AU2123695A - Creation of Inventions and Patents with Artificial Intelligence

AU2123695A – Membrane piercing closure and spout assembly
– Google Patents

AU2123695A – Membrane piercing closure and spout assembly
– Google Patents
Membrane piercing closure and spout assembly

Info

Publication number
AU2123695A

AU2123695A
AU21236/95A
AU2123695A
AU2123695A
AU 2123695 A
AU2123695 A
AU 2123695A
AU 21236/95 A
AU21236/95 A
AU 21236/95A
AU 2123695 A
AU2123695 A
AU 2123695A
AU 2123695 A
AU2123695 A
AU 2123695A
Authority
AU
Australia
Prior art keywords
cap
piercing
closure
fitment
spout member
Prior art date
1994-03-16
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Abandoned

Application number
AU21236/95A
Inventor
Thomas A. Frazier
Michel Maietta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

West Pharmaceutical Services Inc

Original Assignee
West Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1994-03-16
Filing date
1995-03-16
Publication date
1995-10-03

1995-03-16
Application filed by West Co Inc
filed
Critical
West Co Inc

1995-10-03
Publication of AU2123695A
publication
Critical
patent/AU2123695A/en

Status
Abandoned
legal-status
Critical
Current

Links

Espacenet

Global Dossier

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Classifications

B—PERFORMING OPERATIONS; TRANSPORTING

B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL

B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES

B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper

B65D5/42—Details of containers or of foldable or erectable container blanks

B65D5/72—Contents-dispensing means

B65D5/74—Spouts

B65D5/746—Spouts formed separately from the container

B65D5/747—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall

B65D5/748—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall a major part of the container wall or membrane being left inside the container after the opening

B—PERFORMING OPERATIONS; TRANSPORTING

B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL

B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags

B65D77/04—Articles or materials enclosed in two or more containers disposed one within another

B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers

B65D77/062—Flexible containers disposed within polygonal containers formed by folding a carton blank

B65D77/065—Spouts, pouring necks or discharging tubes fixed to or integral with the flexible container

B65D77/067—Spouts, pouring necks or discharging tubes fixed to or integral with the flexible container combined with a valve, a tap or a piercer

Description

MEMBRANE PIERCING CLOSURE AND SPOUT ASSEMBLY
TECHNICAL FIELD
The present invention relates to a container-closure assembly incorporating a pour spout and frangible closure seal.

BACKGROUND ART
Container-closure assemblies of the generally type described above are not new per se. Closures of this general type are shown in the patents listed below.
BOWES ET AL.
BICAMERAL CONTAINER
Patent No. 3, 156,369
Issued: November 10, 1964
HOMMA
CONTAINER WITH PLURAL POUR SPOUTS AND FRANGIBLE CLOSURE
Patent No. 3,407,976
Issued: Oct. 20, 1968
O’CONNOR ET AL.
CONTAINER HAVING SAFETY CLOSURE
Patent No. 3,841,513
Issued: Oct. 15, 1974
GEAVES
CONTAINER CLOSURE METHOD
Patent No. 4,747,501
Issued: May 31, 1988

DISCLOSURE OF THE INVENTION
The present invention provides a novel fitment enclosed within a spout which may be actuated to provide a discharge opening in a membrane seal on an aseptic package. More specifically, the assembly comprises a closure cap having spiral threads which mate with the external spiral threads on a spout member mounts over a membrane type seal in the discharge end of the package. A piercing fitment having a plurality of piercing teeth at its internal terminal end threadedly engages interiorly of the spout member and to be selectively actuatable to pierce the membrane upon operation of the closure cap in a direction to remove it from the container. To this end, the cap includes a series of driving posts which depend from the interior of the top of the cap and engage circumferentially spaced axially extending grooves in the piercing fitment. The piercing fitment is normally disposed within the spout member so that the teeth extending from inner end thereof are spaced above the membrane in the container. Accordingly, when the closure cap is rotated in the direction to remove it from the pouring spout, the posts engage in the splines of the piercing fitment thereby to rotate the piercing fitment in an opposite direction so that it is actuated downwardly against the membrane. It has been found, in a cycle of operation, the membrane is severed save for a connecting hinge in the manner shown in Fig. 13.

