CA2466182C - Flexible plastic container - Google Patents
Flexible plastic container Download PDFInfo
- Publication number
- CA2466182C CA2466182C CA002466182A CA2466182A CA2466182C CA 2466182 C CA2466182 C CA 2466182C CA 002466182 A CA002466182 A CA 002466182A CA 2466182 A CA2466182 A CA 2466182A CA 2466182 C CA2466182 C CA 2466182C
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- CA
- Canada
- Prior art keywords
- sidewall
- container
- objects
- shape
- fitment
- 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.)
- Expired - Fee Related
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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
- 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
-
- 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
- B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
- B65D75/52—Details
- B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
- B65D75/5861—Spouts
- B65D75/5872—Non-integral spouts
- B65D75/5877—Non-integral spouts connected to a planar surface of the package wall
-
- 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
- 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
-
- 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
- B65D2231/00—Means for facilitating the complete expelling of the contents
- B65D2231/001—Means for facilitating the complete expelling of the contents the container being a bag
- B65D2231/002—Means for facilitating the complete expelling of the contents the container being a bag comprising strips forming channels or liquid passageways
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Bag Frames (AREA)
- Tubes (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
A flexible polymeric container (10) for storing and dispensing liquids includes a first sidewall (12) and a second sidewall (13) connected together to define a fluid chamber (16) therebetween. The first sidewall (12) and the second sidewall (13) each have an inner surface facing the fluid chamber (16 ) and opposed to the outer surface. A fitment (18) is attached to an outer surface of one of the first sidewall (12) or the second sidewall (13). The fitment (18) has an opening therethrough which has an axis substantially perpendicular to the outer surface. A plurality of objects (20) on the inner surface of one of the first sidewall (12) or the second sidewall (13) define s a plurality of pathways (32, 33) having at least a first pathway (32) and a second pathway (33) intersecting one another.
Description
FLEMLE PLASTIC CONTAIlYER
TECHIrTICAL F1EM
The prseut invention relates gonerally to a flexible plastic container and more particuiarly to a flesdble coaCainer for dnwting a flowable matetial comtaned fherem to a frtment of the contdna and dispensing di6 flowable mataial.
: . ~
Collapsi'ble plastic bags are often used to store liquid products such as chemicals, soft dtink syri#p, frait juices and food condmmnts. The plastie bags are typically housed in a conugated paperboard box to aid in the tramsporting, bandliqg and dispmsing of the product Such packaging systems are commonly refeaed to as "bag-in box" paclmging systms.
The plastic bags typicslly have sidewalls sealed along a pesipheorat seam to clefune a fluid eontaining chamber. A spoui or a fitnent provides access to the fluid chamber for filling and dispeosug the product witbin the bag. Vacuum pump systems are sometimes eonaected to the caatainer to assist in dreining fluid from the container.
- Both gravity dispming bags and vacuum pump systems saffor from the common drawbacac that fluid may become ttapped within the folds of the bag dnring ;draining.
Beeause of tliis, evacuation cheumels are often placed witbin the bag.
Bvacuation chaanels are typically elongate cylindrical tubes or flat stiips with protruding ribs defining grooves. Typieslly, one end of the evacuation channel is disposed transverse to, or is ceamected to the spout, and the other end of the evacuation channel extends into the fluid containing chamber of the bag. As the bag is emptied by the foree of the vacuum pump, or by the force of gravity, portions of the bag oollapse unevenly, tending to leave pockets of product, typically liquid, which may become isolated from the rest of the liquid in the container. The evacuation cliamiel, however, forins a conduit which camzot be closed off by the folds created in the bag. In this manner the entire chainber of the flexible bag remains in comnlunication with the spout at all times during the dispensing such that all product within the bag can be removed.
Prior atteinpts to provide such bags are disclosed in U.S. Patent Nos.
4,601,410; 5,647,511 and 5,749,493. United States Patent Nos. 4,601,410 and 5,647,511 disclose a liquid container with an evacuation unit. In both the '410 and '511 patents, the evacuation unit is shown attached directly to the spout by a mounting ring. Several problems have been encountered with these types of evacuation units.
For example, during the filling process, wliich is typically done in a high speed and higli pressure process, the evacuation unit is susceptible of being dislodged from the spout tllereby rendering the evacuation unit inoperative. Also, the attaching ring can impede the flow of liquid during the filling process thereby slowing the filling process.
United States Patent No. 5,749,493 discloses an evacuation unit positioned within a bag and transverse and perpendicular to a spout in the bag. Because the evacuation unit is positioned in a location that is in line with the incoming fluid during the filling process, it is susceptible of being dislodged from its inounting to the container thereby rendering it ineffective. The '493 Patent also discloses extntding a pair of ribs or a single rib or protuberance extending the lengtll of the container.
Many of the designs which utilize an evacuation unit positioned within the bag require that the unit be placed into the bag after the bag has been substantially constnicted. This is highly undesirable because it adds anotlier step to the manufacturing process and increases the labor costs.
