US3613966A - Nestable pouring spout with wall-supporting cap - Google Patents

Nestable pouring spout with wall-supporting cap Download PDF

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US3613966A
US3613966A US3613966DA US3613966A US 3613966 A US3613966 A US 3613966A US 3613966D A US3613966D A US 3613966DA US 3613966 A US3613966 A US 3613966A
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portion
body portion
cap
body
neck
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Kenneth L Summers
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Rieke Corp
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Rieke Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D47/00Closures with filling and discharging, or with discharging, devices
    • B65D47/04Closures with discharging devices other than pumps
    • B65D47/06Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/061Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages with telescopic, retractable or reversible spouts, tubes or nozzles
    • B65D47/063Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages with telescopic, retractable or reversible spouts, tubes or nozzles with flexible parts

Abstract

A nestable pouring spout has a flexible wall with a portion reversible in curvature upon extension of the spout, and which is circumferentially supported by a portion of a spout-closing cap when the spout is in nested position.

Description

United States Patent Inventor Kenneth L. Summers Hudson, 1nd.

Appl, No. 817,007

Filed Apr. 17, 1969 Patented Oct. 19, 197 1 Assignee Rieke Corporation Auburn, Ind.

NESTABLE POURING SPOUT WITH WALL- SUPPORTING CAP 9 Claims, 6 Drawing Figs.

US. Cl 222/529, 220/85 SP Int. Cl B67d 3/00, B67d 5/06 Field of Search 222/527,

[56] References Cited UNITED STATES PATENTS 2,051,940 8/1936 Miles 220/94 A 2,895,654 7/1959 Rieke 222/529 2,898,014 8/1959 Borah.... 222/529 3,075,676 1/1963 Borah 222/527 3,199,750 8/1965 Livingstone 222/529 3,250,428 5/1966 Rieke 220/60 3,502,246 3/1970 Kelbch 222/529 X FOREIGN PATENTS 101,042 12/1962 Norway 220/85 SP Primary ExaminerRaphael H. Schwartz Att0rneyWo0dard, Weikart, Emhardt & Naughton ABSTRACT: A nestable pouring spout has a flexible wall with a portion reversible in curvature upon extension of the spout, and which is circumferentially supported by a portion of a spout-closing cap when the spout is in nested position.

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SHEET 10F 2 Fig. 2.

Fig. l.

PRIOR 'ART PRIOR ART Fig. 3.

INVENTOR KENNETH SUMMEZS BY \QODAMA ,MBMMM mrm SHEET 2 OF 2 PAIENIEBum .1 9 19?! INVENTOR KENNETH L. Suvwmas \dmm mm C mhmlti M B 141. for: s

NESTABLE POURING SPOUT WITI-I'WALL- SUPPORTING CAP BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates generally to containers, and more particularly to pouring spouts therefor of highly flexible material for convenient nesting and extension thereof.

Description of the Prior Art A variety of nestable and extendable flexible pouring spout assemblies can be found in the prior art. Examples appear in the following U.S. Pat. Nos: 2,561,596 to Irving H. Rieke, July 24, 1951; 2,565,699 to Irvin H. Rieke, Aug. 28, 1951; 2,661,128 to Irvin H. Rieke, Dec. 1, 1953; 2,895,654 to Glenn T. Rieke, July 21, 1959; 3,250,428 toGlenn T. Rieke, May 10, 1966.

In addition to the above group, there are patents on retractable container spouts U.S. Pat. Nos. 2,804,242; 3,075,676; and 3,093,273 issued to John E. Borah.

There are many instances when containers of fluid are subjected to temperature changes resulting in pressure changes internally. Increases of pressure, if sufficiently great, can cause deformation of the more flexible portion of a flexible spout, and with some materials the possibility of stress cracking arises. The present invention is directed toward overcoming such problems.

