U.S. patent application number 10/595299 was filed with the patent office on 2007-03-08 for container.
Invention is credited to Hans Franzen.
Application Number | 20070051733 10/595299 |
Document ID | / |
Family ID | 34428336 |
Filed Date | 2007-03-08 |
United States Patent
Application |
20070051733 |
Kind Code |
A1 |
Franzen; Hans |
March 8, 2007 |
Container
Abstract
The invention relates to a container with a bottom shell (1) and
a cover shell (2), and means for interlocking the cover shell with
the bottom shell. It is proposed that the sustantially circular
opening rim (3) of the bottom shell have at least two first
sections (6, 6'', 6'', 6''') provided with radial extension and
each having at least one undercut (4, 4', 4'', 4'''), that the
cover shell (1) have at its opening rim (3') at least two second
sections (7, 7', 7'', 7''') corresponding to the first sections as
far as the radial extension is concerned, that the second sections
(7, 7', 7'', 7''') each have at least one undercut (5, 5', 5'',
5''') which corresponds to the undercut of the appertaining first
section (6, 6'', 6'', 6''') so that, during a rotation of bottom
shell (1) relative to cover shell (2), interlocking takes place in
the area of the undercuts of the first and the second appertaining
sections.
Inventors: |
Franzen; Hans; (Bullay,
DE) |
Correspondence
Address: |
BLACKWELL SANDERS PEPER MARTIN LLP
4801 Main Street
Suite 1000
KANSAS CITY
MO
64112
US
|
Family ID: |
34428336 |
Appl. No.: |
10/595299 |
Filed: |
October 7, 2004 |
PCT Filed: |
October 7, 2004 |
PCT NO: |
PCT/EP04/11196 |
371 Date: |
April 6, 2006 |
Current U.S.
Class: |
220/592.2 |
Current CPC
Class: |
B65D 2543/00962
20130101; B65D 2543/00509 20130101; B65D 43/0231 20130101; B65D
2543/00537 20130101; B65D 2543/00092 20130101; B65D 2543/00851
20130101; B65D 2543/00351 20130101; B65D 2543/00555 20130101; B65D
2543/00296 20130101 |
Class at
Publication: |
220/592.2 |
International
Class: |
B65D 81/38 20060101
B65D081/38 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 7, 2003 |
DE |
103 47 378.5 |
Claims
1. A container with a bottom shell and a cover shell, and with
means for interlocking the cover shell with the bottom shell,
comprising: a circular opening rim of bottom shell having at least
two first sections provided with a radial extension, each having at
least one undercut; an opening rim of cover shell having, at least
two second sections corresponding to the radial extension of the
first sections, each of the second sections having at least one
undercut, which corresponds to the undercut of the appertaining
first section so that, during a rotation of the bottom shell
relative to the cover shell, interlocking in the area of the
undercuts of the first and associated second sections takes
place.
2. A container according to claim 1, wherein the first section and
the corresponding second section, have, in a cross section, the
shape of the letter Z.
3. A container according to claim 1, wherein the first section and
the corresponding second section have, in a cross section, a
profile that comprises three radial extension areas, between which
at least one undercut and a vertical area is arranged.
4. A container according to claim 1 wherein the first section and
the second section have an undercut that is designed
thread-like.
5. A container according to claim 1, wherein the first section and
the second section have at least one thread cord.
6. A container according to claim 1 wherein the first section and
the second section have ramps that correspond to each other.
7. A container according to claim 6, wherein the ramps are designed
thread-like.
8. A container according to claim 1 wherein the first sections and
the second sections have a continually increasing radial
extension.
9. A container according to claim 1 wherein the first section and
the second section each have, in the area of their greatest radial
distance from the center of the opening rim concerned, a
marking.
10. A container according to claim 1 wherein the cover shell and/or
the bottom shell have at least one recess.
11. A container according to claim 1 wherein the lower area of
bottom shell and/or cover shell is designed polygonally.
12. A container according to claim 1 wherein bottom shell or cover
shell is equipped with a gasket in the lock area.
13. A container according to claim 1 wherein, in the locked state,
bottom shell and cover shell are situated on top of each other in
at least one rim area.
14. A container according to claim 1 wherein rim area of cover
shell is adjacent to the inside of the wall of bottom shell.
15. A container according to claim 1 wherein cover shell has a rim
indent which extends into the interior of bottom shell.
Description
[0001] The invention relates to a container with a bottom shell and
a cover shell and with means for interlocking the cover shell with
the bottom shell.
