CA2064233A1 - Piercing nozzle for pouch fitment - Google Patents

Piercing nozzle for pouch fitment

Info

Publication number
CA2064233A1
CA2064233A1 CA002064233A CA2064233A CA2064233A1 CA 2064233 A1 CA2064233 A1 CA 2064233A1 CA 002064233 A CA002064233 A CA 002064233A CA 2064233 A CA2064233 A CA 2064233A CA 2064233 A1 CA2064233 A1 CA 2064233A1
Authority
CA
Canada
Prior art keywords
film
piercing
tip
tube
securement
Prior art date
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
CA002064233A
Other languages
French (fr)
Inventor
Raymond Peter Harrison
Ralph Carl Wirsig
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.)
DuPont Canada Inc
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2064233A1 publication Critical patent/CA2064233A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67BAPPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B7/00Hand- or power-operated devices for opening closed containers
    • B67B7/24Hole-piercing devices
    • B67B7/26Hole-piercing devices combined with spouts

Abstract

A spout is disclosed, for insertion into and securement to a plastic pouch. The spout comprises a tube (11) having a piercing portion (13) separated from a delivery portion (12) by a film securement portion (22) and having fluid flow communication from the piercing portion to the delivery portion. The film securement portion (22) is adapted to secure, with a substantially liquid-tight seal, plastic film which has been pierced by the piercing portion.
The piercing portion (13) appears, in one perspective, to have been sliced at an angle to the longitudinal axis from a first location (23) at one side of said tube adjacent the film securement portion to a second location (14) at the other side of the tube, distal from the film securement portion, to form a tip (14), and to provide a slot (25) which aims to aid in draining material from the pouch, and the tip appears, in a second perspective perpendicular to the first perspective, to have been sliced symmetrically about the longitudinal axis of the tube to form a pointed piercing tip furthest away from the film securement portion (22). The contours of these slices are such that when the painted tip (14) is pushed into the film, the force required remains substantially constant.

Description

W~91/01939 ~ ;.' PCT/~A90/0023~
2~4~3`3 PIERCING NOZZLE_FOR_POUCH FITMENT
The present inventi.on relates to an improved piercing nozzle for pouch fitments, which are used to control the removal of the contents of filled thermoplastic polymeric film pouches.
As is known, the use of plastic pouches is common with respect to packaging certain liquids and other fluid materials, e.g. milk, fruit juices, relish and the ~ike. The plastic pouches alre often made of polyethylene film. In order to remove the cont~nts - from the pouch, a simple method of cutting one of the corners, for example with scissors, has sufficed for - many end uses. However, with institutional .
purchasers, this is inconvenient and the snipped-off corner may contaminate the material after it has been poured or squeezed from the pouch.
It is desirable that the pouch has a pouring spout, preferably one that can be resealed. Xt is known to incorporate pouring spouts into plastic pouches but this is expensive because of the need for one pouriny spout per pouch. It would be economically more-desirable if the pouring spout was able to be inserted into the pouch and usèd until the pouch is . . .
-- empty, then removed and cleaned for re-use with another pouch.
-- one such pouring spout is disclosed in Canadian Patent 1 192 164 to L. Obidniak. In L.
- - Obldniak's configuration, the pouring spout comprises --an elongated body, one of the ends being pointed and ;- ~thë other béing intègraiiy prolonged by a threaded stèm. A passage is provided for,flow of liquid from the pouch. The disclosure of L; Obidniak indicates .. ~, ~, ~ , ., . . - - . ... .. . ..
~ that the passage is preferably T-shaped. The T-shaped ~ ~-passage is ineffective for removing.thick materials " - , . ... . . . ..
! . ;~ _ ~ , wogl~olg39 2~B~ PCT/CA~/00238 ;~

which include particulates therein, for example relish, from the pouch.
: The present invention endeavours to provide a spout which is easily inserted into a plastic pouch and which is adapted to allow removal of a wide variety of matPrials from such pouch.
Accordingly the present inv~ention provides a spout, for insertion into and securement to a plastic pouch, comprising a tube having a piercing portion separated from a delivery portion by a film securement portion and having fluid flow communication from the piercing portion to the delivery porti~n; said film securement portion being adapted to secure, with a substantially liquid-tight seal, plastic film which has been pierced by the piercing portion; said piercing portion appearing, in one perspective, to have been sliced at an anqle to the longitudinal axis, from a first location at one side of said tube adjacent the film securement portion to a second location at th~ other side of the tube, distal from the film securement portion, to form a tip, and the tip appearing, in a second perspective at 90- to the first perspective, to have been sliced symmetrically about the longitudinal axis of the tube to form a pointed piercing tip furthest away from the film securement portion. ;
In one embodiment the contour of the piercing portion is such that when the pointed tip is pushed into a polyethylene film, in a direction parallel to the longitudinal axis of the tube, the force required to push the piercing nozzle into the polyethylene film remains substantially constant after the tip pierc s the film until the pierced edges o the film reach a position adjacent the~film securement portion.
In another embodiment the angle of the tip is less than about 75-.