BRIEF DESCRIPTION OF THE DRAWINGS
These and other objects of the present invention and the various features and details of the operation and construction thereof are hereinafter more fully set forth with reference to the accompanying drawings, wherein: Fig. 1 is a front elevational view of a typical aseptic paper package for containing liquid products such as milk and a novel membrane piercing closure and spout assembly in accordance with the present invention;
Fig. 2 is a plan view of the aseptic paper package and closure assembly shown in Fig. 1;
Fig. 3 is a right hand side elevational view of the aseptic paper package and closure assembly shown in Fig. 1;
Fig. 4 is an enlarged sectional view taken on the lines 4-4 of Fig. 1 showing the membrane piercing closure and spout assembly fixedly attached to the top of the aseptic package and overlying the membrane sealed port of the package;
Fig. 5 is a sectional plan view taken on the lines 5-5 of Fig. 4 showing additional details of the closure assembly;

Fig. 6 is a sectional elevational view at a slightly reduced scale than Figs. 4 and 5 of the closure member of the assembly;
Fig. 7 is a bottom plan view of the closure member as viewed along the lines 7-7 of Fig. 6; Fig. 8 is a sectional elevational view at the same scale as Fig. 6 of the spout member of the assembly;
Fig. 9 is a bottom plan view of the spout member is viewed along the lines 9-9 of Fig. 8;
Fig. 10 is a sectional elevation view of the piercing fitment member at the same scale as in Figs. 6-9; Fig. 11 is a bottom plan view of the piercing fitment member as viewed along the lines
11-11 of Fig. 10;
Fig. 12 is a 360° development of a modified piercing fitment having piercing and cutting teeth of less length and four (4) equally spaced gaps in the tooth array;

Fig. 13 is an enlarged sectional elevational view similar to Fig. 4 but showing the closure member having been rotated in a counterclockwise direction through approximate 450° for the closure moving upward and away from the spout flange;
Fig. 14 is a fragmentary sectional plan view taken on the lines 14-14 of Fig. 13 showing the four (4) actuating posts integrally attached to the closure member in driving contact with the splined ratchets on the inside circumference of the piercing fitment;
Figs. 15 – 18 inclusive are views showing a modified embodiment of the present invention; and
Figs. 19 – 22 inclusive show still another modified embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION
Referring now to the drawings and particularly to Figs. 1-3 there is illustrated a typical package of the type to which the piercing closure and spout assembly of the present invention has particular application. The container is broadly designated by the numeral 10 and is of generally box-liked shape having rectangular front and rear panels 12 and 14 respectively and side panels 16 and 18 spanning the front and rear panels connected thereto along vertical bend line 19. The sides and bottom have overlapping sealed seams so that the package illustrated is of generally box-like form and is constructed in a manner to provide an aseptic container for liquid products such as milk where the shelf life can be increased considerably since they do not require refrigeration. The package is of a well known construction and is made primarily of cardboard having a foil inner liner and an outer coating which makes the cardboard impervious to moisture.
The top panel 21 has a cutout 22 exposing the foil which functions as a diaphragm 24 in a manner to be described hereafter. As best illustrated in Figs. 4 and 5 the piercing closure and spout assembly of the present invention is mounted over the diaphragm 24 in the manner illustrated and may be attached thereto by an adhesive such as glue.
Referring now to the drawings, and particularly, to Figs. 6-12 inclusive the piercing closure and spout assembly in accordance with the present invention is generally designated by the numeral 30. The basic components of the assembly comprise a closure