[0002] Such containers are used for storing and transporting all
kinds of small items, particularly including food products, as, for
instance, fresh cheeses, yoghurt, and similar, and, in the case of
the latter, also salad mixtures, which are provided with dressing
or to which only the dressing needs to be added.
[0003] Conventional containers, for example for yoghurt, with
locking or interlocking means that are as simple and as
economically priced as possible, are provided with a bottom shell
with corresponding cover shell, the cover shell having, in the area
of the opening rim, a so-called cover skirt with catch elements,
which reach under the shell rim. When opening the container, the
cover skirt is pulled over the opening rim. For this purpose, it is
necessary to reach under the cover skirt, to loosen the snap lock,
and to remove the- cover. This is not only unhandy but involves the
risk of the fingers coming into contact with the container
contents.
[0004] The invention is based on the technical problem of providing
a container, the interlocking means of which allow, on the one
hand, firm interlocking between bottom shell and cover shell and,
on the other hand, easy opening, and offer the possibility of even
holding the container overhead, without causing the interlock to be
loosened.
[0005] The solution of this technical problem is achieved by the
characteristics of the independent claim. Advantageous enhancements
are set forth by the dependent claims.
[0006] According to the invention, it became obvious that the
above-stated technical problem can be solved by a container with a
bottom shell and a cover shell and with means for interlocking the
cover shell with the bottom shell, wherein the substantially
circular opening rim of the bottom shell has at least two first
sections with radial extension, each having at least one undercut,
the cover shell having, at its opening rim, at least two second
sections which correspond to the first sections as far as the
radial extension is concerned, and each of the second sections
having at least one undercut which corresponds to the undercut of
the the appertaining first section so that, during a rotation of
the bottom shell relative to the cover shell, interlocking takes
place in the area of the undercuts of the first and associated
second sections.
[0007] As undercut, one considers most particularly a slant, which
allows positive locking with a corresponding counterpart.
Particularly, lugs that can be grasped from behind are not
undercuts according to the invention.
[0008] The radial extension denotes horizontal rim areas of the
shell and/or bottom shell, which extend radially outward or
inward.
[0009] The solution has the advantage that, even in the case of
major forces perpendicular to the plane spanning the opening rim,
the container remains tightly closed and that, in spite of the high
locking force, easy unlocking is possible.
[0010] Moreover, the lock has the advantage that in case of light,
solid items or of liquids in the container, nothing reaches the
outside during opening. If, for example, a salad with a salad
dressing is inside the container, there is no risk of salad
dressing spurting out when the container is opened, and getting the
user's hands dirty.
[0011] For closing and opening, bottom shell and cover shell are
rotated against each other. Depending on the embodiment of the
first and second sections, closing and opening can take place in
the same direction of rotation. It is, however, also possible to
close the container by a rotation to the right and opening it by
rotating to the left. The first sections are preferably formed by
radial increases in width.sup.1 of the bottom shell rim.
[0012] These radial increases in width can be designed in symmetry
or in asymmetry to a radial intersecting line. In the first case,
the opening rim has jaw-like increases in width, by means of which,
while retaining the direction of rotation, the container can be
closed and opened. These first sections alternate in a peripheral
direction with unwidened sections of the opening rim so that, when
setting on the cover shell, the corresponding second sections can
be inserted there and then, by twisting bottom shell and cover
shell, can be caused to engage with the first sections.
[0013] The perimeters of the first and second sections are
preferably equal in length. It is, however, also possible, for
example, to select for the first sections a larger perimeter than
for the second sections of the cover shell. In any case, the
perimeters of the unwidened sections of the opening rim of the
bottom shell must be appropriately adapted. .sup.1typo:
"Verbreitungen" (distributions, dispersions) instead of
"Verbreiterungen"
[0014] In the second case, as a result of the asymmetric sections,
in a top view, the opening rim has a sawtooth-like structure. The
corresponding second sections of the cover element form a
sawtooth-like structure in the opposite direction. In this form of
embodiment, closing of the container takes place by rotating bottom
shell and cover element in one direction and opening by rotating in
the opposite direction.
[0015] The undercuts of the first and second sections herein can,
in fact, also be designed corresponding to each other, but
different.
[0016] It is possible for the first and the corresponding second
section to show the shape of the letter Z in a cross section. This
simple profile provides an undercut in the section that is slanted
downward and toward the container interior. The areas that extend
outward and/or inward assure that, in the locked state, the
corresponding undercuts of the first and the second sections do not
become separated from each other because otherwise the locking
force would be reduced or lost.