~ i . .
! -WO91/01939 $/ '.~ $~ ', P~T/ ~ ~ 3 3 In a further embodiment the angle of the tip is from 60- to 45~.
In another embodiment, ~he piercing portion has a wall tapering from being thick adjacent the film securement portion to thin furthest away from the film securement portion, such that the p.iercing portion is frusto-conical.
In another embodiment the confluence and immediate surrounds of a) the portion appearing to have been sliced from one side of said tube to the other side of the tube and b) the portion appearing to have been sliced symmetrically about the longitudinal axis of the tube to form a pointed piercing tip, is shaped such that there is a smooth transition herebetween.
In yet another embodiment the edges of the piercing portion, at least adjacent thé piercing tip, are keen.
In another embodiment the edges of the piercing portion, at least adjacent the piercing tip, are smoothed.
. In another embodiment-the film secure~ent portion comprises a shoulder, a collar adapted to cooperate with the shoulder to trap said plastic film therebetween in a liquid-tight-seal, and a'locking nut adapted to hold the col}ar;in engagement with the shoulder, a~d wherein the narrower portion of the shoulder faces the'delivery portion. ' '' - In a ~'urther embodiment the delivery portion is adapted to have a cap or'delivéry nozzle attached ~' thereto. - ' " '~' '~~''~
In yet another embodiment'the pièrcing portion has a slot, in the sliced portion, which . extends substantially to the shoulder~ ' In another embsdiment-the slice adjacent the ~ 4 2 33 PCT/CA90/00238 ~_ ,,, - .; . ; ., ilm securement portion is in a plane at an angle of from 20 to 30 to the longitudinal axis of the tube.
In another embodiment the angle of the tip is from 60 to 45-.
In a further embodiment the internal diameter of the tube is from 10 to 30 mm.
One embodiment is shown in Figures 1 and 2 which are elevation and plan views respectively.
Another embodiment is shown in Figures 3 and 4, which are elevakion and plan views respectively. Figure 5 is a graph showing khe force required to insert the piercing portion of the spout into a polyethylene film.
In Figures 1 and 2, the spout comprises tube 11 having an open end 12 and a sharpened end 13. Open end 12 is the delivery portion of the spouk and the sharpened end is the piercing portion of the spout.
The piercing and delivery portions are joined by film securement portion 22. The sharpened end 13 comprises a point 14 with a first portion 15 which is adjacent to a second portion 16. There is a shoulder 17 at khe juncture of the first and second portions. As will be apparent the second portion appears to have been formed by slicing a tube from adjacent the film ;securement portion, at point 23, to the opposite side of the tube, i.e. towards poink 14. Typically, the angle of this slice is abouk 25- to the longitudinal axis of tube,~ll. The tube then appears to have been sliced along the edges of portion 15 to form point 14. The "slices" are symmekrical about the 30 ~ 3, .~ .. ` ^: ' - -longitudinal axis of tube 11 and are in planes which intercept~in a llne, the projection of which includes both the longitudinal axis of tube 11 and the extreme .. ..
tip of point 14. It is-preferable-that the resulting angle of the tip, at point 14, be from 60 to 45-. The :

WO91/0l939 2 ~ 3~ 'PCT/CA90/00238 . . ~ .

angle of the tip is the included angle between the edges of portion 15. Typically, the angle of the - slices which form portion 15 is about 28 to the longitudinal axis of tube 11, thus ~Eorming a tip angle of 56~. The confluence of portions 15 and 16 is, in this instance, at shoulder 17. It :is preferable that shoulder 17 be smoothed rather than angula- so that it , . is easier to push into the film'of a po-lch. The wall thickness of tube ll adjacent shoulder 21 is thick relative to thickness at point 14, thus making tube 11 frusto-conical in the piercing portion of the spout.
Preferably, the edge of tube 11 leading to point 14, of tube 24, i.e. edge 18, is tapered at a narrow taper, for example-from about 3- to lO-, especially 5-to 8-. The spout also has a tubular portion 19 which is adapted to receive a locking nut (not shown) which may be threaded onto threads 20. Threads 20 are adjacent shoulder 21, the functions of which are explained more in detail hereinafter. Because of the thickness of tube 11, the "slice" which forms portion -16 would normally cause the opening at the piercing portion...to extend from point^14 to the dotted line 24. It..is preferred, however', that t~be 11 be cut ,.away .to form a slot 25 which extends substantially to - shoulder 21. Slot 25-is'to aid in draining material , from.the pouch and the width of the slot will be ; ,determined,:in part'by the size of particulates, if ,, any,~in the material. It;is'preferable that the point ~ 14,,be~slightly blunted so`that it does not form a skin ~ puncturing.haz~rd.for the operator. It will be ~i ~,apparent:,from the-drawings that the piercing portion . is~,shaped somewhat similar to a pen nib, but the , _function.and the manner of`attachment-to the remainder ~rlOf the-apparatus :is, of-course;/ very dissimilar. The . spout is preferably.made from a stiff material, e.g.