SUMMARY OF THE INVENTION Described briefly, in a typical embodiment of the present invention, a flexible pouring spout with a comparatively rigid 'neck portion and comparatively flexible body portion joined thereto, is provided with a cap having a skirt portion extending a substantial distance-axially into the space between the neck portion and body portion when the spout is innested position This cap, cooperating with the body portion as provided for by the contour of the latter, provides radial support therefor to avoid collapse thereof onto the neck portion which might otherwise result from internal pressures in a container.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectiontaken through a container (shown fragmentarily) ata plane containing the axis of a nested pour spout, illustrating in the-solid lines the nested condition ofa prior art spout as it might appear when not subjected to internal container pressure, and showing by the dotted line, the collapsing which can occur by generation'of'intemal pressure in gas or vapor at 29.

FIG. 2 is a section taken on a plane normal to the spout axis at line 2-2 in'FIG. l and viewed in the direction'of the arrows, showing the collapse which can occur in some prior art spouts subjected to internal pressure.

FIG. 3 is a top plan view of a container top with a pour spout and cap combination according to a typical embodiment of the present invention, shown in the nested condition with the tamper-proof metal seal cover removed therefrom.

FIG. 4 is a section taken at line44 in FIG. 3 and viewed in the direction of the arrows.

FIG. 5 is a section through a combination according to another embodiment of the present invention wherein the cap is provided with support ribs.

FIG. 6 is a section taken at line 6-6 in FIG. 5 and viewed in the direction of the arrows.

DESCRIPTION OF THE PREFERRED EMBODIMENT encompassi'ng'the opening 14 therein, the flange'andppening wall 14 having collinear axes 16.

A flexible nestable spout unit 17 is shown in its nested condition and includes a neck portion 18 an inverted frustoconical body portion 19, and the annular mounting portion 21 of inverted U-shaped cross section. An integral outlet seal portion 22 is provided across the top of the neck portion. This unit is secured in place on the flange 13 by the anchor ring 23 crimped or otherwise attached over the combination flange and mounting portion of the container and the closure, respectively. This ring is typically made of steel, but can be made of other metals or materials which can be cold formed beyond their elastic limit to a desired shape and remain in that shape. P

A tamper-proof seal cap 24 is secured to the inner margin of the ring 23 to cover the bail handled closure cap 26'. Closure cap 26 is threadedly received on the neck 18 of the spout unit, and may be of a type generally shown and described in the Rieke, U.S. Pat. No. 3,250,428. The tamper-proofseal cap 24, which is usually made of the same material as the anchor ring 23, may be torn away from the anchor ring-to provide access to the bail 28 to facilitate pulling the spout from the nested position to an aforementioned Rieke, U.S. Pat. Nos. 2,895,654 and 3,250,428. The closure cap 26 can then be unscrewed from the neck and thereby removed therefrom. The integral seal 22 can then be cut away to permit pouring contents from the container. 7

Because of the fact that the body portion 19 is quite flexible to facilitate movement of the spout between the nested and extended position, there is the possibility that internal pressure in the container will have an' adverse effect upon this' portion of the spout. This is illustrated in the dotted line showing at 19c in FIG. 11 where the pressure in area 29 in the container has collapsed the body portion toward the neck 18. This collapsing effect will typically occur in five or six equally spaced areas around the circumference of the bodyportion as better shown in FIG. 2. As a result of this collapsingof the body portion of the prior art configurations, stresscracking can occur near the crests or ridges between therece'sses 190, as shown generally at 30 in FIG. 2. This radius of theouter fibers of the body portion at such ridges may be as low as three sixteenths of an inch when the filled containers are subjected to various ranges of temperature which'may be encountered during normal shipping conditions. This canoccur at all five or six of such ridges, and is particularly detrimental'when the contents of the container are such as would aggravate the condition.

Referring now to FIG. 3, the closure cap'3'1 according to the illustrated embodiment of the present invention has'a first bail handle 28 and a second bail handle 32 virtually identical thereto but on an opposite side of the center line of the cap. Of course FIG. 3 shows the tamper-proof sealremovedso that the closure cap 31 is plainly visible. The anchor ring 23 can be the same as in 'FIG. I and so can the container top 11 and collar 13.

