US20030029015A1 - Method and apparatus for lifting tabs of a laminate from a substrate - Google Patents
Method and apparatus for lifting tabs of a laminate from a substrate Download PDFInfo
- Publication number
- US20030029015A1 US20030029015A1 US10/268,291 US26829102A US2003029015A1 US 20030029015 A1 US20030029015 A1 US 20030029015A1 US 26829102 A US26829102 A US 26829102A US 2003029015 A1 US2003029015 A1 US 2003029015A1
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- US
- United States
- Prior art keywords
- base
- abutment surface
- laminate
- cartridge
- edges
- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
- B67B7/00—Hand- or power-operated devices for opening closed containers
- B67B7/40—Devices for engaging tags, strips, or tongues for opening by tearing, e.g. slotted keys for opening sardine tins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
- B67B7/00—Hand- or power-operated devices for opening closed containers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10S156/934—Apparatus having delaminating means adapted for delaminating a specified article
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/19—Delaminating means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/19—Delaminating means
- Y10T156/1978—Delaminating bending means
- Y10T156/1989—Corner edge bending delaminating means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49815—Disassembling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49815—Disassembling
- Y10T29/49821—Disassembling by altering or destroying work part or connector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49815—Disassembling
- Y10T29/49822—Disassembling by applying force
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
- Y10T29/5147—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53683—Spreading parts apart or separating them from face to face engagement
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
- Closures For Containers (AREA)
Abstract
A method and apparatus for lifting the tabs of a protective seal with edges embedded in a laminate. The base of the device has an annular top having a plurality of cartridge receiving apertures spaced equally from one another. Each hole receives a tab engagement assembly comprising a cartridge, a spring, and a finger have an abutment surface. The finger is pivotally fastened at one end within the slot of the cartridge and is biased away from the cartridge by the spring. When the base is placed in proximate relationship with the laminate seal patch secured to the substrate, the rotating base causes the abutment surfaces of the fingers to drag across the periphery of the laminate seal in a circular motion. The stresses created on the tabs of the protective seal cause the embedded edges to be lifted. The lifted tabs are accessible to the end user and the protective seals may be easily peeled from the substrate when desired by the end user.
Description
- This invention relates generally to the protective seals of material covering container openings, and deals more particularly with an improved method and apparatus for lifting the corners of a protective patch of material used to seal a cartridge type dispenser containing viscous food sauces.
- Protective seals are used in a wide number of containers. Oftentimes, the seals prevent the contents of the container from escaping before the initial use of the product within the container. The seals are generally made from thin, malleable metals such as aluminum. In addition to preventing premature escape of the container's contents, the aluminum patch prevents air and other contaminants from interacting with the contents of the container. Further, the seal may give the user added assurance that no tampering occurred with the contents of container before the initial use. Thus, seals are particularly useful for containers for storing food products and pharmaceuticals which may spoil and are affected by contact with air and various contaminants. Seals may be placed over the openings of containers in a variety of manners. In some instances, the seals may extend beyond the edge of the opening so that the periphery of the protective seals are not in proximity with the surface of the container. For instance, protective seals used to cover the circular openings of aspirin bottles use protective seals which extend somewhat beyond the lip of the opening, but may still allow the cap of the container to be screwed to the bottle. When the cap is removed, the user simply grasps the exposed tabs and pulls the protective seal from the remainder of the bottle. However, for other containers, it is either undesirable or impracticable to have the edges of the protective seal extend beyond the surface of the container.
- One example of such a container is prevalent in the retail food service industry. In fast service restaurants and other retail food establishments, food sauces of various types must be dispensed in a large number of portions each containing a relative small quantity of sauce. Some sauces such as vinegar may be placed in conventional bottles which are compressed by the user to force the contents out of the bottle. However, sauces such as mayonnaise are relatively viscous and are not efficiently and accurately dispensed from bottles formed from flexible materials. It has been found to be convenient to package a wide variety of food sauces in cartridges from which the sauces are dispensed by hand held dispensing guns similar to caulking guns.