[0017] Furthermore, it is possible for the first and the
corresponding second sections, in a radial cross section, to show a
profile that comprises three radial extension areas, between which
at least one undercut as well as, as the case may be, an area that
is substantially oriented perpendicular to the plane of the opening
rims, is arranged. As a result, the hold of the cover, compared to
a Z-profile, is over again improved.
[0018] In an advantageous enhancement, the first and the second
sections have an undercut that is designed thread-shaped. In this
case, the slope of the undercut of the first section relative to
perpendicular changes in the peripheral direction, initially
increases to cause the appertaining second section to become
additionally wedged, thereby increasing the locking force over
again. The undercut surface herein is subjected to torsion up to
the middle of the section along the peripheral direction, around a
peripheral line. After passing the middle, the slope of the
undercut decreases again, in order to allow opening of the
container. Hence, interlocking, both via an rotation to the left
and a rotation to the right is possible.
[0019] In addition to the above-stated designs of the undercuts, it
is possible for each of the first and the second sections to have
at least one thread cord. In this form of embodiment, in each case,
the undercut is formed by the thread cord.
[0020] A further design provides for the first and the second
sections to have ramps that correspond to each other, and the ramps
can be designed thread-shaped, too.
[0021] Each ramp has at least one ramp surface, which is sloped in
the peripheral direction. The ramp surfaces of the bottom shell
preferably extend from the opening rim downward. The ramp surfaces
of the cover shell are designed in a corresponding manner, with the
effect that, during closing of the container, the ramp surfaces
slide on each other, thereby causing bottom shell and cover shell
to move on top of each other.
[0022] For each first and second section, two or more ramp surfaces
can furthermore be combined.
[0023] The ramps offer the advantage that the axial extension of
the undercut surfaces of the first and second sections becomes
enlarged, thereby improving interlocking.
[0024] In order to offer the user an aid about when the container
is optimally closed, it is possible to provide for each of the
first and the second sections in the area of their greatest radial
distance from the center of the opening rim concerned to have a
marking. It suffices if at least one of the sections concerned is
provided with an appropriate marking to indicate to the user of the
container the optimal locked position by matching markings. The
marking can, for instance, be a color marking, a symbol, such as a
triangle or an arrow. In addition to this visual aid for optimal
interlocking of the container, the marking may also be selected in
the form of a notch, a depression, or designed in another manner,
thereby, in addition to the visual aid, providing the user a
tactile means for detecting the optimal locked position.
[0025] For carrying out the rotary movement by hand, the container
may be provided with rotation aids. Particularly for domed
containers with a smooth surface, the possibility suggests itself
of providing the cover shell and/or the bottom shell with a
plurality of recesses or bulges. These may be molded into the cover
shell and/or the bottom shell and be dimensionsed in such a way
that a finger tip can be placed therein. Thereby, the hold of the
fingers while turning is improved and the ease of use is
increased.
[0026] For the same purpose, moreover an embodiment can be
selected, in which the lower area of the bottom shell and/or the
cover shell is designed polygonally, e.g. in the form of a triangle
or a rhomb. In this case, the container also has a gripping aid,
which prevents the fingers from slipping off when using the
container.
[0027] Preferably, in the locking area, the bottom shell or the
cover shell is equipped with a gasket. In the rim area, the gasket
is preferably molded on. The gasket may be arranged situated inside
and is pressed inward during assembly of cover shell and bottom
shell.
[0028] According to a special embodiment, the gasket can be formed
by rim areas of cover shell and bottom shell, which are adjacent to
each other in the closed stated. In order to assure close adjacency
of the rim areas, the combination with a thread-like embodiment of
the undercuts is preferred because during unscrewing of the cover,
the rim areas are pressed against each other. This causes warping
which assures tight sealing.
[0029] Preferably, the rim area of the cover shell is adjacent to
the inside of the bottom shell. As a result, the sealing area is
transferred into the interior of the bottom shell which has the
advantage that no fluid can penetrate into the lock area, in
particular the area of the undercuts. After removing the cover
shell, this lock area is clean so that the user's fingers don't
become dirty when gripping and transporting the bottom shell. A
clean lock area has the additional advantage that the operation of
the locking elements is not impaired.
[0030] Preferably, the cover shell is provided with a rim indent,
which extends into the interior of the bottom shell. As a result,
it becomes possible to transfer the sealing area into the interior
of the bottom shell in a simple manner.
