Tamper Indicating Patents (Class 383/5)
  • Patent number: 5503328
    Abstract: In accordance with the present invention a multiple use envelope for safely sending material to successive recipients is provided. The envelope broadly is a paperboard container having a generally rectangular, substantially closed body with one open edge opening into an interior cavity for receiving material. A closure flap is connected to the body adjacent the open edge and can be manipulated to close the opening. On its interior surface, the closure flap carries two parallel sealing strips and two parallel opening strips for use by first and second senders and recipients. On its exterior surface, the closure flap carries an indicia receiving security block overlying at least a portion of at least one of the two opening strips. The invention also encompasses a flat paperboard blank for forming into the envelope.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: April 2, 1996
    Assignee: Waldorf Corporation
    Inventors: Harry I. Roccaforte, Mark E. Philion, Charles T. Keshner
  • Patent number: 5499757
    Abstract: An easy opening, tamper evident package has a package body with a mouth opening to receive materials. A closure flap extends from the package body next to the mouth opening. The closure flap has an inner surface which faces and overlaps an edge portion of the package body when the closure flap is fully extended to close mouth opening. An adhesive closure is permanently adhered to the inner surface of the flap and has an adhesive surface which adheres to the edge portion, at least when said closure flap is fully extended over said mouth opening and pressed against said package body. A break-away region is defined in the package by perforations through the package body near the mouth opening. The adhesive closure overlaps the break-away region, at least when the closure flap is fully extended over said mouth opening to close the mouth so that the overlapped break-away region is subject to tear forces applied to the package to separate the closure flap from the adhered edge portion when the package is opened.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: March 19, 1996
    Assignee: International Envelope Company
    Inventor: Gordon E. Back
  • Patent number: 5492411
    Abstract: A closure arrangement for a polymeric bag with first and second opposing films comprises first and second opposing base strips, a first peelable strip of a first color, and a second peelable strip of a second color. An outer surface of the first base strip is attached to an inner surface of the first film. An outer surface of the second base strip is attached to an inner surface of the second film. The first peelable strip is attached to the inner surface of the first base strip, and the second peelable strip is attached to the inner surface of the second base strip. The first and second peelable strips are disposed between the first and second base strips. The second peelable strip is generally parallel to and opposes the first peelable strip. The second color of the second peelable strip is lighter than the first color of the first peelable strip.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: February 20, 1996
    Assignee: Reynolds Consumer Products Inc.
    Inventor: Timothy J. May
  • Patent number: 5478010
    Abstract: The mailing envelope includes a front sheet portion and a back sheet portion. A folded back flap adjoins the front sheet portion which projects into the interstice between the front and the back sheet portion. The mailing envelope is closed by an adhesive material strip which joins the back sheet portion to the folded back flap. The mailing envelope includes, furthermore, lateral folded over flaps by which the front sheet portion of the envelope is bonded to the back sheet portion. A portion of a bonding material is placed at the free edge of each flap which portion projects visibly at the free edge of the flap and has a color which visibly contracts the color of the sheet portions. A further correspondingly colored adhesive material portion is located at the bottom of the fold area between the front sheet portion and the folded over flaps.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: December 26, 1995
    Assignee: VA+ST Group Sicherheit AG
    Inventor: Claude Vaucher
  • Patent number: 5456928
    Abstract: A reclosable, hermetically-sealed flexible package which has an inner, hermetic peelable seal and a reclosure seal, typically including interlocking closure strips, is provided with one or more of various tamper-evident features which provide an easily visible and noticeable indication of disruption thereof of the type that would gain access to the reclosure seal.