United States Patent No. Re. 34,929 discloses a plastic bag having interconnected air chaiulels on its iiuler surface for the vacuunl packaging of perishable items. The air channels are foi7ned by the spaces between a plurality of raised protuberances having ttnifonm tliiclazess and formed in a generally regular and waffle-like patteni. The protuberances prevent the total collapse of the bag during air evacuation. There is no disclosure to utilize a fitment to provide access to the contents of the container. There is also no disclosure of removing the stored contents of the bag, but, rather only removing air from the paclcage to prevent spoilage of the perishable item contained therein.
United States Patent No. 2,778,171 discloses the production of airtight packages for paclcaging perishable items such as food. Projections are provided near an opening of the airtight package for keeping sidewalls of the container from fully collapsing against one another while air is being evacuated from the container. There is no disclosure of evacuating a stored product from the container and no disclosure of providing a fitment with the bag to provide access to the stored contents.
United States Patent No. 5,728,086 discloses a flexible container having multiple access ports and particularly discloses a container for storing fluids for parenteral administration to a patient. An imler surface of a sidewall of the container can have various pattenls einbossed tliereon to assist in draining the contents of the container.
SUMMARY OF THE INVENTION
The present invention provides a flexible polyineric container for storing and dispensing liquids. The container has a first sidewall and a second sidewall comiected togetlier to define a fluid chamber therebetween. The first sidewall and the second sidewall each have an inner surface facing the fluid chainber and an opposed outer surface. A fitment is attached to an otiter surface of one of the first sidewall or the second sidewall, the fitment having an opening therethrough having an axis substantially perpendicular to the outer surface. A plurality of objects are positioned on the inner surface of one of the first sidewall or the second sidewall to define a plurality of pathways having at least a first pathway and a second pathway intersecting one another.
The present invention further provides a flexible polymeric container for storing and dispensing liquids. The container has a first sidewall and a second sidewall connected together to define a fluid chamber therebetween, the first sidewall and the second sidewall each having an iiuier sttrface facing the fluid chainber and an opposed outer surface and an access member for accessing the fluid chamber. A
plurality of a first set of objects having a first shape is positioned on the iimer surface of one of the first sidewall or the second sidewall. A plurality of a second set of objects having a second shape different from the first shape is positioned on the iimer surface of one of the first sidewall or the second sidewall.
The present invention further provides a method for evacuating a fluid from a container. The method includes the steps of: (1) providing a liquid filled container having a sidewall having an inner surface and an outer surface, (2) providing a plurality of objects on the inner surface of the sidewall to define a plurality of pathways having at least a first channel and a second channel intersecting one another; (3) providing a fitment attached to the outer surface, the fitment having an opening therethrough having an axis substantially perpendicular to the outer surface; and (4) applying a suction to the fitment to draw fluid from the container.
In accordance with an aspect of the present invention, there is provided a flexible polymeric container for storing and dispensing liquids comprising: a first sidewall and a second sidewall connected together to define a fluid chamber therebetween, the first sidewall and the second sidewall each having an inner surface facing the fluid chamber and an opposed outer surface; a fitment attached to the outer surface of one of the first sidewall or the second sidewall, the fitment having an opening therethrough having an axis substantially perpendicular to the outer surface; and a plurality of objects on the inner surface of one of the first sidewall or the second sidewall, the objects including a first set of objects with a first shape and a second set of object with a second shape different from the first shape to define a pattern of a plurality of pathways having at least a first pathway and a second pathway intersecting one another.
In accordance with another aspect of the present invention, there is provided a flexible polymeric container for storing and dispensing liquids comprising:
a first sidewall and a second sidewall connected together to define a fluid chamber therebetween, the first sidewall and the second sidewall each having an inner surface facing the fluid chamber and an opposed outer surface; an access member for accessing the fluid chamber; and a plurality of a first set of objects having a first shape on the inner surface of one of the first sidewall or the second sidewall; and a plurality of a second set of objects having a second shape different from the first shape and positioned on the inner surface of the first sidewall or the second sidewall wherein the first set of objects and the second set of objects define a pattern of a plurality of pathways.
In accordance with another aspect of the present invention, there is provided a method for evacuating a fluid from a container comprising the steps of providing a liquid filled container having a sidewall having an inner surface providing a plurality of -4a-objects on the inner surface of the sidewall the objects including a first set of objects with a first shape and a second set of objects with a second shape different from the first shape to define a plurality of channels having at least a first channel and a second channel intersecting one another; providing a fitment attached to an outer surface of the sidewall, the fitment having an opening therethrough having an axis substantially perpendicular to the outer surface; and applying a suction to the fitment to draw fluid from the container.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a perspective view of a container having a fitment;
Fig. 2 is a side view of the container of Fig. 1;
Fig. 3 is a sidewall of the container of Fig. 1 having objects having varying shapes;
Fig. 4 is a sidewall of the container of Fig. 1 having a plurality of regularly spaced rectangular protuberances to define a checkerboard pattern; and Fig. 5 is a sidewall having circular protuberances together forming a circular pattern with a series of X-shaped protuberances forming S-shaped lines.
DETAILED DESCRIPTION
While this invention is susceptible of embodiment in many different forms, herein will be described in detail with the accompanying figures, a preferred embodiment of the invention. The present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the broad aspect of the invention to the embodiments illustrated and described.