According to one embodiment of the invention as shown in FIG. 4, the spout hasa base portion 33 extending generally horizontally from the lower inner margin of the mounting portion 34, radially inwardly toward the axis 36of the assembly. The body portion 37 extends downwardly from the baseportion at a rather small angle with respect to a lineparallel to the axis 36, as indicated by angle 38 in FIG. 4. In other words, the body portion, while being of inverted frustoconical shapeas in the prior art construction, is of a much smaller vertex angle. Accordingly, the annular space 39 between the perimeter or circumference of the neck portion 18 and body portion 37 is of a much smaller radial dimension than in theprior art example. In addition, the cap 31 is provided with a skirt 41 extending coaxially with the neck and body portion to a point 42 near the bottom of this annular space and in close proximity tothe body portion as at 43.

When the'combination is constructed in'this manner according to one embodiment of the present invention, the outer periphery 44 of the skirt 41 serves to support the body portion referred to above with respect to the prior art. In this example, because of the radial support provided by the skirt 41 for the body portion 39, when it is subjected to substantial internal container pressure, it may only be deformed a very slight amount as suggested by the dotted line 39 in FIG. 4, collapse of the upper region of the body portion being resisted both by virtue of the cap support provided for the lower region and also by virtue of the tensile strength of the thicker base portion 33 tending to hold the upper region of the body portion in the desired circular shape. Accordingly the maximum amount of cavity which might be caused by a high-intemal pressure condition can be limited to as small an amount as desired to avoid forming ridges of sufficient severity (of the type indicated in FIG. 2) to result in stress cracking. In other words, while the annular space 39 is large enough to permit easy removal of the cap from the threads 46 of the spout, it is small enough to permit the cap skirt to support the body portion and avoid Iowradius ridges such as shown in FIG. 2 and which would result in stress cracking.

In addition to the cap 31 serving to support the body portion of the spout, it serves as a most convenient means for raising the spout from the nested condition shown in FIG. 4 to the extended position shown by the dotted outline 47. For this purpose, in addition to incorporating the bail handle 28, the bail handle 32 is provided, both being joined to the radially extending lugs 48 integral with the cap, there being the hinge portions SI of reduced cross sectional area to facilitate bending each of the bail handles upwardly in the direction of arrows 52 so that the outermost free portions 53 of the bails may be abutted between the fingers to provide a greater and more comfortable bearing area for the fingers to engage for pulling the spout from the nested position. Because of the memory of the material of the cap, the bails will return substantially to their original coplanar relationship as shown in FIG. 4 when they are released. The spout, however, will remain extended until such time as it is pushed back into the nested position.

Referring not to FIG. 5, the construction of the spout is the same as in FIG. 4, incorporating the integral outlet seal 22, neck portion 18, body portion 37, base portion 33, and mounting portion 34, all of low-density polyethylene, for example. As in the previous case, the body portion is highly flexible compared to the less flexible base portion portion, and comparatively rigid neck portion 18. It is capable of deformation into a reversed curvature at 54 and at 56 to form a shoulder as at 55 upon extension of the spout, just as in the previous embodiment. However, in this embodiment, the cap is provided with a plurality of circularly spaced axially extending ribs 57 as shown in FIG. and in the section of FIG. 6. These project axially from beneath the overhang portion 58 of the cap and may be tapered slightly inwardly at 59 on the same angle 38 as is the inner wall of the body portion at 37. These circularly spaced axially extending ribs provide support for the body portion around its circumference so that, regardless of internal pressure, there is no collapse at all of the body portion. Here, therefore, there is no chance of stress cracking due to collapse which might otherwise result from internal pressure.

Because of the support provided for the body portion ac cording to the present invention, the materials employed therein can be of less critical nature and can be selected with greater freedom of choice, giving more opportunities for cost savings and choice of physical and chemical characteristics. Other possible configurations of caps and spout body portions might be devised incorporating the support therefor to withstand various levels of internal pressure, all within the scope and teaching of the present invention.