[0031] Bottom shell and cover element are preferably manufactured
of plastic material and by the deep-drawing process. Hereinafter,
the invention will be explained in greater detail based on the
figures showing in:
[0032] FIG. 1 A lateral top view of the interior of the bottom
shell;
[0033] FIG. 2a a lateral top view of the outside of cover shell
2;
[0034] FIG. 2b a lateral top view of the inside of the cover
shell,
[0035] FIG. 3 a closed container in a lateral view;
[0036] FIG. 3a-3d cross sections of the lock area in a radial
direction;
[0037] FIG. 4 form of embodiment of the lock area with ramps;
[0038] FIG. 5 radial cross section of a ramp of the bottom
shell;
[0039] FIG. 6 a lateral top view of the interior of the bottom
shell according to a further form of embodiment;
[0040] FIG. 7 a lateral top view of the outside of a cover shell 2
matching the bottom shell according to FIG. 6.
[0041] FIG. 1 shows a lateral top view of a bottom shell 1 with a
view into the interior of the bottom shell. Circular opening rim 3
has a circular outward oriented horizontal subarea 3a. Above and on
the plane spanning subarea 3a of opening rim 3, a substantially
cylindrical rise 15 is located. Rise 15 has a total of four first
sections 6, 6', 6'', 6''' with radial extension, the radius of
curvature of which is substantially smaller than the circular
opening radius. These widened sections 6, 6', 6'', 6''' are
symmetrically designed. Sections 6, 6', 6'', 6''' alternate with
areas 6a that are not radially widened and extend over a certain
peripheral area of the opening rim.
[0042] In deviation from the above-described design of opening rim
3 of bottom shell 1, additionally, a design is furthermore
possible, in which opening rim 3 does not have a flat radially
oriented horizontal subarea 3a but, at wall 16 of bottom shell 1,
passes directly into outer perimeter wall 15a of rise 15 and the
first sections 6, 6', 6'', 6''', e.g. via a molding of the sections
6, 6', 6'', 6''' from the outside onto the container wall.
[0043] The perimeter of the sections 6a is equal to or greater than
the perimeter of the sections 6, 6', 6'', 6'''.
[0044] Each of the four first sections 6, 6', 6'', 6''' shown in
FIG. 1 has, on outer perimeter wall 15a, an undercutting or an
undercut 4, 4', 4'', 4''' respectively, of which, because of the
perspective of the illustration, only two can be seen, namely the
undercuts 4 and 4''' of the first sections 6 and 6''' . Undercut 4
is formed by a slope of outer perimeter wall 15a of sections 6, 6',
6'', 6'''. The simplest geometry exists whenever each of the
undercuttings extends over the entire perimeter of sections 6, 6',
6'', 6'''.
[0045] Optionally, at least one of the first sections 6, 6', 6'',
6''' has a marking 12. Herein, bottom shell 1 shows four markings
12, 12', 12'', 12''' in the form of a notch. The notches 12, 12',
12'', 12''', designed in round form, are centrally located in
sloped wall 15a, which forms the undercuttings 4, 4', 4'',
4'''.
[0046] Bottom shell 1 has, as a rule, any desired shape below the
substantially circular opening rim 3. In FIG. 1, wall 16 below
opening rim 3 is designed in cylinder-symmetrical form. This
cylinder-symmetrical wall 16 is adjoined by a bulge 17, which is
designed polygonally. In FIG. 1, this bulge 17 is hexagonal,
projects outward, is molded onto bottom shell 1, and when holding
bottom shell 1 from the rear, is used for better retaining the hold
by the hand while carrying out the rotary movement. The hexagonally
designed area 18a is adjoined by base 18b and surface 19 which is
slightly raised against base 18b.
[0047] FIG. 2a shows a cover shell 2 from above in a lateral
downward view. The view is oriented to the outside of cover shell
2.
[0048] Cover shell 2 also has a substantially circular opening rim
3', which is flat and outward oriented. The radius of this opening
rim 3' corresponds to that of opening rim 3 of bottom shell 1.
Corresponding to the first sections 6, 6', 6'', 6''' of bottom
shell 1, cover shell 2 has second sections 7, 7', 7'', 7''' with a
slightly greater radial extension than.sup.2 the first sections 6,
6', 6'', 6''' of bottom shell 1, which alternate in the peripheral
direction with the radially outward projecting sections 7a.
Insofar, the second sections 7, 7', 7'', 7''' correspond to the
first sections 6, 6', 6'', 6''' and the areas 6a to the sections
7a. The perimeter of the second sections 7, 7', 7'', 7''' herein
correspond to the perimeter of the first sections 6, 6', 6'', 6'''.