Figures 1 and 2 show a flexible container assembly 10 having a first sidewall and a second sidewall 13 attached at peripheral edges 14 to define a fluid tight chamber 16. A spout 18 is attached to an outer surface of the sidewall 12 and provides fluid flow access to the chamber 16. In a preferred form of the invention, the first and second sidewalls 12 and 13 are a flexible polymeric material having a modulus of elasticity of less than 50,000 psi. The sidewalls preferably are made from materials such as homopolymers and copolymers of polyolefins, polyamides, polyesters or other material that are capable of being sealed using industry standard sealing techniques. These techniques include, but are not limited to, heat sealing, radio frequency welding, and ultrasonic sealing. The sidewalls may be multilayered or single layered and may be fabricated from any suitable polymer processing technology including extrusion, coextrusion, extrusion lamination, lamination or other. The container can be made from individual sheets placed in registration and sealed along the periphery 14 or can be made from a blown film process where only opposing ends of a tube need be sealed to complete the container 10.
Figure 3 shows a plurality of objects 20 on the sidewall 12. The objects 20 can be positioned on a single sidewall or both. The objects, in a preferred form of the invention, are provided over an entire surface of the sidewall but could be provided only in select areas of the surface. Providing objects over the entire sidewall surface eliminates the need for registration of the sidewalls. Moreover, providing objects over the entire surface ensures that fluid is evacuated from all parts of the container, including corner regions.
The objects can be of any shape including regular shapes such as circular, polygonal, straight or curved lines, symbols or the like. The objects can also be irregular shaped. These objects 20 assist in draining fluid from the chamber 16. The objects 20 can be raised protuberances or indentations in these shapes.
The objects can be all of the same shapes or be of a combination of shapes.
The objects 20 on the sidewall 12 provides an advantage over prior art containers having an evacuation unit positioned within and attached to an inside surface of the container. The evacuation unit is typically made from a polymer material, and is heat sealed or welded to the inside of the container.
The weld area, in such containers, contacts the contents of the container. The weld area may have an undesired organoleptic effect on the container contents. Providing objects directly on the sidewall as disclosed herein eliminates any organoleptic residue arising from heat sealing the evacuation unit in the container. Moreover, the evacuation unit is typically a rigid member. The present invention eliminates the rigid member resulting in a bag having a thimier profile, thereby reducing shipping and storage volume. Also, the rigid member type evacuation unit is not entirely effective in evacuating fluid froin coiners of the container. The present invention removes fluid that would otherwise remain in the corners.
The objects 20 can form a regular pattem or an irregular pattern. The regular pattern includes objects being placed at the same or essentially the same spacing or a repeating sequence of spacings. The iiTegular pattem is one where the objects are generally randomly distributed.
In a preferred foml of the invention as shown in Figure 4, a regularly spaced pattem of rectangular-shaped objects 30 having pathways 32 defined therebetween.
This checlcerboard pattern has at least a first patllway 33 intersecting a second pathway 34. In a preferred fonn of the invention the pathways intersect at stibstantially perpendicular to one another. However, it is contemplated the intersection of pathways 32 can foi7il various angles without departing from the present invention.
Figure 5 shows another preferTed fonn of the invention having a series of circular protuberances 40 together with X-shaped protuberances 44. The circular protuberances 40 define a circular shape 42. The X-shaped protuberances 44 define a S-shaped pattern 46. Of course it is contemplated that any combination of shapes of protuberances can be used and that more than two different shapes can be used.
The present invention further conteinplates that the individual protuberances can forin varying indicia such as a trademark, tradenaine, logo, instnictions for use or other identifying or useftil inforination or advertising that can be viewed tluough the sidewall 12 or 14 or both.
The objects can be fomled on the imier surface of sidewall 12 or sidewall 14 or both by techniques well lcnown in the art including einbossing during the fabrication of the sidewall, or embossing afterwards. The pattem can also be applied by an extnzsion coating process or similar process. The objects can be pressed into the sidewalls witll a shaped die. Nttmerous other mechanisms and processes come to mind for forming the objects which are well known in the art and the present invention should not be limited to these processes recited. The pathways 32 and 33 of the pattem are preferably of a depth of greater than or equal to 1 mil, or less than 8 mils, and even more preferably less than 5 mils. Most preferably, the pathways 32 and 33 will have a depth of from about lmil to about 4 mils for fluids having the viscosity of a soft drink syrup.
The fitment 18 has an opening 50 having an axis essentially perpendicular to a panel surface of sidewall 12 of the container. It is contemplated the fitment 18 can be mounted at various angles to the sidewall without departing from the present invention. The fitment 18 provides fluid access to the contents of the chamber 16. Typically, container 10 is used for housing liquids such as soft drink syrup which are withdrawn from the container with a hose and mixed at a fountain with a diluent such as soda water. The hose (not shown) has an attachment for connecting to the fitment in a fluid and airtight arrangement. A vacuum is applied to the fitment 18 through the hose to withdraw fluid from the container. The vacuum creates a pressure difference to initiate a fluid flow. Of course, the fitment 18 may be attached to the first or second sidewall 12, 13 or both and may be located at any location thereon.