The invention claimed is:

l. A nestable and extendable spout combination comprismg:

a mounting portion securable to a container at an opening therein;

a base portion extending inwardly from said mounting portion;

a body portion extending downwardly from said base portion and inwardly;

a neck portion extending upwardly from said body portion and located inwardly from said body portion; and

a cap secured to said neck portion and having a skirt extending toward the junction of said body and neck portions;

said body portion being of inverted, generally frustoconical configuration of a comparatively small vertex angle;

said cap skirt projecting into the space between said neck portion and said body portion a distance more than twothirds the length of said body portion;

said cap skirt having an outer surface engageable by said body portion for lateral support of said body portion by said cap skirt.

2. The combination comprising:

a container having an opening in a wall thereof;

a nestable and extendable spout made of a material subject to stress cracking and having mounting, base, body and neck portions;

said mounting portion being secured to said wall and sealed thereto around said opening;

said body portion extending downwardly from said base portion and inwardly;

said neck portion extending upwardly from said body portion and located inwardly therefrom;

and a cap secured to said neck portion and having a skirt extending toward the junction of said body and neck portions a distance of more than half the length of said body portion 1;

said body portion having a normal configuration when said spout is nested and the pressure inside said container is substantially the same as pressure outside said container;

said skirt being disposed in closely spaced relationship to said body portion and engageable by said body portion in response to deformation of said body portion by generation of pressure in said container exceeding pressure outside said container, said skirt thereby limiting such deformation and thereby precluding stress cracking of the material of said body portion.

3. A nestable and extendable spout combination comprisa mounting portion securable to a container at an opening therein;

a base portion extending inwardly from said mounting portion;

a body portion extending downwardly from said base portion and inwardly;

a neck portion extending upwardly from said body portion and located inwardly from said body portion;

a cap removably secured to said neck portion and having a skirt extending toward the junction of said body and said neck portions,

a stop means on said cap cooperating with said neck portion to limit the extent of axial travel of said cap on said neck portion upon installation of said cap thereon,

said cap skirt having the outer surface remote from the top of said cap tapered to conform tangentially to the inner wall of said body portion when said cap travel is limited by said stop means.

4. The combination ofclaim 3 wherein:

said skirt has a plurality of circularly spaced, axially extending external ribs thereon engageable by said body portion.

5. The combination of claim 3 wherein said cap has a double bail handle having flexibility and memory.

6. A nestable and extendable spout combination compris- A container having an opening in a wall thereof;

a nestable and extendable spout having mounting, base,

body, and neck portions;

said mounting portion being secured to said wall and sealed thereto around said opening;

said body portion extending downwardly from said base portion and inwardly;

said neck portion extending upwardly from said body portion and located inwardly therefrom; and

a cap secured to said neck portion and having a skirt extending toward the junction of said body and neck portrons;

the cap skirt having an external surface which contacts the body portion at a plurality of points, precluding deformation of the contacted area of said body portion by pressure generated in said container.

7. A nestable and extendable spout combination comprisa container having an opening in a wall thereof;

a nestable and extendable spout having mounting, base,

body, and neck portions;

said mounting portion being secured to said wall and sealed thereto around said opening;

said body portion extending downwardly from said base portion and inwardly;

said neck portion extending upwardly from said body portion and located inwardly therefrom; and

the cap skirt having an external surface which is very close to the body portion at a plurality of points, precluding significant deformation of said body portion by pressure generated in said container.

8. The combination of claim 7 wherein said skirt has a plurality of circularly spaced, axially extending external ribs thereon engageable by said body portion.

9. The combination of claim 7 wherein said cap has a double bail handle having flexibility and memory.

UNITED STATES PATENT ()FFICE CERTIFICATE OF CORRECTION Patent No. 3,613, 966 Dated October 19, 197].

Inventor(s) Kenneth L. Summers It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

On both sheets of drawing, "3,513,966" should be changed to ----3,6l3,966--.

Column'l, line 12 "Irving" should be "Irvin" Column 2, lines 21 and following, "position to an aforementioned Rieke U.S. patent Nos. 2,895,65kand 3,250, 08." should be --position to an extended pouring position in a manner such as described in the aforementioned Rieke patents 2,895,654 and 3,250,428."