- The cartridges used in these dispensing guns typically employ composite discs having disk valves at one end of the cartridge to evenly distribute the sauces when forced by the plunger of the cartridge gun. Likewise, the valves retain the sauces within the cartridge when the plunger of the gun is not actuated. Reference may be made to U.S. Pat. No. 4,830,231 for a more thorough discussion of this type of disk valve. Generally, each composite disc comprises at least one paperboard layer framing the valves formed on a disc valve layer. The disc valve layer is typically made of polyethylene and has a number of slits or similar valves cut into the layer to allow the food sauce to flow from the container. Protective laminate patches comprising thin foil seals are placed over the disc valves of the composite disc substrate to seal the contents of the container. The seals are adhered to the disc valve layer substrate along a circular path at the interior of the edges of the foil laminates. The peripheral edges of protective seals extend beyond the framed PET disc valve layer and terminate at and overlap with the paperboard layer. When the end user wants to open a new container, the user pulls one of the corner tabs of the foil seal from the cartridge disc substrate and peels the protective foil laminate away from the remainder of the container.
- In prior art methods used to manufacture cartridge discs, the foil laminate patches were cut before being adhered to the disc valve. The rectangular laminates were adhered to the paperboard layer of the disc and the tab area between the adhesive connection and the edge of the disc was relatively separated from the disc and easy for the user to grasp. Thus, the seals were easy to remove. The discs were manufactured by one machine and the protective seals were applied on another machine. This required that the discs be moved from the disc formation machine to the seal applicator machine and led to a number of inefficiencies. For instance, the slit valves on disc could become lodged between the tabs and paperboard base of the adjacent disc when the discs were stacked.
- A new manufacturing process was developed in which the foil tab was applied on the cartridge disc formation machine. Essentially, portions of foil from a supply roll are adhered to the upper surface of the cartridge disc after the composite disc is formed. The foil laminate is then cut from the roll. The depth of the cut severs the foil laminate from the foil supply roll without cutting the paperboard layer underlying the edge of the protective seal on the cartridge disc. Since the manufacturing method allows the foil laminate to be secured to the cartridge disc in one machine, one step of the process is eliminated and the associate inefficiencies are removed. However, the cutting technique tends to embed the edges of the protective foil tab patch into the paperboard layer and the foil laminate is difficult to remove.
- Accordingly, the need exists for a tab lifting method and apparatus which will effectively lift the embedded tabs of protective seals applied during the disc formation process. The present invention fills these and other needs and overcomes the drawbacks associated with the prior art.
- Accordingly, it is an object of this invention to provide a device which lifts the tabs of a protective laminate from a substrate so that the laminate is easily removable from the substrate.
- It is also an object of this invention to provide a device for lifting tabs of a protective material from a substrate without causing the discs to jam during the manufacturing process.
- Another object of this invention is to provide a device for lifting foil tabs of protective seal which does not add an additional step or machine to the manufacturing process.
- A further object of this invention is to provide a method for lifting the embedded edges of a laminate from a substrate.
- Accordingly, the present invention provides for a method and apparatus for lifting the tabs of a protective seal with edges embedded in a laminate. The base of the device has an annular top having a plurality of cartridge receiving apertures spaced equally from one another. Each hole receives a tab engagement assembly comprising a cartridge, a spring, and a finger have an abutment surface. The finger is pivotally fastened at one end within the slot of the cartridge and is biased away from the cartridge by the spring. When the base is placed in proximate relationship with the laminate seal patch secured to the substrate, the rotating base causes the abutment surfaces of the fingers to drag across the periphery of the laminate seal in a circular motion. The stresses created on the tabs of the protective seal cause the embedded edges to be lifted. The lifted tabs are accessible to the end user and the protective seals may be easily peeled from the substrate when desired by the end user.
- In the accompanying drawings which form a part of the specification and are to be read in conjunction therewith and in which like reference numerals are used to indicate like parts in the various views:
- FIG. 1 is an exploded perspective view of a tab lifter assembly constructed according to a preferred embodiment of the present invention with the container removed from engagement with the tab lifter assembly.