Between the sections 7, 7', 7'', 7''' and the vaulted cover wall,
there is an annular rim indent 2a, which extends into the interior
of bottom shell 1. .sup.2Grammatical error here; German "wie" would
actually translate to "like" (in the meaning of "just like") but
since it is a well-known German regional grammatical error, we
ignored it in English
[0049] In the upper central area of cover shell 2, recesses 13 can
be recognized pointing into the container interior. They allow
positioning the fingers of the user in the recesses 13 and prevent
slipping off while closing or opening the container.
[0050] FIG. 2b shows cover shell 2 from above in a lateral downward
view, this time the view being oriented into the interior. The
second, inward projecting sections 7, 7', 7'', 7''' of cover shell
2 with appertaining undercuts 5, 5', 5'', 5''' can be recognized,
as a result of the perspective, only two of them, namely 5 and
5''', of the second sections 7 and 7''' being visible. In this
illustration, the undercuts 5, 5', 5'', 5''' of cover shell 2 are
formed by a constant slope of inner perimeter wall 15b.
[0051] The first and second sections 6, 6', 6'', 6''' and 7, 7',
7'', 7''' provide, in the form of the undercuts 4 and 5, conical
surfaces which interlock during a rotary movement of bottom shell 1
relative to cover shell 2 by positive locking. The markings, for
example in the form of a colored marking or of projections 12a,
12a', 12a'', 12a''' as in FIG. 2b indicate the optimal position for
firm locking.
[0052] While a total of four markings 12 are provided in the bottom
shell, it suffices if, in deviation from FIG. 2b, only one marking
12a is provided in cover shell 2.
[0053] In FIG. 2b, gasket 14 is additionally drawn in on the inner
rim of opening rim 3.
[0054] According to FIG. 3, a container with cover shell 2 and
bottom shell 1 can be recognized, the lock area of which is rimmed
on the right outside via a circle. This marked area is presented in
FIGS. 3a-d enlarged on the bottom in a cross section.
[0055] In FIGS. 3a-d, rim indent 2a of cover 2 can be seen, being
molded in in annular form. Vaulted cover wall 2b extends into the
interior of bottom shell 1 and passes into an ascending rim section
14b, which is adapted to the contour of rim section 14a of bottom
shell 1. When setting and/or screwing cover shell 2 onto bottom
shell 1, the rim sections 14a, 14b are pressed against each other
so that a gasket 14 forms. Hence, liquid in the interior of the
container cannot get as far as into the lock area of the undercuts
4, 5.
[0056] According to FIG. 3a, cover shell 2 may have, in its outer
area, a first section with Z-shaped profilation and insofar
posseses an undercut 5, which is formed by a slanted surface.
Bottom shell 1 has, corresponding thereto, a second section with
Z-shaped profile and also an appertaining undercutting 4. Hence,
cover and bottom shell have two radial extensions or rim areas 8,
8''. As a result of the pressing pressure exerted when screwing
together cover and bottom shell onto the rim sections 14a, b, area
8 can stand up, which is drawn by the dashed line in FIG. 3A in
exaggerated form. As a result, rim section 13b is additionally
pulled inward and against rim section 14a. The connection between
cover 2 and bottom shell 1 then takes place via positive
locking.
[0057] In an additional embodiment according to FIG. 3b, the first
and the corresponding second sections in the lateral view show a
profile, which comprises three radial extension areas 8, 8', 8'',
between which at least one undercut 4 or 5 as well as, as the case
may be, a substantially vertically running area 9 is arranged,
compare FIG. 3b.
[0058] In the form of embodiment shown in FIG. 3c, the undercut
surfaces shown in FIG. 3b are formed by vertical surfaces. The
undercuts 4, 5 are created by setoff 30, which is also present in
FIG. 3b.
[0059] An additional embodiment provides for the first and the
second sections to have thread cords 10, 10' that correspond to
each other.
[0060] Each of the undercut surfaces 4 and 5 can represent a
substantially vertically running surface while not being conically
designed themselves, compare FIG. 3d. This surface has thread cords
10, 10', which, in turn, have an undercut.