WO91/01939 ~ PCT/~90/00238 ,,_, metal or hard plastic, and may be made by known methods such as machining or injection moulding.
Although in Figures l and 2 it appears that , the "slices" are linear, it is to be understood that the slices may be arcuate. In Figures 3 and 4 the spout is somewhat similar to that of ~igures l and 2 but the confluence between portions 15 and 16 have been smoothed in order to form a spout which is easier to insert into a pouch. Also shown in this embodiment is that the threads 20 are spaced f'urther from shoulder 21 in order to leave a smootA tubular portion adjacent shoulder 2l. In Figures I to 4, shoulder 2l and portions adjacent thereto may be referred to as the film securement portion. -Adjacent point 14 and along the edges of portion 15 and into the confluence between portions 15 and 16 it.is preferable that the edges be smoothed. ~., Figure 5 is a combination of two graphs.
With respect to line A, the abscissa relates to the distance along the longitudinal axis of tube ll, starting at point 14, and the ordinate shows the length of a single turn .of taut-.~hread which.surrounds the spout at cross-sections of the spout, such cross-sections being at 90- to the -longitudinal axis 25 ~ of tube ll. With respect to line B, the abscissa is the same as for line A and the ordinate shows the force required to push the piercing portion of the ,spout into a polyethylene:film.:.Line A:shows the "perimeter" of a spout similar to that~shown'in Figures 3 and 4, as a ,function of distance'from the tip. Line B indicates;,the force.-required~-;to push the piercing portion of the,same.spout-into a'polyethylene film, as a function-of the,distance.from-the'~ip.
Spike C shows the force required tor.puncturè the film initially. It will be,seen that after-the initial WO91~01939 2 0 g ~ 2 3 ~3 ~ cr/CAgO/00238 puncturing of the film, the force required for insertion of the piercing portion does not increase as the portion progressively penetrates the film.
Indeed, in the embodiment shown, the force remains relatively constant. Dotted line D shows the force required when the confluence i~ not smoothed, as in the embodiment of Figures 1 and 2. As may be imagined, the embodiment shown with line A is preferred.
The spout of the present invention may be used for pouches containing a variety of different flowable materials, particularly foodstuffs, e.g.
mayonnaise, relish, and the like. In operation a filled pouch is grasped, for example between thumb and forefinger, in such a manner that there is a slight negative pressure engendered in the pouch. The point 14 is then pushed into the film of the pouch, close to the place where the pouch was grasped. The spout is then pushed firmly into the pouch, so that the ~ilm is stretched around the perimeter of first portion 15 and then portion 16 until the hole in the po~ch passes shoulder 21 and surrounds the tubular film securing portion. The collar (not shown) is placed over threads 20 and a locking nut (also not shown) is screwed tightly so that the film edges are trapped between shoulder 21 and the collar. The spout will then allow material from the pouch to flow through the tubular fi~ment. Slot 25 allows the material in the pouch to be almost completely drained from the pouch.
The present invention is particularly desirable for spouts which have internal diameters of about 8 mm or more, and especially from lO to 30 mm. Typically, the internal diameter of the spout is about 14 mm.
The spout may have attached thereto, at end 3~ 12, a closure device (cap) so that the pouch may be WO91/01939 2 ~ ~ 4~ ~ 3 - - 8 - PCT/CA90/00238 ~-stored without material leaking therefrom through the spout. Alternative~y, the spout may have various fitments attached there.to, for example piping nozzles usPd for icing sugar. The cap or fitments fit against end 12 and are held in place by a further securing nut (not shown~ or similar.

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Claims (12)

CLAIMS:
1. A spout, for insertion into and securement to a plastic pouch, comprising a tube having a piercing portion separated from a delivery portion by a film securement portion and having fluid flow communication from the piercing portion to the delivery portion;
said film securement portion being adapted to secure, with a substantially liquid-tight seal, plastic film which has been pierced by the piercing portion; said piercing portion appearing, in one perspective, to have been sliced at an angle to the longitudinal axis from a first location at one side of said tube adjacent the film securement portion to a second location at the other side of the tube, distal from the film securement portion, to form a tip, and the tip appearing, in a second perspective perpendicular to the first perspective, to have been sliced symmetrically about the longitudinal axis of the tube to form a pointed piercing tip furthest away from the film securement portion.
2. A spout according to Claim 1 wherein the contours of said slices are such that when the pointed tip is pushed into a polyethylene film, in a direction parallel to the axis of the tube, the force required to push the piercing nozzle into the polyethylene film remains substantially constant after the tip pierces the film until the pierced edges of the film reach a position adjacent the film securement portion.
3. A spout according to Claim 1 wherein the angle of the tip is less than about 75°.
4. A spout according to Claim 3 wherein the angle of the tip is from 60° to 45°.
5. A spout according to Claim 1 wherein the piercing portion has a wall tapering from being thick adjacent the film securement portion to thin furthest away from the film securement portion, such that the piercing portion is frusto-conical.
6. A spout according to Claim 1 wherein the edges of the piercing portion, adjacent the piercing tip, are smooth.
7. A spout according to Claim 1 wherein film securement portion comprises a shoulder, a collar adapted to cooperate with the shoulder to trap said plastic film therebetween in a liquid-tight seal, and a locking nut adapted to hold the collar in engagement with the shoulder, and wherein the narrower portion of the shoulder faces the delivery portion.
8. A spout according to Claim 1 wherein the piercing portion said delivery portion is adapted to have a cap or delivery nozzle attached thereto.
9. A spout according to Claim 1 wherein the piercing portion has a slot in the sliced portion which extends substantially to the shoulder.
10. A spout according to Claim 1 wherein the slice adjacent the film securement portion is a plane at an angle of from 20 to 30° to the longitudinal axis of the tube.
11. A spout according to Claim 9 wherein the angle of the tip is from 60 to 45°.
12. A spout according to Claim 1 or Claim 9 wherein the internal diameter of the tube is from 10 to 30 mm.
CA002064233A 1989-07-27 1990-07-27 Piercing nozzle for pouch fitment Abandoned CA2064233A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB89.17163.1 1989-07-27
GB898917163A GB8917163D0 (en) 1989-07-27 1989-07-27 Piercing nozzle for pouch fitment

Publications (1)

Publication Number Publication Date
CA2064233A1 true CA2064233A1 (en) 1991-01-28

Family

ID=10660705

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002064233A Abandoned CA2064233A1 (en) 1989-07-27 1990-07-27 Piercing nozzle for pouch fitment

Country Status (11)

Country Link
EP (1) EP0410770B1 (en)
AT (1) ATE96408T1 (en)
AU (1) AU632155B2 (en)
CA (1) CA2064233A1 (en)
DE (1) DE69004180T2 (en)
ES (1) ES2048975T3 (en)
GB (1) GB8917163D0 (en)
IE (1) IE902725A1 (en)
MX (1) MX172936B (en)
NZ (1) NZ234656A (en)
WO (1) WO1991001939A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9109168D0 (en) * 1991-04-29 1991-06-19 Du Pont Canada Reuseable pouch fitment
US5256137A (en) * 1992-03-10 1993-10-26 Becton Dickinson And Company Biphasic power source for use in an iontophoretic drug delivery system
IT1260382B (en) * 1992-09-15 1996-04-05 DEVICE FOR POURING LIQUIDS FROM CONTAINERS.
FR2754507B1 (en) * 1996-10-14 1998-11-27 Valeo Systemes Dessuyage WASHING LIQUID SPRAYING DEVICE FOR A MOTOR VEHICLE COMPRISING IMPROVED CONNECTION MEANS
US6378730B1 (en) 2000-10-27 2002-04-30 Nestec S.A. Quick-locking device for effecting hygienic transfer of flowable material from a container by piercing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2102773A (en) * 1981-07-25 1983-02-09 John Frederick Wood Particle dispenser
CA1192164A (en) * 1982-04-08 1985-08-20 Ludger Holscher Spout for liquid filled bag
AU4252585A (en) * 1984-09-24 1986-04-10 Llewellyn, G.T. Carton dispenser

Also Published As

Publication number Publication date
AU632155B2 (en) 1992-12-17
ES2048975T3 (en) 1994-04-01
MX172936B (en) 1994-01-24
EP0410770B1 (en) 1993-10-27
DE69004180D1 (en) 1993-12-02
NZ234656A (en) 1992-03-26
WO1991001939A1 (en) 1991-02-21
ATE96408T1 (en) 1993-11-15
DE69004180T2 (en) 1994-05-05
IE902725A1 (en) 1991-02-27
AU6043090A (en) 1991-03-11
EP0410770A1 (en) 1991-01-30
GB8917163D0 (en) 1989-09-13

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Legal Events

Date Code Title Description
FZDE Discontinued