- FIG. 2 is a bottom plan view of the container before the tabs are lifted taken along line2-2 of FIG. 1.
- FIG. 3 is an enlarged fragmentary sectional view of the container taken along line3-3 of FIG. 2.
- FIG. 4 is a sectional view of the tab lifter assembly of the present invention engaging the container.
- FIG. 5 is an enlarged fragmentary sectional view of the tab engagement assembly of the present invention engaging the composite disc of the container.
- FIG. 6 is a bottom plan view of the container after the tabs are lifted by the tab lifter assembly of the present invention.
- FIG. 7 is an enlarged fragmentary view of the container taken along line7-7 of FIG. 6.
- FIG. 8 is a top perspective exploded view of the tab engagement assembly of the present invention.
- FIG. 9 is a side elevational view of an alternative embodiment of the tab engagement assembly of the present invention.
- Referring now to the drawings in greater detail and initially to FIGS. 1 and 4, a tab lifter assembly designated generally by the numeral10 is shown.
Tab lifter assembly 10 has arotatable shaft 12 and a base 14. In the preferred embodiment, the base 14 is adapted from a crimp head used to form the curled end of the container sidewall as known in the prior art and more fully described below. Generally, the base 14 has alower portion 18 and a upper cylindrical portion 20 having a larger diameter thanlower portion 18. Afillet 22 extends around crimp head base 14 along the exterior oflower portion 18.Shaft 12 is frictionally fit within abore 16 centrally formed within the bottom of base 14. Acylindrical cavity 23 is formed centrally at the top of upper portion 20 and intersects withbore 16. When theshaft 12 is attached to the base 14, the end 21 ofshaft 12 extends slightly intocavity 23. An annular top 24 is defined by the outer edge of thecavity sidewall 26 and the outer sidewall 28 of upper portion 20. - Preferably, a plurality of crimp pins30 extend radially from the outer sidewall 28 of crimp head base 14. The crimp pins 30 have stems 32 terminating at
cap structures 34. Thearcuate walls 36 of the stems 32 are inwardly concave so that each stem 32 has the smallest diameter near the midpoint between the outer sidewall 28 andcorresponding cap structure 34. Thecap structures 34 are positioned at normal angles with respect to the central axis of the stems 32 and extend outwardly beyond the plane of annular top 24. Thecylindrical cap structures 34 are relatively thin and have a diameter preferably at least three times that of the stems 32 near their midpoint. - Stems32 of crimp pins 30 are connected to
securable adjustment shafts 38. Theadjustment shafts 38 include ancentral shaft 40 located between a pair oflarger knob shafts 42. The crimp pins 30 may be positioned at varying depths withincrimp pin apertures 43 extending radially inwardly from the outer sidewall 28 towards the center of crimp head base 14. When the crimp pins 30 are inserted to the appropriate depth, a set screw 44 extending perpendicularly to the axis of thecentral shaft 40 is tightened within a threadedaperture 45 so that the terminal end of set screw 44 is in firm frictional engagement withcentral shaft 40. Preferably, all of the crimp pins 30 are set at an equal distance from the center of the crimp head base 14 and are spaced equally from one another around a circumference of upper portion 20. In the preferred embodiment, the crimp head includes nine crimp pins 30. - With reference to FIGS. 5 and 8, the
tab engagement assembly 46 of the present invention is shown. Eachtab engagement assembly 46 has acartridge 47, acompression spring 48, an engagingfinger 49, and adowel pin 50. The generallycylindrical cartridge 47 has a head 51, asupport base 52, and aflange 53. The head 51 has a slightly larger diameter than thesupport base 52. Each cartridge has aslot 54 defined by a pair of opposingparallel sidewalls 56 and aslot bottom 58. Theslot 54 is formed along a diameter of the head 51. Thespring 48 is inserted within achamber 60 drilled at position offset from the center ofcartridge 47. Thespring 48 rests on the base of thechamber 60 and extends above the slot bottom 58 when uncompressed. The engagingfinger 49 fits withinslot 54 and is pivotally mounted at one end bydowel pin 50. Thedowel pin 50 is placed in opposingapertures 64 extending from the interior of slot sidewalls 56 to the outer surface of thecartridge 47. The opposing end of thefinger 49 engages thespring 48 and is biased outwardly from thecartridge 47. - In the preferred embodiment, the engaging
finger 49 has aspine 67 extending from the side of engagingfinger 49spring 48. Thespine 67 is about half the width of the remainder of engagingfinger 49. An abutment surface 68 is defined by the leveled top 63 and chamfered end 65 ofspine 67. - After the
spring 48 is placed inchamber 60 and engagingfinger 49 is pinned within the slot sidewalls 54, thetab engagement assembly 46 is inserted within one of the cartridge receiving holes 25. In the preferred embodiment, threecartridge receiving chambers 25 are formed on annular top 24 at positions angularly equidistant from one another. However, the present invention may have only onetab engagement assembly 46 and accompanyingcartridge receiving chamber 26. Thespine 67 of engagingfinger 49 is positioned generally tangentially to the circumferential line of the crimp head base 14 on which thecartridge receiving holes 25 are placed. Thespines 67 extend rearwardly with respect to the direction of angular motion of the rotatable crimp head base 14 as discussed further below. The abutment surface 68 of engagingfinger 49 extends rearwardly at an acute angle with respect to the surface ofcartridge 47. - Each
cartridge 47 is slidably received within acartridge receiving chamber 25 formed at the surface ofannular top 24 of crimp head base 14. Thebroad flange 53 rests upon the bottom ofchamber 25 when the tab engagement assembly is placed within the crimp head base 14. Aset screw 69 is inserted through a threadedhole 66 formed on the outer sidewall 28 of crimp head base 14. The end of theset screw 69 engages thecartridge 47 to prevent rotation and translation of the cartridge within thecartridge receiving hole 25. - With reference again to FIG. 1, the
tab lifter assembly 10 operates on a container designated generally asnumeral 70. Thecylindrical container 70 is preferably formed from paper or a material with similar characteristics. Thecontainer 70 has a relativelythin sidewall 72 and acomposite cartridge disc 74 is placed withinsidewall 72 at one end. With reference to FIG. 4,outer portion 75 ofsidewall 72 extends beyond the disc. The cartridge disc has a plurality of layers as fully described in U.S. Pat. No. 4,830,231. With reference to FIG. 3, in the preferred embodiment, thecomposite cartridge disc 74 has an annularouter layer 76 formed from paperboard and circularvalve disc layer 78 made from polyethylene. Preferably, thecartridge disc 74 has a plurality of slit valves (not shown) formed in thedisc valve 78 which allow the contents of the container to be dispersed when pressured is applied to the rear cap (not shown) of thecontainer 70. The annularouter layer 76 is secured to the top ofvalve disc layer 78 and frames the slit valves of thevalve disc layer 78. - With reference to FIG. 2, the
protective laminate patch 80 is shown.Patch 80 seals the container and protects the contents of the container from the outside environment. Thelaminate patch 80 is preferably formed from a metal foil which is most preferably aluminum. Thelaminate patch 80 is generally square-like and fully covers thecircular valve disc 78 mounted withinouter layer 76. In the preferred embodiment, the corners of thelaminate patch 80 are cut diagonally so that thelaminate patch 80 is eight-sided. Thelaminate layer 80 is adhered to theouter layer 76 at a position proximate the inner diameter of annularouter layer 76.Tabs 82 are located at each of the blocked corners and are defined by the area between theperimeter edge 84 of thelaminate patch 80 and the adhesive portion at which thelaminate patch 80 is adhered to theouter layer 76. With reference to FIG. 3, theouter edge 84 of thelaminate patch 80 is slightly embedded within the surface of the annularouter layer 76. This is due to the cut performed during the construction of thecomposite cartridge disc 74 as described in the background. Thus, the embeddededges 84 of thelaminate patch 80 are difficult for the end user to grasp. Since thetabs 82 are not easily accessible, removal of thelaminate patch 80 is quite difficult. - In operation, the