The present invention further provides a process for evacuating the container shown in Figure 1. The method for evacuating a fluid from a container comprises the steps of: (1) providing a liquid filled container having a sidewall having an inner surface; (2) providing a plurality of objects on the inner surface of the sidewall to define a plurality of channels having at least a first channel and a second channel intersecting one another; (3) providing a fitment attached to an outer surface of the sidewall, the fitment having an opening therethrough having an axis substantially perpendicular to the outer surface; and (4) applying a suction to the fitment to draw fluid from the container.
While the specific embodiments have been described, numerous modifications come to mind without significantly departing from the spirit of the invention and the scope of protection is only limited by the scope of the accompanying claims. This design is just one example of a pattern design having these favorable characteristics, and disclosure of it is merely one example of a design having its favorable characteristics, others of which are not significant departures from the spirit of the invention.
TECHIrTICAL F1EM
The prseut invention relates gonerally to a flexible plastic container and more particuiarly to a flesdble coaCainer for dnwting a flowable matetial comtaned fherem to a frtment of the contdna and dispensing di6 flowable mataial.
: . ~
Collapsi'ble plastic bags are often used to store liquid products such as chemicals, soft dtink syri#p, frait juices and food condmmnts. The plastie bags are typically housed in a conugated paperboard box to aid in the tramsporting, bandliqg and dispmsing of the product Such packaging systems are commonly refeaed to as "bag-in box" paclmging systms.
The plastic bags typicslly have sidewalls sealed along a pesipheorat seam to clefune a fluid eontaining chamber. A spoui or a fitnent provides access to the fluid chamber for filling and dispeosug the product witbin the bag. Vacuum pump systems are sometimes eonaected to the caatainer to assist in dreining fluid from the container.
- Both gravity dispming bags and vacuum pump systems saffor from the common drawbacac that fluid may become ttapped within the folds of the bag dnring ;draining.
Beeause of tliis, evacuation cheumels are often placed witbin the bag.
Bvacuation chaanels are typically elongate cylindrical tubes or flat stiips with protruding ribs defining grooves. Typieslly, one end of the evacuation channel is disposed transverse to, or is ceamected to the spout, and the other end of the evacuation channel extends into the fluid containing chamber of the bag. As the bag is emptied by the foree of the vacuum pump, or by the force of gravity, portions of the bag oollapse unevenly, tending to leave pockets of product, typically liquid, which may become isolated from the rest of the liquid in the container. The evacuation cliamiel, however, forins a conduit which camzot be closed off by the folds created in the bag. In this manner the entire chainber of the flexible bag remains in comnlunication with the spout at all times during the dispensing such that all product within the bag can be removed.
Prior atteinpts to provide such bags are disclosed in U.S. Patent Nos.
4,601,410; 5,647,511 and 5,749,493. United States Patent Nos. 4,601,410 and 5,647,511 disclose a liquid container with an evacuation unit. In both the '410 and '511 patents, the evacuation unit is shown attached directly to the spout by a mounting ring. Several problems have been encountered with these types of evacuation units.
For example, during the filling process, wliich is typically done in a high speed and higli pressure process, the evacuation unit is susceptible of being dislodged from the spout tllereby rendering the evacuation unit inoperative. Also, the attaching ring can impede the flow of liquid during the filling process thereby slowing the filling process.
United States Patent No. 5,749,493 discloses an evacuation unit positioned within a bag and transverse and perpendicular to a spout in the bag. Because the evacuation unit is positioned in a location that is in line with the incoming fluid during the filling process, it is susceptible of being dislodged from its inounting to the container thereby rendering it ineffective. The '493 Patent also discloses extntding a pair of ribs or a single rib or protuberance extending the lengtll of the container.
Many of the designs which utilize an evacuation unit positioned within the bag require that the unit be placed into the bag after the bag has been substantially constnicted. This is highly undesirable because it adds anotlier step to the manufacturing process and increases the labor costs.
United States Patent No. Re. 34,929 discloses a plastic bag having interconnected air chaiulels on its iiuler surface for the vacuunl packaging of perishable items. The air channels are foi7ned by the spaces between a plurality of raised protuberances having ttnifonm tliiclazess and formed in a generally regular and waffle-like patteni. The protuberances prevent the total collapse of the bag during air evacuation. There is no disclosure to utilize a fitment to provide access to the contents of the container. There is also no disclosure of removing the stored contents of the bag, but, rather only removing air from the paclcage to prevent spoilage of the perishable item contained therein.
United States Patent No. 2,778,171 discloses the production of airtight packages for paclcaging perishable items such as food. Projections are provided near an opening of the airtight package for keeping sidewalls of the container from fully collapsing against one another while air is being evacuated from the container. There is no disclosure of evacuating a stored product from the container and no disclosure of providing a fitment with the bag to provide access to the stored contents.
United States Patent No. 5,728,086 discloses a flexible container having multiple access ports and particularly discloses a container for storing fluids for parenteral administration to a patient. An imler surface of a sidewall of the container can have various pattenls einbossed tliereon to assist in draining the contents of the container.
