be
flexible with respect to axial direction 10, typically it may be
resiliently flexible, radial tongues 30 being adapted to move away
from axial direction 10 under a constraint when the application
means 42 of applicator 4 is introduced in body 2 and acts jointly
with wiper 3', so as to constitute a pseudo truncated wall with a
top angle of 2..beta.'<2..beta., the tongues reverting back to
their position and defining substantially truncated wall 31 with a
top angle of 2..beta. when the constraint stops.
[0044] Another object of the invention is provided by the process
of manufacture of a body 2 of a dispenser applicator 1 according to
the invention.
[0045] In this process, by means of a molding device 8, and in
order to make single-piece molded member 5: [0046] a) a so-called
first outline body 6 comprising an outline container 60 and a
typically threaded neck 61 comprising a plurality of N outline
tongues 62 disposed inside neck 61 and outwardly oriented with
respect to outline container 60, is made by compression molding of
a thermoplastic material in cooperation with an outline mold 80
made of two parts 80a, 80b and a molding nucleus or punch 81
typically comprising a plurality of N axial cavities 812 adapted to
constitute by molding the plurality of N outline tongues 62, [0047]
b) a so-called second outline body 7 comprising container 21 of
body 2 is made by blowing in a finishing mold, the first outline
body 6, container 21 of body 2 typically comprising a bottom 210, a
lateral skirt 211 and a shoulder 212 connecting lateral skirt 211
to neck 20, [0048] c) then, typically by means of a turnaround
device 9, the plurality of N outline tongues 62 are caused to be
pivoted towards the interior of container 212, in order to orient
the N outline tongues 62 towards the interior of body 2, body 2
then being at a so-called inversion temperature, which is lower
than the molding temperature of the outline, and is chosen to be
low enough so that the tongues remain unitary with the neck and
high enough so that the plurality of tongues are sufficiently
flexible with respect to the neck to allow the outline tongues 62
to pivot, so as to constitute single-piece member 5 provided with
single-piece wiper 3' comprising the plurality of N radial tongues
30 typically defining truncated wall 31.
[0049] The plurality of N axial cavities 812 may be disposed in a
manner that the plurality of N radial tongues 30 are connected to
the neck 20 at its lower end 200 by means of an annular connecting
zone 22.
[0050] As illustrated in FIGS. 5 and 6, it is possible to allow the
plurality of outline tongues 62 to pivot by introducing in neck 20
a punch 9' constituting turnaround device 9, in a manner to cause
the plurality of outline tongues 62 to tip over towards the
interior of body 2.
[0051] As illustrated in FIG. 6, turnaround punch 9' may comprise
an annular member 90 and a central member 91 capable of sliding in
annular member 90.
[0052] As illustrated in FIG. 7, annular member 90 may comprise an
exterior crown 900 adapted to come into abutment against neck 20
and an interior crown 901 having a lower extremity 902 defining a
bevel forming an angle .alpha. which typically ranges from
10.degree. to 70.degree., so that the lower extremity 902 directs
the plurality of outline tongues 62 towards the interior of body
2.
[0053] To operate turnaround device 9, and as illustrated in FIG.
5, annular member 90 may first be introduced into neck 20, the
interior crown 901 of annular member 90 having an axial height that
is greater than the distance d between connecting zone 22 of the
tongues and the upper extremity 201 of the neck, in a manner that,
when exterior crown 900 comes into abutment against neck 20,
interior crown 901 acts jointly with outline tongues 62 by turning
them over towards the interior of body 2, then central member 91 is
allowed to slide in annular member 90 so as to constitute a
plurality of outline tongues 62b having pivoted by an angle .gamma.
near 180.degree., and so that, after retraction of turnaround
device 9, radial tongues 30 are formed, outline tongues 62b,
especially through elastic memory, revert back in reverse direction
until reaching their angular blocking point formed by their lateral
edge to edge contact, by forming the truncated wall having an angle
2..beta. ranging from 50.degree. to 140.degree..
[0054] According to the invention, single-piece member 5 may be
made of a plastic material typically selected from a polyolefin,
for example PE or PP.
EXAMPLE
[0055] Single-piece members 5 of PE were manufactured by molding
according to the process of the invention: [0056] initially, the
first outline bodies 6 were prepared by being provided with 6
outline tongues 62, as illustrated in FIG. 1b, by using the molding
means illustrated generally in FIG. 1a and in detail on FIGS. 2a to
2e with respect to the nucleus 81. In FIG. 1a, the arrow symbolizes
the injection of PE in the closed cavity formed par cooperation of
the two parts 80a,80b of outline mold 80, and nucleus 81, [0057]
the first outline bodies 6 were then blown to constitute the second
outline bodies 7, as illustrated in FIGS. 3 and 4, [0058] finally
the turnaround of the outline tongues 62 was carried out, as
illustrated in FIGS. 5 to 7, in a manner to obtain the single-piece
members 5 as illustrated in FIGS. 8a and 8b. On FIG. 7, the
dimensions are expressed in mm.
[0059] These single-piece members 5 had an exterior diameter of 16
mm corresponding to the exterior diameter of the cylindrical
container 21, and a total height of 88 mm with a height of the
container 21 of 80 mm and a height for neck 20 of 8 mm.
[0060] These single-piece members 5, through the addition of
applicators 4, were used to constitute dispenser applicators 1 for
mascara as illustrated in FIGS. 9a and 9b, which had a height of
124 mm and an exterior diameter of 16 mm which is constant along
its entire height.
[0061] These dispenser applicators 1 for mascara were tested by
mascara users. It was found that the single-piece wipers 3'
according to the invention had performances similar to those of the
traditional wipers 3 illustrated in FIG. 10, with respect to the
quality of the wiping out operation as well as to the permanency of
this quality of wiping during the entire life of the product.
ADVANTAGES OF THE INVENTION
[0062] The invention makes it possible to replace the manufacture
and the assembling of two molded distinct members, body 2 and wiper
3, by the manufacture of only one single-piece member 5
constituting body 2 and the so-called single-piece wiper 3', and
this applies to bodies 2 of any capacity. The single-piece members
5 may have an exterior diameter which ranges from 12 mm to 25 mm.
and a height ranging from 40 mm to 100 mm.
[0063] The invention therefore has important advantages of
economical nature since it concerns the industrial manufacture of
manufactured articles of large capacity and in large number.
TABLE-US-00001 LIST OF REFERENCE MARKS Dispenser applicator 1 Axial
direction 10 Body of 1 2 Threaded neck of 1 20 Lower extremity 200
Container of 2 21 Bottom of 21 210 Lateral skirt 211 Shoulder 212
Annular connecting zone of 3' and of 20 22 Wiper of 1 3
Single-piece wiper .sup. 3' Radial tongue 30 Truncated wall 31
Orifice 310 Base 311 Applicator of 1 4 Manual prehension means 40
Axial rod 41 Upper extremity 410 Lower extremity 411 Application
means 42 Single-piece member formed by 2 + 3' 5 First outline body
6 Container outline 60 Neck of 6 61 Tongue outline of 6 62 Inclined
tongue outline 62a Tongue outline downwardly turned around 62b
Second outline body 7 Molding device 8 Outline mold in two parts
80, 80a, 80b Orifice 800 Nucleus - punch 81 Peripheral crown 810
Central nucleus 811 Cavity 812 Part of 811 hollowed facing 810
.sup. 812' Axial duct 813 Finishing mold 82 Turnaround device 9
Turnaround punch .sup. 9' Annular member 90 Exterior crown 900
Interior crown 901 Lower extremity of 901 902 Central member 91
* * * * *