Coiwmn 3, line 44, "base portion portion" should be --base portion--.

fiolumn 4, line 30, "portion 1" should be --port1on--.

Signed and sealed this 25th day of April '5 972.

(SLLAL) Attost:

EDWARD T IJ-LILTCHEH, J12 :iOEQHT GOTTSCHALK Attosting; Officer Commissioner of Patents )RM PO-1050 (10-69) USCOMM-DC 60375-F'69

Claims (9)

1. A nestable and extendable spout combination comprising: a mounting portion securable to a container at an opening therein; a base portion extending inwardly from said mounting portion; a body portion extending downwardly from said base portion and inwardly; a neck portion extending upwardly from said body portion and located inwardly from said body portion; and a cap secured to said neck portion and having a skirt extending toward the junction of said body and neck portions; said body portion being of inverted, generally frustoconical configuration of a comparatively small vertex angle; said cap skirt projecting into the space between said neck portion and said body portion a distance more than two-thirds the length of said body portion; said cap skirt having an outer surface engageable by said body portion for lateral support of said body portion by said cap skirt.
2. The combination comprising: a container having an opening in a wall thereof; a nestable and extendable spout made of a material subject to stress cracking and having mounting, base, body and neck portions; said mounting portion being secured to said wall and sealed thereto around said opening; said body portion extending downwardly from said base portion and inwardly; said neck portion extending upwardly from said body portion and located inwardly therefrom; and a cap secured to said neck portion and having a skirt extending toward the junction of said body and neck portions a distance of more than half the length of said body portion 1; said body portion having a normal configuration when said spout is nested and the pressure inside said container is substantially the same as pressure outside said container; said skirt being disposed in closely spaced relationship to said body portion and engageable by said body portion in response to deformation of said body portion by generation of pressure in said container exceeding pressure outside said container, said skirt thereby limiting such deformation and thereby precluding stress cracking of the material of said body portion.
3. A nestable and extendable spout combination comprising: a mounting portion securable to a container at an opening therein; a base portion extending inwardly from said mounting portion; a body portion extending downwardly from said base portion and inwardly; a neck portion extending upwardly from said body portion and located inwardly from said body portion; a cap removably secured to said neck portion and having a skirt extending toward the junction of said body and said neck portions, a stop means on said cap cooperating with said neck portion to limit the extent of axial travel of said cap on said neck portion upon installation of said cap thereon, said cap skirt having the outer surface remote from the top of said cap tapered to conform tangentially to the inner wall of said body portion when said cap travel is limited by said stop means.
4. The combination of claim 3 wherein: said skirt has a plurality of circularly spaced, axially extending external ribs thereon engageable by said body portion.
5. The combination of claim 3 wherein said cap has a double bail handle having flexibility and memory.
6. A nestable and extendable spout combination comprising: A container having an opening in a wall thereof; a nestable and extendable spout having mounting, base, body, and neck portions; said mounting portion being secured to said wall and sealed thereto around said opening; said body portion extending downwardly from said base portion and inwardly; said neck portion extending upwardly from said body portion and located inwardly therefrom; and a cap secured to said neck portion and having a skirt extending toward the junction of said body and neck portions; the cap skirt having an external surface which contacts the body portion at a plurality of points, precluding deformation of the contacted area of said body portion by pressure generated in said container.
7. A nestable and extendable spout combination comprising: a container having an opening in a wall thereof; a nestable and extendable spout having mounting, base, body, and neck portions; said mounting portion being secured to said wall and sealed thereto around said opening; said body portion extending downwardly from said base portion and inwardly; said neck portion extending upwardly from said body portion and located inwardly therefrom; and the cap skirt having an external surface which is very close to the body portion at a plurality of points, precluding significant deformation of said body portion by pressure generated in said container.
8. The combination of claim 7 wherein said skirt has a plurality of circularly spaced, axially extending external ribs thereon engageable by said body portion.
9. The combination of claim 7 wherein said cap has a double bail handle having flexibility and memory.
US3613966A 1969-04-17 1969-04-17 Nestable pouring spout with wall-supporting cap Expired - Lifetime US3613966A (en)