SUMMARY OF THE INVENTION
The present invention provides a flexible polyineric container for storing and dispensing liquids. The container has a first sidewall and a second sidewall comiected togetlier to define a fluid chamber therebetween. The first sidewall and the second sidewall each have an inner surface facing the fluid chainber and an opposed outer surface. A fitment is attached to an otiter surface of one of the first sidewall or the second sidewall, the fitment having an opening therethrough having an axis substantially perpendicular to the outer surface. A plurality of objects are positioned on the inner surface of one of the first sidewall or the second sidewall to define a plurality of pathways having at least a first pathway and a second pathway intersecting one another.
The present invention further provides a flexible polymeric container for storing and dispensing liquids. The container has a first sidewall and a second sidewall connected together to define a fluid chamber therebetween, the first sidewall and the second sidewall each having an iiuier sttrface facing the fluid chainber and an opposed outer surface and an access member for accessing the fluid chamber. A
plurality of a first set of objects having a first shape is positioned on the iimer surface of one of the first sidewall or the second sidewall. A plurality of a second set of objects having a second shape different from the first shape is positioned on the iimer surface of one of the first sidewall or the second sidewall.
The present invention further provides a method for evacuating a fluid from a container. The method includes the steps of: (1) providing a liquid filled container having a sidewall having an inner surface and an outer surface, (2) providing a plurality of objects on the inner surface of the sidewall to define a plurality of pathways having at least a first channel and a second channel intersecting one another; (3) providing a fitment attached to the outer surface, the fitment having an opening therethrough having an axis substantially perpendicular to the outer surface; and (4) applying a suction to the fitment to draw fluid from the container.
In accordance with an aspect of the present invention, there is provided a flexible polymeric container for storing and dispensing liquids comprising: a first sidewall and a second sidewall connected together to define a fluid chamber therebetween, the first sidewall and the second sidewall each having an inner surface facing the fluid chamber and an opposed outer surface; a fitment attached to the outer surface of one of the first sidewall or the second sidewall, the fitment having an opening therethrough having an axis substantially perpendicular to the outer surface; and a plurality of objects on the inner surface of one of the first sidewall or the second sidewall, the objects including a first set of objects with a first shape and a second set of object with a second shape different from the first shape to define a pattern of a plurality of pathways having at least a first pathway and a second pathway intersecting one another.
In accordance with another aspect of the present invention, there is provided a flexible polymeric container for storing and dispensing liquids comprising:
a first sidewall and a second sidewall connected together to define a fluid chamber therebetween, the first sidewall and the second sidewall each having an inner surface facing the fluid chamber and an opposed outer surface; an access member for accessing the fluid chamber; and a plurality of a first set of objects having a first shape on the inner surface of one of the first sidewall or the second sidewall; and a plurality of a second set of objects having a second shape different from the first shape and positioned on the inner surface of the first sidewall or the second sidewall wherein the first set of objects and the second set of objects define a pattern of a plurality of pathways.
In accordance with another aspect of the present invention, there is provided a method for evacuating a fluid from a container comprising the steps of providing a liquid filled container having a sidewall having an inner surface providing a plurality of -4a-objects on the inner surface of the sidewall the objects including a first set of objects with a first shape and a second set of objects with a second shape different from the first shape to define a plurality of channels having at least a first channel and a second channel intersecting one another; providing a fitment attached to an outer surface of the sidewall, the fitment having an opening therethrough having an axis substantially perpendicular to the outer surface; and applying a suction to the fitment to draw fluid from the container.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a perspective view of a container having a fitment;
Fig. 2 is a side view of the container of Fig. 1;
Fig. 3 is a sidewall of the container of Fig. 1 having objects having varying shapes;
Fig. 4 is a sidewall of the container of Fig. 1 having a plurality of regularly spaced rectangular protuberances to define a checkerboard pattern; and Fig. 5 is a sidewall having circular protuberances together forming a circular pattern with a series of X-shaped protuberances forming S-shaped lines.
DETAILED DESCRIPTION
While this invention is susceptible of embodiment in many different forms, herein will be described in detail with the accompanying figures, a preferred embodiment of the invention. The present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the broad aspect of the invention to the embodiments illustrated and described.
Figures 1 and 2 show a flexible container assembly 10 having a first sidewall and a second sidewall 13 attached at peripheral edges 14 to define a fluid tight chamber 16. A spout 18 is attached to an outer surface of the sidewall 12 and provides fluid flow access to the chamber 16. In a preferred form of the invention, the first and second sidewalls 12 and 13 are a flexible polymeric material having a modulus of elasticity of less than 50,000 psi. The sidewalls preferably are made from materials such as homopolymers and copolymers of polyolefins, polyamides, polyesters or other material that are capable of being sealed using industry standard sealing techniques. These techniques include, but are not limited to, heat sealing, radio frequency welding, and ultrasonic sealing. The sidewalls may be multilayered or single layered and may be fabricated from any suitable polymer processing technology including extrusion, coextrusion, extrusion lamination, lamination or other. The container can be made from individual sheets placed in registration and sealed along the periphery 14 or can be made from a blown film process where only opposing ends of a tube need be sealed to complete the container 10.
Figure 3 shows a plurality of objects 20 on the sidewall 12. The objects 20 can be positioned on a single sidewall or both. The objects, in a preferred form of the invention, are provided over an entire surface of the sidewall but could be provided only in select areas of the surface. Providing objects over the entire sidewall surface eliminates the need for registration of the sidewalls. Moreover, providing objects over the entire surface ensures that fluid is evacuated from all parts of the container, including corner regions.
The objects can be of any shape including regular shapes such as circular, polygonal, straight or curved lines, symbols or the like. The objects can also be irregular shaped. These objects 20 assist in draining fluid from the chamber 16. The objects 20 can be raised protuberances or indentations in these shapes.
The objects can be all of the same shapes or be of a combination of shapes.
The objects 20 on the sidewall 12 provides an advantage over prior art containers having an evacuation unit positioned within and attached to an inside surface of the container. The evacuation unit is typically made from a polymer material, and is heat sealed or welded to the inside of the container.
The weld area, in such containers, contacts the contents of the container. The weld area may have an undesired organoleptic effect on the container contents. Providing objects directly on the sidewall as disclosed herein eliminates any organoleptic residue arising from heat sealing the evacuation unit in the container. Moreover, the evacuation unit is typically a rigid member. The present invention eliminates the rigid member resulting in a bag having a thimier profile, thereby reducing shipping and storage volume. Also, the rigid member type evacuation unit is not entirely effective in evacuating fluid froin coiners of the container. The present invention removes fluid that would otherwise remain in the corners.
The objects 20 can form a regular pattem or an irregular pattern. The regular pattern includes objects being placed at the same or essentially the same spacing or a repeating sequence of spacings. The iiTegular pattem is one where the objects are generally randomly distributed.
In a preferred foml of the invention as shown in Figure 4, a regularly spaced pattem of rectangular-shaped objects 30 having pathways 32 defined therebetween.
This checlcerboard pattern has at least a first patllway 33 intersecting a second pathway 34. In a preferred fonn of the invention the pathways intersect at stibstantially perpendicular to one another. However, it is contemplated the intersection of pathways 32 can foi7il various angles without departing from the present invention.
Figure 5 shows another preferTed fonn of the invention having a series of circular protuberances 40 together with X-shaped protuberances 44. The circular protuberances 40 define a circular shape 42. The X-shaped protuberances 44 define a S-shaped pattern 46. Of course it is contemplated that any combination of shapes of protuberances can be used and that more than two different shapes can be used.
The present invention further conteinplates that the individual protuberances can forin varying indicia such as a trademark, tradenaine, logo, instnictions for use or other identifying or useftil inforination or advertising that can be viewed tluough the sidewall 12 or 14 or both.
The objects can be fomled on the imier surface of sidewall 12 or sidewall 14 or both by techniques well lcnown in the art including einbossing during the fabrication of the sidewall, or embossing afterwards. The pattem can also be applied by an extnzsion coating process or similar process. The objects can be pressed into the sidewalls witll a shaped die. Nttmerous other mechanisms and processes come to mind for forming the objects which are well known in the art and the present invention should not be limited to these processes recited. The pathways 32 and 33 of the pattem are preferably of a depth of greater than or equal to 1 mil, or less than 8 mils, and even more preferably less than 5 mils. Most preferably, the pathways 32 and 33 will have a depth of from about lmil to about 4 mils for fluids having the viscosity of a soft drink syrup.
The fitment 18 has an opening 50 having an axis essentially perpendicular to a panel surface of sidewall 12 of the container. It is contemplated the fitment 18 can be mounted at various angles to the sidewall without departing from the present invention. The fitment 18 provides fluid access to the contents of the chamber 16. Typically, container 10 is used for housing liquids such as soft drink syrup which are withdrawn from the container with a hose and mixed at a fountain with a diluent such as soda water. The hose (not shown) has an attachment for connecting to the fitment in a fluid and airtight arrangement. A vacuum is applied to the fitment 18 through the hose to withdraw fluid from the container. The vacuum creates a pressure difference to initiate a fluid flow. Of course, the fitment 18 may be attached to the first or second sidewall 12, 13 or both and may be located at any location thereon.
The present invention further provides a process for evacuating the container shown in Figure 1. The method for evacuating a fluid from a container comprises the steps of: (1) providing a liquid filled container having a sidewall having an inner surface; (2) providing a plurality of objects on the inner surface of the sidewall to define a plurality of channels having at least a first channel and a second channel intersecting one another; (3) providing a fitment attached to an outer surface of the sidewall, the fitment having an opening therethrough having an axis substantially perpendicular to the outer surface; and (4) applying a suction to the fitment to draw fluid from the container.
While the specific embodiments have been described, numerous modifications come to mind without significantly departing from the spirit of the invention and the scope of protection is only limited by the scope of the accompanying claims. This design is just one example of a pattern design having these favorable characteristics, and disclosure of it is merely one example of a design having its favorable characteristics, others of which are not significant departures from the spirit of the invention.
