US20160083166A1 - Heat sealing on multiple angled container flanges - Google Patents
Heat sealing on multiple angled container flanges Download PDFInfo
- Publication number
- US20160083166A1 US20160083166A1 US14/889,157 US201414889157A US2016083166A1 US 20160083166 A1 US20160083166 A1 US 20160083166A1 US 201414889157 A US201414889157 A US 201414889157A US 2016083166 A1 US2016083166 A1 US 2016083166A1
- Authority
- US
- United States
- Prior art keywords
- container
- flange
- closure member
- sealing
- angled surfaces
- 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
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Images
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
- B65D77/10—Container closures formed after filling
- B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
- B65D77/2024—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being welded or adhered to the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
- B65B51/10—Applying or generating heat or pressure or combinations thereof
Definitions
- the angled surfaces 18 , 28 , 36 , 46 and 72 may form a small or large angle with the vertical.
- a useable range would be on the order of about live degrees to about sixty degrees, with a preferred range on the order of about 15 degrees to about 60 degrees.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closing Of Containers (AREA)
- Closures For Containers (AREA)
Abstract
A container (10, 64) for food and non-food products, the container including a circumferential flange (12, 22, 32, 40, 66) extending around the container, the flange including a plurality of angled surfaces (14, 16, 18; 24, 26, 28, 30; 34, 36, 38, 42, 44, 46; 68, 70, 72: 76, 77, 78) formed in the flange, and a closure member adhered to the plurality of angled surfaces for hermetically sealing said container. Also, a method for sealing containers for food and non-food products, wherein the method includes the steps of: a.) providing a container (10, 64 ) having a circumferential flange (42, 22, . . . ). b.) forming a plurality of angled surfaces (14, 16, 18; . . . ) in the circumferential flange extending about the circumference of the container, c.) placing a closure member (20, 74) over the circumferential flange, d.) supporting the flange and the closure member in a nest (52, 56): e.) and applying at least one heated anvil to the closure member for causing the closure member to conform to and adhere to the plurality of angled surfaces in the circumferential flange.
Description
- There are two well accepted ways to heat seal lids or end panels onto containers for solid, liquid, or combination products for food and other products. Typical, containers may be in the form of annular cans that are circular in cross section, or may be oval shaped container's usually referred to as tubs, or may be bottles of metal, glass or blow molded plastic. One sealing process uses induction heating, and the second heating process uses heated anvils or sealing heads. Both processes arc used frequently, and both could have either internal or external flanges serving as sealing surfaces on the container.
- A considerable amount of prior art in this field is shown in my earlier U.S. application Ser. No. 11/362,008, now abandoned, and patents to Helms (U.S. Pat. No. 5,991,334) and Ramsey (U.S. Pat. No. 5,723,129), which deal with external flanges and internal flanges and in all cases only one sealing surface is described.
- An internal lacing flange can most likely occur on a blow molded package such as a bottle. Most such bottles have external threads or snap rings and a foil or film is heat sealed to the top edge of the finish or a flange. The closure, i.e., lid or end panel, provides tamper evidence and/or an oxygen barrier. The structural work, augmenting the seal and holding the foil or film in place during the filling process, vacuum, or pressure, or drop impact, is done by the closure.
- For “internal flanges” using the sealing concept, disclosed herein, creates a strong, peelable seal, performs all of the functions required and may, or may not utilize a “dust cover” or a reclosing, additional lid. The net result is a desirable material saving in the flange (no threads and a shorter height), a lower cost closure, and an improved peelable seal.
- For “external flanges”, the present invention utilizes a plurality of three or more sealing surfaces which provide strong benefits for closing and sealing containers.
- In addition, the invention provides a container and closure member having increased burst strength, and improved resistance to failure under pressure and vacuum conditions resulting from retorting of the product.
- Depending upon the flange angles, the foil or film closure member may be preformed, or is reformed by the complementary shaped angles on the heat sealing tool and tool nest in order to prevent wrinkling when the closure member is placed over the container flange and beat sealed thereto.