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US3865270A (en) * 1973-03-08 1975-02-11 Bengt Olov Petersson Device for compensating excess pressures in closed containers
US4219137A (en) * 1979-01-17 1980-08-26 Hutchens Morris L Extendable spout for a container
US4236629A (en) * 1978-10-02 1980-12-02 American Flange & Manufacturing Co. Inc. Nestable pouring spout assembly
DE3014208A1 (en) * 1979-08-09 1981-02-19 Rieke Corp Belueftungsvorrichtung for closure lid
DE3014689A1 (en) * 1979-07-26 1981-03-26 Rieke Corp Closure device for containers
DE3118587A1 (en) * 1980-05-12 1982-02-25 Rieke Corp Tamper-proof cap
US4555048A (en) * 1984-05-16 1985-11-26 Rieke Corporation Vented nestable pouring spout
US4564139A (en) * 1982-05-07 1986-01-14 Tetra Pak Developpement S.A. Packaging means for filling materials which are capable of flow, having a re-closable opening means
US4572422A (en) * 1983-10-05 1986-02-25 Carl Edelmann Verpackungstechnik Gmbh Container with inner pouch and reclosable spout
US4618078A (en) * 1984-05-16 1986-10-21 Rieke Corporation Vented nestable pouring spout
US4632282A (en) * 1984-03-02 1986-12-30 Hirohisa Nagashima Spout assembly
US4893726A (en) * 1987-07-23 1990-01-16 Colgate-Palmolive Company Container for controlled release of a preferably liquid medium
US5071037A (en) * 1989-09-14 1991-12-10 Graham Engineering Corporation Blow molded bottle with integral pour spout
DE4139896A1 (en) * 1991-12-04 1993-06-09 Blechwarenfabrik Limburg Gmbh, 6250 Limburg, De Safety screw cap for barrel - must first be pulled axially to disengage locking teeth and so cannot be unscrewed by child
US5566864A (en) * 1992-03-26 1996-10-22 Heinrich Stolz Gmbh & Co. Kg Childproof closure for a container comprising a lower portion with extensible spout and a screw cap
EP0779227A1 (en) 1995-12-08 1997-06-18 Rieke Corporation Nestable pouring spout assembly
US5899364A (en) * 1997-08-05 1999-05-04 Rieke Corporation Insert molded tamper evident pouring spout
US5950876A (en) * 1997-08-05 1999-09-14 Rieke Corporation Insert molded tamper evident pouring spout
US6106261A (en) * 1998-08-31 2000-08-22 John W. Von Holdt Apparatus for molding a one-piece article in a single molding operation using two different plastic materials
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US20040129713A1 (en) * 2002-12-02 2004-07-08 Oleg Naljotov Drinks container
US7152766B1 (en) 2004-09-01 2006-12-26 Rexam Beverage Can Co. Metal re-sealable beverage container with pour spout
US20070278256A1 (en) * 2006-06-06 2007-12-06 Law Brian R Tamper-evident closure for a container
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US20090212079A1 (en) * 2006-06-12 2009-08-27 Baughman Gary M Closure assembly having a spout with a thicker band for spout directing
US7624899B1 (en) * 2005-06-27 2009-12-01 Ipour, LLC Extendable pour cap
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Cited By (42)

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Publication number Priority date Publication date Assignee Title
US3865270A (en) * 1973-03-08 1975-02-11 Bengt Olov Petersson Device for compensating excess pressures in closed containers
US4236629A (en) * 1978-10-02 1980-12-02 American Flange & Manufacturing Co. Inc. Nestable pouring spout assembly
US4219137A (en) * 1979-01-17 1980-08-26 Hutchens Morris L Extendable spout for a container
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Also Published As

Publication number Publication date Type
BE893164A7 (en) grant
FR2045370A5 (en) 1971-02-26 application
GB1270086A (en) 1972-04-12 application
BE893164Q (en) 1982-08-30 grant
CA919104A1 (en) grant
CA919104A (en) 1973-01-16 grant

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