container 70 is placed on a mandrel (not shown) and is held to the mandrel by negative pressure creating a vacuum on the interior of thecomposite cartridge disc 74. With reference to FIG. 1, the crimp head base 14 rotates continuously in the counterclockwise direction. Theshaft 12 of thetab lifter assembly 10 moves axially inward so that the crimp head base 14 is received within the end ofcontainer 80. The crimp head base 14 first contacts thecontainer sidewall 72 at thearcuate walls 36 of stems 32. The contact between the stems 32 on rotating crimp head base 14 and thecontainer 70 cause theouter sidewall portion 75 of the container to curl inwardly. Theouter sidewall portion 75 begins to overlap over itself and a smooth curved outer edge is formed. This crimping process is well known in the prior art. - With reference to FIGS. 4 and 5, when the crimping of the
sidewall portion 75 is nearly complete, the abutment surfaces 68 onengagement fingers 49 contact thelaminate patch 80. Thefingers 49 are depressed slightly inwardly so thatspring 48 forces thefingers 49 into frictionally engagement with the periphery of thelaminate patch 80. Thefingers 49 remain biased towards thelaminate patch 80 and the abutment surfaces 68 onspines 67 are dragged across thepatch 80 along acircular path 86 due to the rotation of crimp head base 14. The dragging motion of the abutment surface stretches the laminate layer and creating internal stresses within thetabs 82 of thelaminate patch 80. Each abutment surface 68 engages thepatch 80 for several revolutions alongpath 86. With reference to FIG. 7, the cumulative effect of the stresses causes at least one of the fourtabs 82 to lift from the embedded position withinouter layer 76 ofcomposite cartridge disc 74. - The
shaft 12 then retracts crimp head 14 from the proximate, adjacent relationship withcartridge disc 74 ofcontainer 70. When thecontainer 70 is removed from the mandrel, thepatch 80 is easily removable by grasping the liftedtab 82 and pulling thepatch 80 from thecomposite cartridge disc 74. - In FIG. 9, an alternative embodiment of the tab engagement assembly is shown. The assembly consists of a cartridge88, a spring 90, and a
plunger 92. Thebase 94 ofplunger 92 is inserted within aslot 96 formed within cartridge 88. The spring 90 causes theplunger 92 to be biased away from the cartridge 88. The abutment surface 98 is located on a smallcylindrical member 100 formed on thehead 102 of theplunger 92. Each cartridge 88 is placed within acartridge receiving chamber 25 on the crimp head base 14. When the cartridge 88 is secured by theset screw 69 as described more fully above, the axis of thecylinder 100 is oriented in the radial direction with respect to the center of rotatable crimp head base 14. - Since the tab lifting process occurs during the crimping process instead of the composite disc formation process, the discs may be stacked upon on another until being placed into the container. Also, a separate tab lifter machine is unnecessary since the
laminate patch 80 may be placed on thecomposite cartridge disc 74 during the assembly of the discs, and the tabs may be lifted as part of the crimping process, a subsequent, independent phase of production. - In the preferred embodiment, the tab lifting process is incorporated with the conventional step of crimping the sidewall of the container. The tabs are lifted from the cartridge disc after the disc is formed and placed within the end of the cylindrical container. The integration of the novel process with the crimping step eliminates the need for a separate tab lifting machine. Also, the problems associated with stacking the cartridge discs after the tabs are lifted are eliminated because the tabs are only lifted after the discs are set in the containers. While the tab lifting process is integrated with the crimping process in the preferred embodiment, the tab lifting process could be performed independently of the crimping step. For instance, the novel tab lifting process could be performed on containers in which crimping is unnecessary. Also, the process could be performed before or after the crimping process. Additionally, the tab lifting process could be incorporated in the cartridge disc formation process if the subsequent steps in manufacturing the container do not require stacking the discs.
- The method and apparatus of the present invention is also not limited to lifting tabs adhered to cartridge discs. The invention may be used to lift the edges of a laminate from a substrate in a number of other applications in which the tabs are difficult to grasp or remove.
- From the foregoing, it will be seen that this invention is one well adapted to attain all the ends and objects hereinabove set forth together with other advantages which are inherent to the structure. It will be understood that certain features and subcombinations are of utility and may be employed without reference to other features and subcombinations. This is contemplated by and is within the scope of the claims. Since many possible embodiments may be made of the invention without departing from the scope thereof, it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.
Claims (18)
1. A device for lifting edges of a laminate embedded in a substrate comprising:
a base rotatable about a central axis, the base having a top, the top having at least one abutment surface biased away from the top,
wherein the abutment surface contacts the surface of the laminate near the periphery during the rotation of the base whereby the edges of the laminate are lifted from the substrate.
2. The device of claim 1 wherein the axis is generally perpendicular to the surface of the laminate whereby the abutment surface contacts the laminate along a circular path at a distance from the axis of rotation of the base.
3. The device of claim 2 wherein said base is movable in the direction of the axis of rotation wherein the abutment surface may be selectively disengaged from said the adjacent relationship with the laminate by moving the base away from said laminate in the direction of the axis of rotation.
4. The device of claim 1 wherein the abutment surface is biased away from the top by a spring, the spring having a first end couple to the base and a second end coupled to the abutment surface.
5. The device of claim 4 wherein the abutment surface is located on a finger.
6. The device of claim 5 wherein the finger has a first end, the finger pivotally mounted to the top of the base at the first end.
7. The device of claim 6 wherein the abutment surface of the finger extends at an acute angle from the top and rearwardly with respect to the angular direction of rotation of the base.
8. The device of claim 7 wherein the base further comprises a cylindrical sidewall, the sidewall having a number of crimping pins extending generally radially therefrom.
9. The device of claim 3 wherein said abutment surface is located on a cylindrical housing, the cylindrical housing frictionally secured within a cavity formed on the top of the base.
10. The device of claim 9 wherein said abutment surface is generally arcuate.
11. A device for lifting the tabs of a laminate on an end disc of a cylindrical container when the edges of the tabs are embedded in the disc at the edges comprising:
a base adapted to be attached to a rotatable shaft, the base having an upper surface; and
at least one abutment surface coupled to the upper surface, each abutment surface biased away from the upper surface by a spring whereby each spring maintains each corresponding abutment surface in frictional contact with the protective seal when the abutment surface contacts the protective seal during rotation of the base whereby lifting the edges of the tabs of the protective seal.
12. The device of claim 11 wherein the abutment surface is located on a finger.
13. The device of claim 12 wherein the finger is pivotally coupled at a first end.
14. The device of claim 13 wherein the finger and spring are housed within a cartridge, the cartridge frictionally secured to the base within a chamber formed on the surface of the base.
15. The device of claim 11 wherein the base is generally cylindrical.
16. The device of claim 15 wherein a plurality of abutment surfaces are coupled to the upper surface, the abutment surfaces located at an equal distance from the center of the base and angularly equidistant from one another.
17. A method for lifting the edges of a laminate from a substrate using a rotatable base having at least one abutment surface at a distance from the axis of rotation comprising:
Rotating the base;
Contacting the area proximate the edges with the abutment surface;
Dragging the abutment surface on the laminate in a circular path for at least one revolution; and
Disengaging the abutment surface from the laminate.
18. A method for manufacturing a cylindrical container comprising an end disc having a protective seal with tabs having embedded edges and a cylindrical sidewall extending beyond the end disc using a base having at least one abutment surface and at least one crimp pin on the sidewall of the base comprising:
Rotating the base;
Contacting the sidewall of the container with the crimp pin;
Moving the base towards the end disc;
Contacting the protective seal with the abutment surface; and
Moving the base away from the container.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/268,291 US20030029015A1 (en) | 1999-03-31 | 2002-10-10 | Method and apparatus for lifting tabs of a laminate from a substrate |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/281,884 US6163951A (en) | 1999-03-31 | 1999-03-31 | Method and apparatus for lifting tabs of a laminate from a substrate |
US09/655,534 US6493918B1 (en) | 1999-03-31 | 2000-09-05 | Method and apparatus for lifting tabs of a laminate from a substrate |
US10/268,291 US20030029015A1 (en) | 1999-03-31 | 2002-10-10 | Method and apparatus for lifting tabs of a laminate from a substrate |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US09/655,534 Division US6493918B1 (en) | 1999-03-31 | 2000-09-05 | Method and apparatus for lifting tabs of a laminate from a substrate |
Publications (1)
Publication Number | Publication Date |
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US20030029015A1 true US20030029015A1 (en) | 2003-02-13 |
Family
ID=23079178
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/281,884 Expired - Fee Related US6163951A (en) | 1999-03-31 | 1999-03-31 | Method and apparatus for lifting tabs of a laminate from a substrate |
US09/655,534 Expired - Lifetime US6493918B1 (en) | 1999-03-31 | 2000-09-05 | Method and apparatus for lifting tabs of a laminate from a substrate |
US10/268,291 Abandoned US20030029015A1 (en) | 1999-03-31 | 2002-10-10 | Method and apparatus for lifting tabs of a laminate from a substrate |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/281,884 Expired - Fee Related US6163951A (en) | 1999-03-31 | 1999-03-31 | Method and apparatus for lifting tabs of a laminate from a substrate |
US09/655,534 Expired - Lifetime US6493918B1 (en) | 1999-03-31 | 2000-09-05 | Method and apparatus for lifting tabs of a laminate from a substrate |
Country Status (1)
Country | Link |
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US (3) | US6163951A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110182992A1 (en) * | 2008-02-07 | 2011-07-28 | Anantharamaiah Gattadahalli M | Peptides and peptide mimetics to treat pathologies associated with eye disease |
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US6163951A (en) * | 1999-03-31 | 2000-12-26 | Sealright Co., Inc. | Method and apparatus for lifting tabs of a laminate from a substrate |
US7709070B2 (en) | 2001-12-20 | 2010-05-04 | The Procter & Gamble Company | Articles and methods for applying color on surfaces |
US7316832B2 (en) | 2001-12-20 | 2008-01-08 | The Procter & Gamble Company | Articles and methods for applying color on surfaces |
US20040253422A1 (en) | 2003-02-14 | 2004-12-16 | Truog Keith L. | Multi-layer dry paint decorative laminate having discoloration prevention barrier |
US20040161564A1 (en) | 2003-02-14 | 2004-08-19 | Truog Keith L. | Dry paint transfer laminate |
US20050196607A1 (en) | 2003-06-09 | 2005-09-08 | Shih Frank Y. | Multi-layer dry paint decorative laminate having discoloration prevention barrier |
US7226521B2 (en) * | 2004-11-03 | 2007-06-05 | The Procter & Gamble Company | Laminae separating dispenser and method of use |
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US6163951A (en) * | 1999-03-31 | 2000-12-26 | Sealright Co., Inc. | Method and apparatus for lifting tabs of a laminate from a substrate |
-
1999
- 1999-03-31 US US09/281,884 patent/US6163951A/en not_active Expired - Fee Related
-
2000
- 2000-09-05 US US09/655,534 patent/US6493918B1/en not_active Expired - Lifetime
-
2002
- 2002-10-10 US US10/268,291 patent/US20030029015A1/en not_active Abandoned
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110182992A1 (en) * | 2008-02-07 | 2011-07-28 | Anantharamaiah Gattadahalli M | Peptides and peptide mimetics to treat pathologies associated with eye disease |
Also Published As
Publication number | Publication date |
---|---|
US6163951A (en) | 2000-12-26 |
US6493918B1 (en) | 2002-12-17 |
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Legal Events
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