-
FIG. 1 illustrates a container utilizing a closure member in accord with the invention. -
FIGS. 2-5 illustrate fragmentary profiles of containers having outwardly extending external flanges. -
FIGS. 6 and 7 show tooling for affixing foil or films to external flanges. -
FIG. 8 illustrates tooling for affixing foils or film to containers having an inwardly and upwardly extending flange. -
FIG. 1 illustrates a container, generally indicated by thenumeral 10, for utilizing a closures member in accord with the invention. - In
FIG. 2 an outwardly extendingflange 12 of a container includes a firsthorizontal sealing surface 14, a secondhorizontal sealing surface 16 and a third sealing surface comprised of an outwardly and downwardly angled sealing surface 18 for placing a foil or film closure member 20 (shown inFIGS. 6 and 7 ) in shear, rather than in peel. - In
FIG. 3 an outwardly extendingflange 22 of a container includes a first horizontal sealing surface 24, a second horizontal sealing surface 26 arid an outwardly and downwardly angled sealing surface 28 for placing a foil or film closure 20 (shown inFIGS. 6 and 7 ) in shear rather than in peel.Flange 22 also includes aperipheral lip 30 that assists in peeling the closure when opening thecontainer 10. - In
FIG. 4 an outwardly extending flange 32 of a container includes a first horizontal sealing surface 34, an outwardly and downwardly angled sealing surface 38, and a second angled surface 38 forming a slightly less angle than that formed by sealing surface 36 for placing a foil or film closure 20 (shown inFIGS. 6 and 7 ) in shear rather than peel. - In
FIG. 5 an outwardly extending flange 40 of a metal container 100 includes a first horizontal sealing surface 42, a second horizontal sealing surface 44 and an outwardly and downwardly angled sealing surface 46 for placing a foil or film closure member 20 (shown inFIGS. 6 and 7 ) in shear. A reversely turned peripheral edge 48 is provided for protecting the user from a sharp metal, edges -
FIG. 6 illustrates aheat seal tool 50 and a nest 52 for heat sealing a foil or film closure to a plastic container having aflange 22 as is shown inFIG. 3 . -
FIG. 7 illustrates a heat seal tool 54 and a nest 56 for heat scaling a foil or film closure to a plastic container having aflange 12 as is shown inFIG. 2 . Nest 56 differs from nest 52 by having an uppermost,horizontal surface 58. -
FIG. 8 illustrates a sectional view of a heat tool 60 and asupport ring 62 that, encircles a blow moldedbottle 64 having a flange 66 extending inwardly toward a center line C/L of thecontainer 64. Flange 66 includes a first horizontal sealing surface 68, a secondhorizontal sealing surface 70 and an upwardly angledsealing surface 72 for placing a roil orfilm closure member 74 in shear rather than in peel. The foil is provided with an heat activatedadhesive layer 75. - The foil or
film closure members - The various flanges include an uppermost
horizontal flange 14, 24, or 34. These horizontal surfaces add stability, stiffness to support the flange during sealing, and a vertical stop for the downstroke of the heat conduction tool. - Additionally, the outermost
horizontal angles - The
angled surfaces 18, 28, 36, 46 and 72 may form a small or large angle with the vertical. A useable range would be on the order of about live degrees to about sixty degrees, with a preferred range on the order of about 15 degrees to about 60 degrees. - The benefit of the foregoing invention and embodiments thereof will be readily apparent from a consideration of the following test data comparing container closures that have been heat sealed in shear, and current prior art processes that attach closures in a horizontal, flat plane.
- Bursts Tests: Heat Seal in Shear (Angled) vs. Peel (Flat)
- 307 Diameter Plastic Bowls with Sealing Film Heat Sealed to the Flange
- Standard Plant Air
- Test Results:**
-
Pounds per Square Inch (PSI) Variable Flange Angle Average Burst Burst Range Flat (Control) 26 18-32 30 Degree Angle 45 41-55 45 Degree Angle 56 53-65
**Note: In the same tests, aluminum EZO ends (Easy Open Ends) Buckle or fail in the 40-45 psi range. - It is to be understood that the methods and embodiments disclosed herein are meant to be exemplary, and various modifications may be made within the scope of the appended claims.
Claims (16)
1. A method for sealing containers for food and non-food products, said method including the steps of:
a.) providing a container (10, 64) having a circumferential flange (12, 22, 32, 40, 66),
b.) forming a plurality of at least three angled surfaces (14, 16, 18; 24, 26, 28, 50; 34, 36, 38; 42, 44, 46; 68, 70, 72; 76, 77, 78) in said circumferential flange extending about the circumference of said container,
c.) placing a closure member (20, 74) over said circumferential flange,
d.) supporting said flange and said closure member in a nest (52, 56);
e.) and applying a heated anvil to said closure member for causing said closure member to adhere to said plurality of angled surfaces in said circumferential flange.
2. The method as defined in claim 1 wherein said closure member includes heat activated adhesive on a surface facing said circumferential flange.