[0061] In an additional advantageous enhancement (FIG. 4), the
first and the second sections have ramps 11 and/or 11' that
correspond to each other. Ramp 11 of cover shell 2 has a triangular
lateral wall 22 with ramp surfaces 24 and 24'. Corresponding
thereto, the bottom shell has a triangular lateral wall 23 with
ramp surfaces 25 and 25'. At the seam location of the ramp surfaces
24 and 24' and/or 25 and 25', a bulge 20' and/or a depression 20
corresponding thereto is located. During closing, bulge 20' snaps
into depression 20, and the ramp surfaces 24, 24', 25, 25'
concerned of bottom shell 1 and cover 2 are in surface contact with
each other. Via the surface contact of the sloped surfaces of the
undercuts of both ramps which project into the ramps 11, 11',
locking is caused. The snapping of bulge 20' into depression 20
herein represents a tactile aid optional to the ramp for
determining the optimal locked position.
[0062] Via lateral wall 23, undercut 4 and appertaining bottom wall
28, a channel is defined (see FIG. 5), into which the appertaining
ramp 11 of cover shell 2 can drive. As a result of this solution,
undercut 4 of bottom shell 1 is lengthened downward, thereby
improving the positive lock. Vaulting 21 at the bottom of the
channel represents the interlocking element of the container
shell.
[0063] FIGS. 6 and 7 show a further embodiment of the container
according to the invention. FIG. 6 shows a bottom shell 1 with four
first sections 6, 6', 6'', 6''', which completely encompass opening
rim 3 of bottom shell 1 without any gap. Every first section 6, 6',
6'', 6''' has a continually increasing radial extension outward.
After reaching the maximum radial extension, an additional first
section 6, 6', 6'', 6''' starts with an initially small and
subsequently increasing radial extension. This results in the
formation of corners 26, 26', 26'', 26''' and, in a top view, a
sawtooth-like embodiment. Every section 6, 6', 6'', 6''' has, over
the entire perimeter extension, an undercut 4, 4', 4'', 4'''.
[0064] FIG. 7 shows cover shell 2, corresponding to FIG. 6, with
corresponding second sections 7, 7', 7'', 7'''. While for the first
sections 6, 6', 6'', 6''' according to FIG. 6, the radial extension
increases clockwise, it increases counter-clockwise for cover shell
2, compare FIG. 7. In the case of cover shell, the formation of
corners 27, 27', 27'', 27''' and a corresponding sawtooth structure
occurs, too. Thus, during closing, a positive lock occurs in the
area of the first sections 6, 6', 6'', 6''' of bottom shell 1,
namely in the area of the greatest radial extension.
[0065] In this form of embodiment, markings 12,12', 12'', 12''' are
also present in the form of notches or chases and inward oriented
projections 12a, 12a', 12a'', 12a'''. The cover shell has recesses
13.
REFERENCE MARK LIST
[0066] 1 Bottom Shell [0067] 2 Cover Shell [0068] 2a Rim Indent
[0069] 2b Cover Wall [0070] 3 Opening Rim of Bottom Shell [0071] 3a
Subarea of Opening Rim 3 [0072] 3' Opening Rim of Cover Shell
[0073] 4, 4', 4'', 4''' Undercut of Bottom Shell [0074] 5,5', 5'',
5''' Undercut of Cover Shell [0075] 6, 6', 6'', 6''' First Section
(of Bottom Shell) [0076] 6a Unwidened Area [0077] 7, 7', 7'', 7'''
Second Section (of Cover Shell) [0078] 7a Radially Outward
Projecting Section [0079] 8, 8', 8'' Radial Extension Area [0080] 9
Vertical Area [0081] 10, 10' Thread Cord [0082] 11 Ramp of Cover
Shell [0083] 11' Ramp of Bottom Shell [0084] 12,12',12'',12'''
Marking [0085] 12a,12a',12a'',12a''' Projection [0086] 13 Recess
[0087] 14 Gasket [0088] 14a Rim Area [0089] 13b Rim Area [0090] 15
Cylindrical Rise [0091] 15a Outer Perimeter Wall [0092] 15b Inner
Perimeter Wall [0093] 16 Wall [0094] 17 Bulge [0095] 18a Hexagonal
Area [0096] 18b Base [0097] 19 Raised Surface [0098] 20 Depression
[0099] 20' Bulge [0100] 21 Vaulting [0101] 22 Lateral Wall of Cover
Shell [0102] 23 Lateral Wall of Bottom Shell [0103] 24,24' Ramp
Surface of Cover Shell [0104] 25,25' Ramp Surface of Bottom Shell
[0105] 26,26',26'',26''' Corner of Bottom Shell [0106] 27 Corner of
Cover Shell [0107] 28 Bottom Wall [0108] 30 Setoff
* * * * *