Claims (22)
1. A flexible polymeric container for storing and dispensing liquids comprising:
a first sidewall and a second sidewall connected together to define a fluid chamber therebetween, the first sidewall and the second sidewall each having an inner surface facing the fluid chamber and an opposed outer surface;
a fitment attached to the outer surface of one of the first sidewall or the second sidewall, the fitment having an opening therethrough having an axis substantially perpendicular to the outer surface; and a plurality of objects on the inner surface of one of the first sidewall or the second sidewall, the objects including a first set of objects with a first shape and a second set of object with a second shape different from the first shape to define a pattern of a plurality of pathways having at least a first pathway and a second pathway intersecting one another.
a first sidewall and a second sidewall connected together to define a fluid chamber therebetween, the first sidewall and the second sidewall each having an inner surface facing the fluid chamber and an opposed outer surface;
a fitment attached to the outer surface of one of the first sidewall or the second sidewall, the fitment having an opening therethrough having an axis substantially perpendicular to the outer surface; and a plurality of objects on the inner surface of one of the first sidewall or the second sidewall, the objects including a first set of objects with a first shape and a second set of object with a second shape different from the first shape to define a pattern of a plurality of pathways having at least a first pathway and a second pathway intersecting one another.
2. The container of claim 1 wherein the pattern is generally a checkerboard pattern.
3. The container of claim 1 wherein the pattern is defined by a series of spaced protuberances.
4. The container of claim 3 wherein the protuberances have a generally circular shape.
5. The container of claim 3 wherein the protuberances have a polygonal shape.
6. The container of claim 3 wherein the protuberances have an irregular shape.
7. The container of claim 3 wherein the protuberances are generally S-shaped.
8. The container of claim 7 wherein the S-shaped protuberances extend from a first end of the container to a second end of the container.
9. The container of claim 1 wherein the pattern extends over an entire surface of the first sidewall or the second sidewall.
10. The container of claim 1 wherein the plurality of pathways are of a depth of greater than 1 mil.
11. The container of claim 1 wherein the plurality of pathways are of a depth of less than 5 mils.
12. The container of claim 1 wherein the plurality of pathways are of a depth of a range of 1 mil to 4 mils.
13. The container of claim 1 wherein the container does not impart organoleptic properties to the stored liquids.
14. A flexible polymeric container for storing and dispensing liquids comprising:
a first sidewall and a second sidewall connected together to define a fluid chamber therebetween, the first sidewall and the second sidewall each having an inner surface facing the fluid chamber and an opposed outer surface;
an access member for accessing the fluid chamber; and a plurality of a first set of objects having a first shape on the inner surface of one of the first sidewall or the second sidewall; and a plurality of a second set of objects having a second shape different from the first shape and positioned on the inner surface of the first sidewall or the second sidewall wherein the first set of objects and the second set of objects define a pattern of a plurality of pathways.
a first sidewall and a second sidewall connected together to define a fluid chamber therebetween, the first sidewall and the second sidewall each having an inner surface facing the fluid chamber and an opposed outer surface;
an access member for accessing the fluid chamber; and a plurality of a first set of objects having a first shape on the inner surface of one of the first sidewall or the second sidewall; and a plurality of a second set of objects having a second shape different from the first shape and positioned on the inner surface of the first sidewall or the second sidewall wherein the first set of objects and the second set of objects define a pattern of a plurality of pathways.
15. The container of claim 14 wherein the first set of objects and the second set of objects are on the same sidewall.
16. The container of claim 14 wherein the first set of objects is a plurality of spaced protuberances.
17. The container of claim 14 wherein the access member is a fitment attached to an outer surface of the first sidewall or the second sidewall.
18. The container of claim 14 wherein the fitment has an opening with an axis substantially perpendicular to the sidewall.
19. The container of claim 14 wherein the first set of objects and second set of objects extend over the entire inner surface of the first sidewall or second sidewall.
20. The container of claim 14 wherein the container does not impart organoleptic properties to the liquids.
21. A method for evacuating a fluid from a container comprising the steps of:
providing a liquid filled container having a sidewall having an inner surface providing a plurality of objects on the inner surface of the sidewall the objects including a first set of objects with a first shape and a second set of objects with a second shape different from the first shape to define a plurality of channels having at least a first channel and a second channel intersecting one another;
providing a fitment attached to an outer surface of the sidewall, the fitment having an opening therethrough having an axis substantially perpendicular to the outer surface; and applying a suction to the fitment to draw fluid from the container.
providing a liquid filled container having a sidewall having an inner surface providing a plurality of objects on the inner surface of the sidewall the objects including a first set of objects with a first shape and a second set of objects with a second shape different from the first shape to define a plurality of channels having at least a first channel and a second channel intersecting one another;
providing a fitment attached to an outer surface of the sidewall, the fitment having an opening therethrough having an axis substantially perpendicular to the outer surface; and applying a suction to the fitment to draw fluid from the container.