3. The method as defined in claim 1 wherein said closure member is comprised of heat sensitive thermoplastic.
4. The method as defined in claim 1 wherein said closure member is comprised of metal foil and an adhesive layer on a side thereof facing said flange.
5. The method as defined in claim 1 wherein said annular flange extends outwardly of said container.
6. The method as defined in claim 1 wherein said annular flange extends inwardly of said container.
7. A container for food and non-food, products, said container (10, 64) including an annular flange (12, 22, 32, 40, 66) circumscribing said container, said flange including a plurality of at least three angled surfaces (14, 16, 18; 24, 26, 28, 30; 34, 36, 38; 42, 44, 46; 68, 70, 72; 76, 77, 78) formed in said flange,
and a closure member (20, 74) adhered to said plurality of angled surfaces for hermetically sealing said container.
8. The container as defined in claim 7 wherein said flange (40) is made of metal and an outer periphery of said flange is folded back upon itself to eliminate an outermost raw edge.
9. The container as defined in claim 7 wherein said flange extends outwardly of said container.
10. The container as defined in claim 7 wherein said flange extends radially inwardly of said container.
11. The container as defined in claim 7 wherein said closure member is metal foil and includes an heat sensitive material on a side thereof facing said flange.
12. The container as defined in claim 7 wherein said closure member is comprised of a thermoplastic material.
13. The container as defined in claim 7 wherein said closure member is preformed for conforming to said angled surfaces in said annular flange.
14. A combination comprising a container, said container having a plurality of circumferential extending angular flanges formed therein adjacent an open end thereof for providing sealing surfaces, a closure member for closing said open end, and one or more heat sealing tools having angles formed therein, complementary to said sealing surfaces.
15. The combination defined in claim 14 wherein said closure member includes preformed angular sealing surfaces complementary with said container angular flanges and said angles in said heat sealing tool.
16. The method as defined in claim 1 including the step of causing said closure member to conform to said plurality of angled surfaces in said circumferential flange during the step of applying said heated anvil to said closure member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/889,157 US20160083166A1 (en) | 2013-05-06 | 2014-05-06 | Heat sealing on multiple angled container flanges |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361855007P | 2013-05-06 | 2013-05-06 | |
US14/889,157 US20160083166A1 (en) | 2013-05-06 | 2014-05-06 | Heat sealing on multiple angled container flanges |
PCT/US2014/037003 WO2014182722A1 (en) | 2013-05-06 | 2014-05-06 | Heat sealing on multiple angled container flanges |
Publications (1)
Publication Number | Publication Date |
---|---|
US20160083166A1 true US20160083166A1 (en) | 2016-03-24 |
Family
ID=51867693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/889,157 Abandoned US20160083166A1 (en) | 2013-05-06 | 2014-05-06 | Heat sealing on multiple angled container flanges |
Country Status (4)
Country | Link |
---|---|
US (1) | US20160083166A1 (en) |
EP (1) | EP2994388A1 (en) |
CA (1) | CA2911517A1 (en) |
WO (1) | WO2014182722A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10479550B2 (en) | 2012-03-26 | 2019-11-19 | Kraft Foods R & D, Inc. | Packaging and method of opening |
US10507970B2 (en) | 2013-03-07 | 2019-12-17 | Mondelez Uk R&D Limited | Confectionery packaging and method of opening |
US10513388B2 (en) | 2013-03-07 | 2019-12-24 | Mondelez Uk R&D Limited | Packaging and method of opening |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2848277T3 (en) | 2013-12-05 | 2021-08-06 | 3M Innovative Properties Co | Container for spraying device |
US10689165B2 (en) | 2016-01-15 | 2020-06-23 | 3M Innovative Properties Company | Reservoir systems for hand-held spray guns and methods of use |
AU2017207361B2 (en) | 2016-01-15 | 2019-10-31 | 3M Innovative Properties Company | Connector system for hand-held spray guns |
WO2017123709A1 (en) | 2016-01-15 | 2017-07-20 | 3M Innovative Properties Company | Spray gun cups, receptacles, lids, and methods of use |