cap 32, a spout member 34 and a piercing fitment 36 which interengage and nest in the manner shown in Fig. 4 and are actuatable relative to one another between the nested position (Fig. 4) and an actuated position as shown in Fig. 13 to produce a discharge opening O in the diaphragm 24 when desired to discharge contents of the container. The closure cap 32, as illustrated, includes a disc like top 40, a depending side wall or skirt 42 having an internal spiral thread configuration 43 of predetermined pitch P and predetermined height H. In the present instance, the threads 43 extend only to a predetermined depth H so that the closure cap can be fully removed in about one and a quarter turns of the cap relative to the spout member 34. The closure cap 32 includes a tamper evident band or ring 44 connected to the lower terminal edge of the side wall 42 by plurality of circumferentially spaced, fracturable bridges 46. The tamper evident band 44 has a series of circumferentially spaced radially inwardly projecting anti-rotation lugs 48 preventing rotation of the closure cap 32 in a direction to remove it when the assembly is in the nested position shown in Fig. 4. Thus, attempts to remove the closure cap 32 produce breaking of the bridges 46 and visual indica that the cap has been once removed.
More specifically, the tamper band 44 is of a larger diameter D1 than the diameter D2 of side wall 42 and when the bridges are fractured is displaced axially away from the wall skirt 42 to show the fractured bridges 46 and produce a gap which are indicia to the user that the closure cap has once been opened. This may be important for certain types of products which either have a limited shelf life or will contaminate when exposed to the ambient environment, such as milk.

The closure cap 32 also includes an array of circumferentially spaced driving posts 50 depending from the top 40. See Figs 7 and 14. Each driving post 50 has an exterior face 52 having lead and trailing shoulders 54 and 56. The leading and trailing edges 54, 56 of the driving post 50 effect displacement of the piercing fitment 36 to penetrate the diaphragm 24 and form the discharge opening during activation of the piercing fitment 36 from the nested position shown in Fig. 4 to the extended and fully actuated position shown in Fig. 13. The driving posts 50 also cooperate with piercing fitment 36 to retract it into the spout member 34 when reapplying the closure cap 32 to the spout member 34. Indica in the form of an arrow 58 is formed on the top face of the closure cap 32 to indicate direction of rotation of the cap to remove it.
The spout member 34 comprises an elongated tubular or cylindrical body 60 having an internal bore 62 with internal spiral threads 64 of a predetermined pitch P1 and predetermined height H1. The spout member also has a spiral thread 66 formed on the outer peripheral surface of the body portion 60 of a predetermined pitch P2 and predetermined height H2. The body portion of the spout member terminates in an enlarged shoulder section 70 at its inner terminal end which has a series of circumferentially spaced radially outwardly directed lugs 72. The lugs 72 cooperate with the anti-rotation lugs 48 of the tamper evident band. The lugs 72 are angled to permit the lugs of the tamper evident ring to ratchet over the lugs on the spout member shoulder during application of the closure cap and resist rotation in the opposite direction to effect fracture of the bridges in the manner described in more detail below.

The spout member has a circumferentially extending flange 74 at its lower end having a recessed lower face or cavity 76 for retaining adhesive for applying the spout member to the container in a manner described more specifically hereafter.
The piercing fitment 36 has a tab or lug 37 defining a limit stop L1 which projects radially outwardly at the lower edge of the piercing fitment 36 in a plane A-A through the base B of the teeth 39. The limit stop L1 is positioned to engage the bottom of the internal spiral thread 64 on the spout member 34. The limit stop L1 and shoulder T of the spiral threads and work together in the following manner. The parts comprising the cap spout member 34 and piercing fitment 36 are preassembled before being applied to the membrane or container walls surrounding the membrane by first threading the piercing fitment 36 into the bottom end of the spout member 34 in a clockwise direction until the limit stop L1 abuts the shoulder T of the spiral thread 64. The piercing fitment 36 and spout member 34 are then in the relative position shown in Fig. 4. The closure cap 32 is then positioned over the open end so that the spaces between the posts 50 are generally aligned with the ramp faced splines 38 of the piercing fitment 36. In this position, the closure cap 32 is rotated in a clockwise direction as shown in Fig. 5 so that it is fully assembled to the spout member 34 as shown in Fig. 4. It is noted that during rotation of the cap 32 in this manner, the edge 54 of the post 50 engage the ramp R faced splines 38 on the piercing fitment and the piercing fitment is restrained from rotation by engagement of the limit stop L against the shoulder T and that the post 50 flex inwardly as they pass over the ramp faced splines 38 of the piercing fitment allowing the closure cap 32 to be fully seated on

the spout member 34. The closure cap 32 is then threaded to its fully seated position shown in Fig. 4. The assembly is now ready to apply to the top of the container so that the parts are in the position shown in Fig. 4. In the present instance, the extended flange at the lower end of the spout member is glued to the top of the container surrounding the diaphragm. Now when the closure cap is rotated in a counterclockwise direction to remove it, the opposing shoulder 54 of each of the posts 50 rotates to a position where they engage the shoulder S of the ramp R whereby upon continued rotation of cap in this direction, the cap is actuated axially upwardly and the piercing fitment 36 is driven axially downwardly and during this activation, the diaphragm is severed in the manner shown in Fig. 13 producing a hinge H by reason of the bunching of the material at the hinge.
Consider now the operation of the closure and fitment of the present invention. The parts are initially in the relative positions shown in Fig. 4, wherein the piercing element 36 nested within the pouring spout 34 and the piercing teeth 39 are spaced above the diaphragm 24 over the discharge opening 22 in the package 10. The bridges 46 connecting the cap portion of the closure 52 to the tamper evident ring 44 are intact and provide visual indica that the diaphragm seal has not been tampered with. Now when it is desired to activate the system, the cap 32 is rotated in a counterclockwise direction. During initial rotation of the cap in a counterclockwise direction, the anti-rotation lugs 48 engage the radial shoulder 72 of the base of the pouring spout 34 whereby continued rotation of the cap fractures the bridges 46 and permits removal of the cap. As the cap or closure 32 rotates counterclockwise and is displaced upwardly from the spout flange 74

in the manner shown in Fig. 13, the piercing fitment 36 also rotates in a counterclockwise direction and by reason of the post 50 interengaging with the shoulder of the ramp faced spline 38 the piercing fitment 36 is actuated axially downwardly in the opposite direction of the cap 32. In the present instance since the pitch of the cap threads 43 and the piercing fitment threads are the same, the vertical displacement distance D traveled by the cap upwardly is equal to the vertical displacement D1 of the piercing element in the opposite direction. As the piercing fitment rotates and moves axially downwardly, the sharp edges of the piercing teeth penetrate the membrane and cut the membrane in a circular path. It is noted, that the membrane material tends to bunch at a flap location F and this provides a hinge holding the membrane attached to the container at the hinged location. The cap can be completely removed and at the contents of the package discharge through the discharge opening. It is noted that after use, the cap can be reapplied to the package spout and rotated clockwise through approximately 450° to reposition the closure and the piercing fitment the closed position in Fig. 4. It is noted that assembly of the cap 32 during clockwise rotation thereof, posts 50 flexed inwardly past ramp faced splines 38 and when the cap 32 is rotated in a counterclockwise direction to remove it, the shoulder 56 of post 50 engages shoulder S of ramp faced spline 38.
There shown in Fig. 12 a modified tooth array in accordance with the present invention. In this instance, the tooth array includes a plurality teeth 39′ and circumferentially spaced gaps 35 separating the teeth array into groups.

There is illustrated in Fig.15-18 a modified version of a cap and piercing fitment in accordance with the present invention. The closure cap 132 is of generally cup like form having a disc like top 140, a depending peripherally circumferentially extending sidewall
142 having an internal spiral thread configuration 143 of a predetermined pitch P and a predetermined height H. Similar to the previous described embodiments, the threads 143 extend only to a predetermined depth H so that the closure cap can be fully removed in about one and a quarter (1 1/4) turns of the cap relative to the spout member 34. The closures cap also includes a tamper evident band or ring 144 connected by a series of fracturable bridges 146. In the present instance the cap includes a generally rectangular post 150 depending from the inside of the interface of the top wall which is illustrated extends slightly below the lower terminal edge of a plane B-B through the juncture of the cap and fracturable bridge. The piercing fitment is of a similar configuration of that described in connection with the preferred embodiment. Thus, the fitment includes a piercing fitment 136 which is generally similar to the previously described embodiment and has external screw threads on the outer periphery of the side wall which mesh with the internal threads of the spout member in much the same manner as described above. A series of circumferentially extending teeth depend from the lower terminal edge of the side wall. In the present instance the upper end of the piercing fitment has a radially inwardly directed flange with two diametrically opposed notches and cut outs adapted to receive the projection 150 which depends from the inner face of the top 140 to activate the system in much the same manner as described above.