22. The method of claim 21 wherein in the step of applying suction to draw fluid from the container, the fluid is substantially completely drawn from the container.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33246301P | 2001-11-09 | 2001-11-09 | |
| US60/332,463 | 2001-11-09 | ||
| US10/037,295 US6715644B2 (en) | 2001-11-09 | 2001-12-21 | Flexible plastic container |
| US10/037,295 | 2001-12-21 | ||
| US10/291,344 | 2002-11-08 | ||
| US10/291,344 US20030136798A1 (en) | 2001-11-09 | 2002-11-08 | Flexible plastic container |
| PCT/US2002/036174 WO2003039983A1 (en) | 2001-11-09 | 2002-11-12 | Flexible plastic container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2466182A1 CA2466182A1 (en) | 2003-05-15 |
| CA2466182C true CA2466182C (en) | 2010-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002466182A Expired - Fee Related CA2466182C (en) | 2001-11-09 | 2002-11-12 | Flexible plastic container |
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| US (1) | US20030136798A1 (en) |
| EP (1) | EP1453737B8 (en) |
| JP (1) | JP4231904B2 (en) |
| CN (1) | CN100400392C (en) |
| AT (1) | ATE531643T1 (en) |
| AU (1) | AU2002359380B2 (en) |
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| MX (1) | MXPA04004438A (en) |
| NZ (1) | NZ533364A (en) |
| PT (1) | PT1453737E (en) |
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| US4322020A (en) * | 1978-05-02 | 1982-03-30 | Raymond Stone | Invertible pump sprayer |
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| IT1100746B (en) * | 1978-12-18 | 1985-09-28 | Safta Spa | FLAT FLEXIBLE CONTAINERS AND RELATED VALVES, AND PROCEDURE AND EQUIPMENT FOR THEIR MANUFACTURE IN ABSOLUTELY STERILE CONDITIONS |
| US4258863A (en) * | 1979-01-08 | 1981-03-31 | Ness Richard A | Flexible dispensing container having internal container wall rupturing means |
| US4284671A (en) * | 1979-05-11 | 1981-08-18 | Clopay Corporation | Polyester compositions for gas and moisture barrier materials |
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| ZA874580B (en) * | 1986-07-04 | 1988-01-04 | ||
| US4935283A (en) * | 1987-01-02 | 1990-06-19 | Jamison Mark D | Comestible pouch material having preformed spout zone |
| US5385564A (en) * | 1992-10-05 | 1995-01-31 | Fresenius Usa, Inc. | System for preparation and use of dialysis solution |
| US5497911A (en) * | 1994-09-02 | 1996-03-12 | Ellion; M. Edmund | Hand-held universal dispensing container which operates regardless of its orientation |
| US5728086A (en) * | 1996-07-30 | 1998-03-17 | Bracco Diagnostics, Inc. | Universal flexible plastic container with multiple access ports |
| US5915596A (en) * | 1997-09-09 | 1999-06-29 | The Coca-Cola Company | Disposable liquid containing and dispensing package and method for its manufacture |
| US6073807A (en) * | 1998-11-18 | 2000-06-13 | Packaging Systems, Inc. | Flexible container with evacuation form insert |
| WO2001036276A2 (en) * | 1999-11-10 | 2001-05-25 | Scholle Corporation | Collapsible bag for dispensing liquids and method |
-
2002
- 2002-11-08 US US10/291,344 patent/US20030136798A1/en not_active Abandoned
- 2002-11-12 JP JP2003542041A patent/JP4231904B2/en not_active Expired - Fee Related
- 2002-11-12 EP EP02793913A patent/EP1453737B8/en not_active Expired - Lifetime
- 2002-11-12 CN CNB028245784A patent/CN100400392C/en not_active Expired - Fee Related
- 2002-11-12 ES ES02793913T patent/ES2395015T3/en not_active Expired - Lifetime
- 2002-11-12 BR BRPI0214010-1B1A patent/BR0214010B1/en not_active IP Right Cessation
- 2002-11-12 PT PT02793913T patent/PT1453737E/en unknown
- 2002-11-12 MX MXPA04004438A patent/MXPA04004438A/en active IP Right Grant
- 2002-11-12 NZ NZ533364A patent/NZ533364A/en not_active IP Right Cessation
- 2002-11-12 AU AU2002359380A patent/AU2002359380B2/en not_active Ceased
- 2002-11-12 CA CA002466182A patent/CA2466182C/en not_active Expired - Fee Related
- 2002-11-12 AT AT02793913T patent/ATE531643T1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| PT1453737E (en) | 2012-01-09 |
| AU2002359380B2 (en) | 2009-02-05 |
| BR0214010A (en) | 2004-10-13 |
| CA2466182A1 (en) | 2003-05-15 |
| BR0214010B1 (en) | 2013-11-19 |
| EP1453737A1 (en) | 2004-09-08 |
| JP2005523844A (en) | 2005-08-11 |
| EP1453737B1 (en) | 2011-11-02 |
| CN100400392C (en) | 2008-07-09 |
| EP1453737B8 (en) | 2012-02-29 |
| EP1453737A4 (en) | 2008-07-23 |
| JP4231904B2 (en) | 2009-03-04 |
| NZ533364A (en) | 2006-02-24 |
| US20030136798A1 (en) | 2003-07-24 |
| ATE531643T1 (en) | 2011-11-15 |
| MXPA04004438A (en) | 2005-03-31 |
| ES2395015T3 (en) | 2013-02-07 |
| CN1602271A (en) | 2005-03-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20151112 |