AU2017207351B2 (en) | 2016-01-15 | 2019-10-31 | 3M Innovative Properties Company | Modular spray gun lid assemblies and methods of design and use |
EP3402604B1 (en) | 2016-01-15 | 2021-03-03 | 3M Innovative Properties Company | Wide-mouthed fluid connector for hand-held spray guns |
USD804613S1 (en) | 2016-12-12 | 2017-12-05 | 3M Innovative Properties Company | Spray gun nozzle |
USD813985S1 (en) | 2016-12-12 | 2018-03-27 | 3M Innovative Properties Company | Spray gun liquid containment device |
USD804614S1 (en) | 2016-12-12 | 2017-12-05 | 3M Innovative Properties Company | Adaptor for securing liquid containment device to spray gun |
USD810869S1 (en) | 2016-12-12 | 2018-02-20 | 3M Innovative Properties Company | Spray gun liquid containment device |
USD810864S1 (en) | 2016-12-12 | 2018-02-20 | 3M Innovative Properties Company | Spray gun liquid containment device |
USD810870S1 (en) | 2016-12-12 | 2018-02-20 | 3M Innovative Properties Company | Shaker core |
USD833571S1 (en) | 2016-12-12 | 2018-11-13 | 3M Innovative Properties Company | Spray gun |
USD810868S1 (en) | 2016-12-12 | 2018-02-20 | 3M Innovative Properties Company | Spray gun liquid containment device |
USD810867S1 (en) | 2016-12-12 | 2018-02-20 | 3M Innovative Properties Company | Spray gun liquid containment device |
USD815248S1 (en) | 2016-12-12 | 2018-04-10 | 3M Innovative Properties Company | Spray gun liquid containment device |
USD810872S1 (en) | 2016-12-12 | 2018-02-20 | 3M Innovative Properties Company | Shaker core |
USD810871S1 (en) | 2016-12-12 | 2018-02-20 | 3M Innovative Properties Company | Shaker core |
USD810862S1 (en) | 2016-12-12 | 2018-02-20 | 3M Innovative Properties Company | Spray gun liquid containment device |
USD817443S1 (en) | 2016-12-12 | 2018-05-08 | 3M Innovative Properties Company | Spray gun liquid containment device |
USD810863S1 (en) | 2016-12-12 | 2018-02-20 | 3M Innovative Properties Company | Spray gun liquid containment device |
USD810235S1 (en) | 2016-12-12 | 2018-02-13 | 3M Innovative Properties Company | Spray gun liquid containment device |
USD810866S1 (en) | 2016-12-12 | 2018-02-20 | 3M Innovative Properties Company | Spray gun liquid containment device |
USD810865S1 (en) | 2016-12-12 | 2018-02-20 | 3M Innovative Properties Company | Spray gun liquid containment device |
USD812716S1 (en) | 2016-12-12 | 2018-03-13 | 3M Innovative Properties Company | Liquid containment device plug |
WO2019130037A1 (en) * | 2017-12-29 | 2019-07-04 | Compagnie Gervais Danone | Sealing method using a thin flexible lid to hermetically close a wide opening, delimited by an inner flange, of a container, and container with an inner flange |
WO2020136541A1 (en) | 2018-12-27 | 2020-07-02 | 3M Innovative Properties Company | Fluid delivery assembly for a spraying apparatus |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4810541A (en) * | 1987-11-27 | 1989-03-07 | Continental Can Company, Inc. | Plastic container having a surface to which a lid may be peelably sealed |
US5240133A (en) * | 1991-04-15 | 1993-08-31 | James River Paper Company, Inc. | Clamped-wave lid seal structure |
US8052367B2 (en) * | 2004-01-16 | 2011-11-08 | Heyn William M | Angled sealing surface for container end panel |
US7568590B1 (en) * | 2004-11-23 | 2009-08-04 | Arrow Innovations, Llc | Multi-component product container with reclosable top |
WO2009148988A2 (en) * | 2008-06-03 | 2009-12-10 | Valspar Sourcing, Inc. | Easy-open container and container coating |
-
2014
- 2014-05-06 WO PCT/US2014/037003 patent/WO2014182722A1/en active Application Filing
- 2014-05-06 CA CA2911517A patent/CA2911517A1/en not_active Abandoned
- 2014-05-06 EP EP14794178.5A patent/EP2994388A1/en not_active Withdrawn
- 2014-05-06 US US14/889,157 patent/US20160083166A1/en not_active Abandoned
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10479550B2 (en) | 2012-03-26 | 2019-11-19 | Kraft Foods R & D, Inc. | Packaging and method of opening |
US10507970B2 (en) | 2013-03-07 | 2019-12-17 | Mondelez Uk R&D Limited | Confectionery packaging and method of opening |
US10513388B2 (en) | 2013-03-07 | 2019-12-24 | Mondelez Uk R&D Limited | Packaging and method of opening |
Also Published As
Publication number | Publication date |
---|---|
CA2911517A1 (en) | 2014-11-13 |
WO2014182722A1 (en) | 2014-11-13 |
EP2994388A1 (en) | 2016-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |