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Publication numberUS3923198 A
Publication typeGrant
Publication dateDec 2, 1975
Filing dateAug 21, 1974
Priority dateSep 17, 1973
Also published asCA1020120A1, DE2444616A1
Publication numberUS 3923198 A, US 3923198A, US-A-3923198, US3923198 A, US3923198A
InventorsBrochman Wilfred R
Original AssigneeMinnesota Mining & Mfg
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Stress-opacifiable tamper indicator
US 3923198 A
Abstract
A container is hermetically sealed with an easy opening tape closure, at least a portion of which opacifies when stressed, providing a visual indication that the closure has been tampered with.
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Description  (OCR text may contain errors)

United States Patent l l in] 3,923,198

Brochman 1 Dec. 2, 1975 I 1 STRESS-()PAClFlABLE TAMPER [56] References Cited INDICATOR UNITED STATES PATENTS 5! Inventor: Wilfred R. Brochman, Oakdale, 3.312.368 4/1967 Reynolds ct I. 220/35) Minn. 3.516.252 10/1967 Jzmsscn ct nl 2 0/159 [73] Assxgneez x M g and St P 1 Primary E.\'aminer(ieorgc T. Hall ac unng ompany Attorney. Agent. or FirmAlexunder, Sell. Stcldt &

DeLaHunt [22] Filed: Aug. 21, 1974 [211 App]. No.: 499,279 [57] ABSTRACT A container is hermetically sealed with an easy open- Related Apphcatlon Data ing tape closure. at least a portion of which opacifies continufltion-in-pal'l of 397,876. Septv when stressed, providing a visual indication that the 1973* abmdonei closure has been tampered with.

[52] U.S. Cl 220/359; 215/7; 229/7 R [Sl] Int. Cl. B65D 41/00 [58] Field of Search 220/359, 214, 260; 215/7; 8 Chime 6 Drawmg Flgures 229/7 R. 51 AS US. Patent Dec. 2, 1975 Sheet 1 of2 3,923,198

Sheet 2 of 2 U.S. Patent Dec. 2, 1975 STRESS-OPACIFIABLE TAMPER INDICATOR CROSS-REFERENCE TO RELATED APPLICATION This application is a continuation-in-part of my copending application Ser. No. 397,896 filed Sept. 17, 1973, now abandoned.

BACKGROUND OF THE INVENTION This invention relates to an improved container closure.

In recent years, many containers have been hermetically sealed with easy opening tape closures which are affixed over a hole in the top of the container by a heatsealing or pressure-sensitive adhesive; see Abere and Brochman, U.S. Pat. No. 3,389,827. A typical closure has a free end which is easily gripped by the fingers to facilitate removal, after which the contents, e.g., fruit juice, oil, salt, etc., can be removed via the exposed hole.

Although tape closures of the Abere et al type provide an effective and easily opened seal, they are subject to tampering. It is possible to carefully break the seal, remove or adulterate the contents of the container and then replace the tape without leaving any visible traces.

A tape closure which changes color when an attempt has been made to remove it with the aid of an organic solvent is disclosed in U.S. Pat. No. 3,680,236. This closure incorporates a dye-containing layer which dissolves and stains the tape when contacted with an organic solvent, e.g., kerosene or toluene. Unfortunately, however, most tampering is purely mechanical in nature.

A further type of tape closure is the heat shrunk sleeve found around the neck of many bottles containing barbecue sauce, wine and other comestibles. This type of closure is generally not resealable once it has been opened, but each type of bottle requires a custom sized sleeve which is useful only for a particular size and configuration. In the past, such sleeves have been mechanically held in position before and during heat shrinking.

The present invention provides a simple way of detecting whether any of several types of tape closure seal has been broken. In each case, the closure visually indicates when it has been mechanically tampered with, thereby providing increased safety and product confidence to the ultimate consumer. In making heat shrunk closures, the sleeve is held in place by adhesive until shrinkage has occurred, eliminating the need for a separate holding means.

This invention comprises, in one aspect, an improved form of previously known tape closures. The invention provides a closure having, at an exposed surface, a layer of material which is originally transparent or translucent but which opacifies when stressed (as occurs when the closure is removed to open the container). Before the stress-opacifying material is stressed, any underlying substrate is visible; after stressing; however, the material becomes opaque white or pastel. Any underlying surface or material which was previously visible is thereby obscured, resulting in a change of appearance which indicates that the tape closure has been tampered with. The evidence of tampering remains even if the closure is thereafter resealed. The entire closure can be formed from a stress-opacifymg material; alternatively, the stress-opacifying material can be part of a separate indicator layer disposed on top of an otherwise conventional tape closure.

The tape closure chosen can be of the type described in the aforementioned U.S. Pat. No. 3,389,827, the disclosure of which is incorporated herein by reference. The closure of this invention can also be used in the form of an elongated pressure-sensitive adhesive coated strip to seal the joint between a can and lid in slip-cover or collar cans of the type commonly used to package coffee, canned ham, etc.; see U.S. Pat. No. 3,516,852. The strip is also useful in holding conventional fitted caps or tops on plastic or cardboard food containers e.g., of yogurt or cottage cheese). In such cases, the closure of this invention can be formed by wrapping a strip of heat-shrinkable tape around the container overlying the joint between the body and the tape and extending below, and optionally above the rim. The application of heat shrinks the tape around the rim, thereby forming a tight tape seal. The heat shrunk tape collar may thus be utilized either primarily as a seal (as in the slip-cover cans) or primarily as a tamper indicator (as in bottles, etc.) providing an air tight secondary seal in the latter case. Thus, if the primary seal should fail as may occur if the sealing lip of a bottle is chipped, the tape will protect the containers contents.

Where the indicator layer is a separate layer attached to the closure used, at least a portion of the indicator layer is partially disposed on the free end of the tape closure so that it is flexed and begins opacifying before any substantial portion of the closure is removed, thus insuring that the contents of the sealed container cannot be altered without detection.

The stress-opacifying indicator layer is advantageously formed from a l-lO mil (25-250 micron) film of normally transparent stress-opacifying unplasticized polyvinyl chloride, other suitable stress-opacifying materials including films of polybutadiene/polystyrene, polyvinyl chloride/polyvinyl acetate and isotactic polypropylene/butyl rubber blends.

Where the stress-opacifying film constitutes the entire tape closure, it will generally be thicker than where it appears only in a layer on top of a supporting tape closure. The thickness of the films used will necessarily depend on the internal pressure of the container being sealed. Cans containing carbonated beverages, for example, will naturally require a thicker, stronger, closure than packages of unpressurized dry materials, such as breakfast cereals.

When a separate indicator layer is used, it is advantageously secured to the tape closure by pressure-sensitive adhesive, although other thermosetting and thermoplastic adhesives may be used. The adhesive should, of course, bond the indicator to the tape closure so firmly and adherently that the indicator strip will be stressed beyond its opacification point when the tape closure is flexed. Adhesives which do not sufficiently firmly bond the indicator layer to. the tape closure will allow the indicator to buckle or separate from the tape closure; therefore, the indicator will not be flexed and no visual change will occur to indicate tampering. Functionally stated, the adhesive should be so firmly bonded to both the indicator layer and the tape closure that the force required to peel the indicator layer from the closure exceeds the force required to stress-opacify the indicator layer.

The peel adhesion of the adhesive can be measured using a modified version of the Pressure-Sensitive Tape 3 Councils 180 peel adhesion test PSTC1. In this modification, a strip is formed by coating the adhesive to be measured on a l-3 mil (25-75 micron) biaxially oriented polyethylene terephthalate film at a dry coating weight of -12 grains per 24 square inches (about 40-50 grams/m A strip 10 inches (about 25 cm) long and 1 inch (2.5 cm) wide is cut from the tape and applied to a clean 2-inch X 5-inch (about 5 X 12.5 cm) steel plate so that 5 inches (about 12.5 cm) extends beyond one end and rolled to insure that no air bubbles are entrapped. The test piece is allowed to age for 24 hours at room temperature, after which the free end of the tape strip is doubled back over the adhered portion, pulled beyond the end of the panel and clamped in one pair of jaws of an Instron tensile testing machine. The exposed end of the steel panel, adjacent the doubledback end of the tape, is then clamped in the second pair of jaws of the tensile tester, so that when the two pairs of jaws are separated, the tape is stripped free from the steel panel. The jaws are separated at the rate of l2 inches (about 30.5 cm) per minute, the force required giving a measure of peel adhesion. Adhesives which have a peel adhesion of at least about 50 ounces per inch of width (about 560 grams per centimeter of width) have been found generally suitable for securing an indicator layer to a tape closure to insure sufficient stress to opacify the indicator. Beneath the stressopacifying layer is a colored material. When the stressopacifying layer is unflexed and therefore transparent, the colored layer is visible along the entire closure.

When the stress-opacifying layer is flexed, it becomes translucent or opaque, blocks out the underlying color' and thus creates a different visual impact, indicating tampering with the closure in which the stress-opacified layer is incorporated.

It is also possible to print indicia, such as the words open or opened on the upper surface of the stressopacifying layer, the indicia being the same color as the underlying colored layer. Such indicia are invisible before the closure has been flexed but show up as colored words or patterns on the opaque white or pastel background after the closure has been flexed.

It is also within the purview of this invention to prepare closures which incorporate colored layers both above and below the stress-opacifiable layer, the exposed colored layer being transparent so that the indicator initially has an appearance which is the sum of the two separate colors. Upon opacification, only the top color will be visible. Further information on such colored systems and materials for forming them can be found in US. Pat. No. 3,468,744, the disclosure of which is incorporated herein by reference.

BRIEF DESCRIPTION OF THE DRAWINGS A further understanding of the invention may be had by referring to the accompanying drawing in which like numbers refer to like parts in the several views and in which:

FIG. 1 is a top plan view of a can lid having an aperture covered by the tape closure of this invention;

FIG. 2 is a cross-sectional view of the can lid of FIG. 1 taken along section line 2-2 and looking in the direction of the arrows;

FIG. 3 is a perspective view of a roll of tape suitable for making can closures of this invention;

FIG. 4 is a perspective view of a slip cover can sealed by a closure of this invention;

. 4 FIG. 5 is a paftial elevation of a food container in partial section With its fitted cover in place showing a heat shrinkable tape in position for shrinking; and

FIG. 6 depicts the container of FIG. 5 after the tape has been heat shrunk.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS adhesive layer 24. Tape closure 14 comprises a layer of strong film 26 attached to can top 10 in the area surrounding aperture 12 by adhesive 28.

In an alternative embodiment, film 26 of closure 14 is itself a strong stress-opacifying material, thereby eliminating the need for a separate indicator layer. In this embodiment, colored layer 22 is disposed between adhesive 28 and film 26, and closure 14 itself opacifies when flexed giving a visual change which shows the closure has been tampered with.

As shown in FIG. 3, tap'e closure 14 of FIGS. 1 and 2, with its indicator strip 16, is conveniently died from an elongated strip unwound from a convolutely wound roll 30 of material. Film 32, suitable for forming a tape closure, has a continuous indicator layer 16 of stressopacifying material adhesively bonded to its exposed surface. A layer of adhesive 33, suitable for attaching the closure to a can top, is firmly adherently bonded to the surface of film 32 opposite indicator strip 16. Tape closures are conveniently die-cut from the strip of roll 30 to the desired shape, such as that shown in FIG. 3. (It will be understood, of course, that roll 30 will conventionally be wound upon itself about a core, adhesive side in, and is shown otherwise in FIG. 3 for convenience in understanding.)

In FIG. 4, slip cover can 35, comprising cover 36 and body 38, is sealed with strip closure 34, which covers the line (not shown) along which the lower edge of cover 36 overlaps the upper edge of body 38. Closure 34 has pull tab 40 with indicator 41 disposed between tab 40 and the point 42 where the closure 34 overlaps and is adhered to itself slightly to insure a hermetic seal. A portion of cover 36 and container 38 is recessed slightly so that strip closure 34 does not protrude beyond the major circumferential surface of the can, thereby protecting strip 34 from accidental damage during shipping and handling. Further details of this type of sealing construction can be found in aforementioned US Pat. No. 3,5 16,852, the disclosure of which is incorporated herein by reference.

In FIGS. 5 and 6, food container 44 is sealed with easily removable depressed center cover 46. A strip of heat-shrink tape 47, having pressure-sensitive adhesive 48 disposed on one side, wound around and adhered to rim 49 formed by the cover and container overlying the line of abutment between the two. As shown in FIG. 5, tape 47 is applied along rim 49 of the container and its ends overlapped so that the film will form a complete sleeve when heat shrunk. After being attached to rim 49, tape 47 is heated, e.g., by means of ajet of air at a temperature of about l00-200C., causing the film to shrink and enclose the rim as shown in FIG. 6.

The invention isfurt her described with reference to the following nonlirniting examples. Parts and percentages are by weight unless otherwise noted;

y EXAMPLE 1 A 7.5 mil (about l90-micron) film of oriented rigid unplasticized polyvinyl chloride (commercially available from B.A.S.F. under the trade designation Luvithem) was reverse roll coated on one side with a black vinyl ink comprising carbon black pigment in a phthalate-plasticized polyvinyl chloridezpolyvinyl acetate binder resin solution. The coated film was then placed in a 65C. warm air oven for minutes to drive off the solvent and leave a dry coating weight of 0.25 to 0.30 gram ink per 24 square inches (about 50 mglcm A suitable ink can be made by diluting MRX-9243 black vinyl ink, sold by Crescent Ink and Color Company, from its normal 39% solids content to 24% solids content, using a blend of equal volumes of toluene and methyl ethyl ketone.

A thin primer layer of 7.5% solids dimer based polyamide (obtainable from General Mills under the trade designation Versalon 1140) in 2:1 isopropanolztoluene solvent was coated over the ink. A pressure-sensitive adhesive was made by dissolving (1) 100 parts of an ABA block copolymer where A is 15,000 molecular weight polystyrene and B is 30,000 molecular weight polybutadiene (available from Shell Chemical Company under the trade designation Kraton l 101) and (2) 95 parts of a-terpene in toluene. The blend was diluted with toluene to 40% solids and knife coated on the primed, inked surface. The film was dried at 65C.

for 20 minutes to evaporate the toluene, leaving 12 Y grains of adhesive per 24 square inches (about 50 grams/m The resulting strip was laminated to the upper surface of a container sealing closure similar to those described in US. Pat. No. 3,389,827, Example 11, the closure being formed of an aluminum vaporcoated biaxially oriented polyethylene terephthalate film to form a laminated structure similar to FIG. 2.

When viewed from its exposed side, after being applied to the sealing closure, the indicator strip originally appeared black, since the black ink printed on the nonexposed side of the transparent Luvitherm polyvinyl chloride film was visible. When the closure was flexed during removal, however, the polyvinyl chloride .film attained an opaque white appearance blocking the black color from view and thereby indicating that the closure had been partially removed.

Example 2 A polyvinyl chloride based film was made by mixing:

Parts polyvinyl chloride resin available from Union Carbide Co. 100

acrylate-butadiene styrene copolymer available from Rohm and Hass as Acryloid KM 228 9 Moman wax acid derivative available as E" wax from B.A.S.F. Wyandotte Phosphite chclate available as Mark C" from Argus Chemical Co. 1

The mixture was calendered to form a 7-mil (190- micron) thick polymeric film. The calendered film was stretched in the longitudinal directioniat. a 2.5 to I stretch ratio, reducing the films thickness to about 2.75 mils and making it heat-shrinkable. i

The stretched fllrn was reverse roll coated with a black vinyl ink-'as'in Example 1. A 'thin primer layer was coated over the ink. A'pressure-sensitive adhesive was made by dissolving IOO'parts fthe block copolymer of Example 1 "and 'parts of alphai pineneresin in toluene (commercially available from Pennsylvania Industrial Chemical Co. under the trade designation Piccolyteal35. The blend was diluted with toluene to 40% solids, knife coated on the primed inked surface, and dried at 65C. for about 20 minutes to evaporate the toluene, leaving 8 grains of adhesive per square inches (about 27.5 grams/m A 2-inch (about 5 cm) strip of the tape was formed into a band with its ends overlapping about /8 inch (about 9 cm) and placed around the neck of a ketchup bottle with about l/ 16 inch (about 0.16 cm) extending beyond the cap. The bottle with the tape held in position was rotated in a stream of hot air at about 300F. (about C.) for about 3 seconds. The tape shrunk conforming to the bottle and cap providing an air tight seal.

When the end of the tape is pulled away from the bottle, the film stress opacifies changing the appearance of the film surface from black to white.

What we claim is:

1. In a container sealed by means of a tape closure, the improvement which comprises:

at least a portion of the closure surfaced with an indicator strip comprising a stress-opacifying colored backing;

whereby when said indicator layer is flexed to open said closure, said backing will become opaque and display a color difference between the flexed and unflexed portions indicating said flexing even if said covering is returned to its previous sealing position.

2. The sealed container of claim 1 where said indicator strip comprises a heat-shrinkable tape which has been exposed to heat whereby the tape forms a tight seal.

3. The sealed container of claim 1 wherein said indicator strip bears on its exposed surface printed indicia of the same color as the colored backing, whereby when the indicator is unflexed, the indicia are invisible and when the indicator is flexed, the indicia will be visible against an opaque background.

4. The sealed container of claim 1 further characterized by said container having a rigid wall with formed aperture therein, the cover over said aperture being a tape closure having a free end, said closure comprising a sheet material removably adhered directly to a portion of said wall which surrounds said aperture, said closure capable of being grasped by said free end and pulled back upon itself without rupture to expose the underlying material and said indicator layer being adhered to said closure by an adhesive.

5. The sealed container of claim 4 wherein the adhesive which bonds the strip to the closure has a peel force of at least 50 ounces per inch of width.

6. The sealed container of claim 1 where said stress opacifying material is an oriented polyvinyl chloride polymeric film.

7. The sealed container of claim 1 where said container is a slip cover can sealed by a length of tape having a free end suitable for gripping having said indicator 8 face of said tape being surfaced with an indicator comprising a stress-opacifying backing, whereby when said closure is flexed, the backing will opacify and display a color difference between the flexed and unflexed portions, even if the tape is thereafter returned to its previous sealing position.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3312368 *Sep 9, 1964Apr 4, 1967Reynolds Metals CoEasy-open can end
US3516852 *Oct 2, 1967Jun 23, 1970Minnesota Mining & MfgAdhesive strip
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4234099 *Sep 7, 1978Nov 18, 1980Tarro Richard EContainer with attached pull tab opening
US4454956 *May 16, 1983Jun 19, 1984Minnesota Mining & Manufacturing CompanyTamper indicating composite tape closure
US4480760 *Apr 13, 1983Nov 6, 1984Milton SchonbergerTamper visible indicator for container lid
US4489841 *Feb 18, 1983Dec 25, 1984Tri-Tech Systems International, Inc.Tamper evident closures and packages
US4502605 *Jun 29, 1984Mar 5, 1985Denerik Creativity, Inc.Container closure integrity system
US4505399 *Jun 21, 1984Mar 19, 1985Weiner Robert CTamper-indicating device and method
US4511052 *Mar 3, 1983Apr 16, 1985Klein Howard JContainer seal with tamper indicator
US4519515 *Dec 7, 1983May 28, 1985Milton SchonbergerDisc for indicator for tamper-evident lid
US4557505 *Jan 5, 1984Dec 10, 1985Minnesota Mining And Manufacturing CompanyFor use on closures
US4558794 *Oct 19, 1983Dec 17, 1985Tbl Development CorporationContainer with vessel for retention of telltales
US4709396 *Dec 24, 1985Nov 24, 1987John H. Harland CompanyTamper-evident envelope with indicia underlying cohesive layers
US4709397 *May 16, 1986Nov 24, 1987John H. Harland CompanyTamper-evident envelope with indicia-forming cohesive layers
US4736857 *Nov 14, 1986Apr 12, 1988American Home Products CorporationTamper indicating closure
US4792053 *Nov 12, 1982Dec 20, 1988Tbl Development CorporationTamper-indicating capped container with angularly movable tine
US4793122 *Nov 22, 1982Dec 27, 1988Tbl Development CorporationTamper-indicating closure for a container, container and method for making same
US4793503 *Dec 17, 1982Dec 27, 1988Tbl Development CorporationContainer closure with rupturable tamper disk
US4793504 *Sep 12, 1983Dec 27, 1988Tbl Development CorporationClosure with containment of telltale means
US4793505 *Jan 28, 1983Dec 27, 1988Tbl Development CorporationTamper-indicating container closure with rupturable disk
US4865198 *Feb 1, 1988Sep 12, 1989R. J. Reynolds Tobacco CompanyOverwrapped package with tamper indicating means
US4905851 *Dec 30, 1988Mar 6, 1990Tri-Tech Systems International, Inc.Tamper evident closures and packages with color changing means and separable portions of the closures and method of forming the same
US4911302 *Mar 13, 1989Mar 27, 1990R. J. Reynolds Tobacco CompanyMethod for imprinting overwrapped packages
US4934544 *Feb 27, 1989Jun 19, 1990Minnesota Mining And Manufacturing CompanyZ-tab innerseal for a container and method of application
US4998666 *Mar 31, 1989Mar 12, 1991Frederick R. EwanTamper indicating containers and seals
US5004111 *Feb 27, 1989Apr 2, 1991Minnesota Mining & Manufacturing CompanyInternally delaminating tabbed innerseal for a container and method of applying
US5012946 *Jun 29, 1990May 7, 1991Minnesota Mining & Manufacturing CompanyInnerseal for a container and method of applying
US5064664 *Apr 4, 1990Nov 12, 1991Oscar Mayer Foods CorporationOpacity; foods
US5103979 *Oct 11, 1989Apr 14, 1992Oscar Mayer Foods Corp.Package having peel seal tamper-evidence message
US5199618 *Nov 30, 1990Apr 6, 1993Tetra Alfa Holdings S.A.Pouring device for container for flowable material
US5217790 *May 30, 1990Jun 8, 1993Stanpac Inc.Elongate strip for the production of sealing members for containers
US5219194 *Feb 28, 1992Jun 15, 1993Viking CorporationSecurity seal
US5234732 *Mar 18, 1991Aug 10, 1993Philip Morris Inc.Tamper-indicating wrappers
US5261990 *May 30, 1990Nov 16, 1993Stanpac Inc.Method of making an elongate strip for the production of sealing members for containers
US5294470 *Aug 17, 1992Mar 15, 1994Ewan Frederick RTamper indicating containers and seals
US5358281 *Feb 10, 1993Oct 25, 1994Moore Business Forms, Inc.Security pressure sensitive label
US5433992 *Oct 14, 1992Jul 18, 1995Stanpac Inc.Sealing member for a container
US5477972 *Jun 2, 1994Dec 26, 1995Lester; William M.Tamper evident closure device for bottles and the like
US5510171 *Jan 19, 1995Apr 23, 1996Minnesota Mining And Manufacturing CompanyDurable security laminate with hologram
US5514442 *Nov 15, 1993May 7, 1996Stanpac, Inc.Sealing member for a container
US5631068 *Feb 13, 1995May 20, 1997Trigon Packaging CorporationSelf-containing tamper evident tape and label
US5641084 *Dec 26, 1995Jun 24, 1997The Pillsbury CompanyFor sealing a cap to a container
US5658411 *Dec 22, 1995Aug 19, 1997Minnesota Mining And Manufacturing CompanyProtective, embossed, reflective and adhesion enhancing layer composite; adhesive bonded to composite; bonding strength
US5683774 *Feb 16, 1996Nov 4, 1997Minnesota Mining And Manufacturing CompanyDurable, tamper resistant security laminate
US5770283 *Aug 29, 1996Jun 23, 1998Minnesota Mining And Manufacturing CompanyPressure sensitive labels which irreversibly display an image after removal from a substrate to which it has been adhesively applied
US5798169 *Dec 3, 1996Aug 25, 1998Sealed Air CorporationBag closure that provides evidence of refrigerant tampering; used for tight security purposes
US6033519 *Aug 6, 1998Mar 7, 2000Fenson & Company LimitedMethod of protecting wooden objects from decay
US6108475 *Dec 22, 1997Aug 22, 2000Lucent Technologies Inc.Optical fiber cable products having a stress indicating capability and process for making same
US6284337Jun 23, 1999Sep 4, 20013M Innovative Properties CompanyDurable security laminate with heat-shrinkable layer
US6301767 *Apr 17, 1998Oct 16, 2001Pechiney Emballage AlimentaireCap with plastic sleeve
US6527900 *Nov 23, 1999Mar 4, 20033M Innovative Properties CompanyRemovable adhesive tape
US6797756May 21, 2001Sep 28, 2004Bp Chemicals LimitedLignite or montan wax, polyolefin or pariffin wax, polyethylene homo or copolymer, or metal oxide grafted to polar organic compound such as polyethylene glycol;stabilizers; easy to unscrew; no unpleasant taste or
US6960110 *Sep 18, 2003Nov 1, 2005Be Aerospace, Inc.Secure life jacket container
US7178867Nov 1, 2005Feb 20, 2007Be Aerospace, Inc.Secure life jacket container
US7252569Jul 14, 2005Aug 7, 2007Be Aerospace, Inc.Secure life vest container
US8094041Mar 31, 2008Jan 10, 2012The Boeing CompanySeat cushion retention and monitoring in an aircraft
US8282754Sep 25, 2008Oct 9, 2012Avery Dennison CorporationPressure sensitive shrink label
US8292223Mar 31, 2008Oct 23, 2012The Boeing CompanySecuring emergency and safety equipment on aircraft
US8496291Sep 17, 2012Jul 30, 2013The Boeing CompanySecuring emergency and safety equipment on aircraft
US8535464Apr 4, 2008Sep 17, 2013Avery Dennison CorporationPressure sensitive shrink label
US8678493Jun 11, 2013Mar 25, 2014The Boeing CompanySecuring emergency and safety equipment on aircraft
CN100594872CSep 16, 2004Mar 24, 2010尼普洛株式会社Medical container and its using method
DE2655632A1 *Dec 8, 1976Jun 16, 1977Minnesota Mining & MfgBehaelter und behaelterdeckel mit abziehverschluss
EP0116892A2 *Feb 8, 1984Aug 29, 1984Tri-Tech Systems International, Inc.Tamper evident closures and packages
EP0128269A1 *Mar 8, 1984Dec 19, 1984Joy Research IncorporatedTamper resistant packaging device
EP0148030A2 *Dec 28, 1984Jul 10, 1985Minnesota Mining And Manufacturing CompanyStress-opacifying tamper indicating tape
EP0205457A1 *Oct 8, 1985Dec 30, 1986Minnesota Mining & MfgTamper-resistant packaging tape.
EP0949153A1 *Apr 7, 1999Oct 13, 1999ROBINSON & SONS LIMITEDPaperboard tube with tamper evident closure
WO1984003270A1 *Feb 13, 1984Aug 30, 1984Tri Tech SystTamper evident closures and packages
WO2000032695A1 *Nov 16, 1999Jun 8, 2000Pascal AgnielPolymer composition for bottle screw caps
WO2006027159A1 *Sep 1, 2005Mar 16, 2006Freudenreich GerhardPackaging for butter or similar
WO2007009106A1 *Jul 14, 2006Jan 18, 2007Be Aerospace IncSecure life vest container
Classifications
U.S. Classification220/359.2, 283/94, 283/81, 220/214, 283/114, 215/203, 283/95
International ClassificationB65D17/00, B65D55/08, B65D55/02, B65D17/50
Cooperative ClassificationB65D17/502, B65D2101/0084, B65D55/0854, B65D2517/5083, B65D2517/5035, B65D2517/0013, B65D55/0818
European ClassificationB65D17/50A1, B65D55/08B, B65D55/08B3