The embodiment shown in Figs. 19-22 inclusive is generally similar to that shown in Fig.
15-18 and accordingly, elements similar to those of the principal embodiment have been assigned the same numbers in the 200 series. Thus, the cap 232, spout member 234 and piercing fitment 236 interengage and function in the same manner as described previously. However, in the present instance instead of a rectangular 150 projection from the inner face of the top 140, there are two pin like projections which depend from the top which are spaced apart a predetermined distance D4. These pins engage with portions of the piercing fitment to produce the opening and closing action described above. Thus, piercing fitment has an X-shaped top defining four (4) open quadrants. The pins on the cap are designed to engage in diametrically opposed quadrant openings in the top of the piercing fitment.
Even though particular embodiments of the present invention have been illustrated and described herein, it is not intended to limit the invention and changes and modifications may be made therein within the scope of the following claims.

Claims (3)

CLAIMS What is claimed is:

1. A closure assembly for piercing a diaphragm over a discharge opening in a container comprising:
a cap of cup-like form having internal thread means;
a generally tubular spout member mounted on the container surrounding said diaphragm and a piercing fitment disposed interiorly of said spout member having a series of depending teeth arranged in a circular array and cooperating interengaging means between the spout member and piercing fitment and cap whereby rotational movement of the cap in one direction effects downward displacement of said piercing fitment to pierce said diaphragm.

2. A closure assembly as claimed in claim 1 , including cooperating spiral thread means between said spout member and said piercing fitment.

3. A closure assembly as claimed in claim 1, including a series of circumferentially spaced posts depending from the top of the closure cap having shoulder means cooperatively associated with splines on the interior wall of the piercing fitment whereby during rotation of the closure cap in one direction the shoulder means engages the splines to rotate the pouring fitment and displace it axially downwardly and whereby rotation in the opposite direction effects ratcheting of the shoulder means over the ramp surfaces of the splines.

AU21236/95A
1994-03-16
1995-03-16
Membrane piercing closure and spout assembly

Abandoned

AU2123695A
(en)

Applications Claiming Priority (3)

Application Number
Priority Date
Filing Date
Title

US08/214,799

US5482176A
(en)

1994-03-16
1994-03-16
Membrane piercing closure and spout assembly

US214799

1994-03-16

PCT/US1995/003430

WO1995025042A1
(en)

1994-03-16
1995-03-16
Membrane piercing closure and spout assembly

Publications (1)

Publication Number
Publication Date

AU2123695A
true

AU2123695A
(en)

1995-10-03

Family
ID=22800450
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

AU21236/95A
Abandoned

AU2123695A
(en)

1994-03-16
1995-03-16
Membrane piercing closure and spout assembly

Country Status (11)

Country
Link

US
(1)

US5482176A
(en)

EP
(1)

EP0750566A4
(en)

JP
(1)

JPH09510422A
(en)

CN
(1)

CN1143936A
(en)

AU
(1)

AU2123695A
(en)

BR
(1)

BR9507068A
(en)

CA
(1)

CA2185563A1
(en)

CZ
(1)

CZ270796A3
(en)

FI
(1)

FI963637A
(en)

NZ
(1)

NZ283239A
(en)

WO
(1)

WO1995025042A1
(en)

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AU
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CA
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JP
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CN
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patent/CN1143936A/en
active
Pending

1995-03-16
CZ
CZ962707A
patent/CZ270796A3/en
unknown

1996

1996-09-13
FI
FI963637A
patent/FI963637A/en
unknown

Also Published As

Publication number
Publication date

WO1995025042A1
(en)

1995-09-21

US5482176A
(en)

1996-01-09

FI963637A0
(en)

1996-09-13

CN1143936A
(en)

1997-02-26

BR9507068A
(en)

1997-09-30

CA2185563A1
(en)

1995-09-21

EP0750566A1
(en)

1997-01-02

EP0750566A4
(en)

1999-10-20

JPH09510422A
(en)

1997-10-21

CZ270796A3
(en)

1998-03-18

NZ283239A
(en)

1997-03-24

FI963637A
(en)

1996-11-07

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