    Type: Grant
    Filed: May 10, 1991
    Date of Patent: October 10, 1995
    Assignee: Oscar Mayer Foods Corporation
    Inventors: Gerald O. Hustad, Daniel A. Thiemann, Cindy M. Wells
  • Patent number: 5417495
    Abstract: A reclosable bag is disclosed wherein a fastener strip has male and female cooperating profiles mounted thereon. The fastener strip is mounted on the inside surface of the rear panel of the bag with one of the profiles in the bag. The fastener strip is foldable over the front panel of the bag to a position wherein the male and female profiles cooperate to close the bag with the front panel between the profiles.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: May 23, 1995
    Assignee: KCL Corporation
    Inventor: Mark E. Branson
  • Patent number: 5407277
    Abstract: A security bag having attached thereto an auxiliary bag with a reclosable zipper. The security bag is sealable by a flap having hot melt adhesive thereon. Tamper evidence is provided by a permanent color change of a colored marking adjacent the flap. The color change results from the application of extreme cold temperature to the flap.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: April 18, 1995
    Assignee: KCL Corporation
    Inventors: James W. Burke, Cynthia M. Miller
  • Patent number: 5405197
    Abstract: A tamper-evident seal for a plastic envelope with a pocket and closing flap having first adhesive sealing means for sealing the flap to the envelope and a second, tamper-evident sealing means adhering to the end of and extending beyond the end of the flap which also adheres to the envelope after the flap is closed and sealed.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: April 11, 1995
    Inventor: Kenneth R. Makowka
  • Patent number: 5405629
    Abstract: A multi-seal flexible recloseable package having a tapered product cavity formed in one of the package sidewalls has a generally wedged-shaped cavity into which a doubled-over shingled stack of the food product slices are sealed. The package has a first, peelable hermetic seal located next to an access edge of the product cavity and a second, recloseable seal positioned directly above the peelable seal. Vertical extensions of the package sidewalls are sealed together at their tops to form a third package seal which has a tamper-evident tear strip. One or more openings in the vertical package extensions allow the package to be supported on a display hook.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: April 11, 1995
    Assignee: Oscar Mayer Foods Corporation
    Inventors: Todd S. Marnocha, Brian P. Lawless, Gerald O. Hustad
  • Patent number: 5399021
    Abstract: A tamper-proof and/or tamper-evident bag or envelope is provided for transporting of credit cards or debit cards which have raised identifying characters. The bag or envelope includes a tamper strip, a front panel, and a back panel drawing together at the lateral edges of the panels. In use the card is inserted into the bag or envelope with its characters disposed behind the tamper strip and covered by the tamper strip. The inside of the rear panel is then sealed to the outside of the front panel by an improved closure system which utilizes improved folding means and an adhesive strip. The tamper strip may be a thick panel such as a sheet of semi-rigid foam or thickened plastic material to prevent transfer of an impression of the raised characters through a mailing envelope and/or may transmit a warning impression in response to an attempted transfer.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: March 21, 1995
    Inventor: Lesley Litt
  • Patent number: 5372428
    Abstract: A positive locking mating profile system for plastic bags which bags are made to have an initially open mouth, and wherein once the profiles are engaged and closed, the mouth of the bags can not be opened without giving evidence of tampering and/or without damaging the bags.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: December 13, 1994
    Inventors: Edward C. Bruno, Roger A. Davison
  • Patent number: 5366087
    Abstract: A label is used to seal a package and provide an indication that an end edge of the package has been opened, while also allowing resealing of the package end edge. The label comprises a substrate with top and bottom faces and first and second parallel edges, with indicia (such as price per unit weight, weight, and total price indicia) imaged on the top face. A perforation generally bisects the substrate into generally equally-sized first and second portions, the perforation extending generally transverse to the first and second edges. On the bottom face of the first portion is permanent adhesive (e.g., pressure sensitive), while on the bottom face of the second portion is repositional adhesive. To open the package one tears along the perforation line to detach the second portion of the label from the package, and then tears the first label portion at the package end edge. To reseal the end edge, one places the second label portion over the end edge, the repositional adhesive holding it in place.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: November 22, 1994
    Assignee: Moore Business Forms, Inc.
    Inventor: John C. Bane
  • Patent number: 5360270
    Abstract: A reusable security package is disclosed that includes a closure mechanism for closing a container and for determining whether the container has been opened.
    Type: Grant
    Filed: April 28, 1992
    Date of Patent: November 1, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Roger H. Appeldorn, Robert J. Johnson, Forrest J. Rouser, Robert L. Erwin
  • Patent number: 5352041
    Abstract: A security bag for storing and transporting valuable articles includes an upper pouch and a lower pouch that are not overlapping that prevents unauthorized parties from entering one pouch and hiding such entry with articles in the other pouch. The upper pouch and the lower pouch open at upper ends of the respective pouches. The security bags are useful for storing and transporting currency and negotiable instruments or receipts.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: October 4, 1994
    Assignee: Trigon Packaging Corporation
    Inventors: Murray G. Fullerton, Michael R. Clacy
  • Patent number: 5350238
    Abstract: A security bag (10) comprises front and back portions (14) and (16) welded together and defining an opening (20). The back portion (16) includes a flap (16A) having a line of weakness (22). A void tape (24) is attached to the front portion (14) of the bag either directly or indirectly and the back portion (16) of the bag is provided with a strip (34) of non-contact adhesive positioned so that it can be overlaid by that part of the layer (24) which is not attached to the front portion (14).
    Type: Grant
    Filed: February 17, 1993
    Date of Patent: September 27, 1994
    Assignee: Learoyd Packaging Limited
    Inventor: Geoffrey A. Bolton
  • Patent number: 5346301
    Abstract: The closable bag with offset end seal comprises a layer of plastic folded over itself to create an elongate strip of interconnected pockets which are separable from one another along the strip to create individual bags. Interposed between free overlying ends of the plastic strip is a gasket made of a heat sealable material having a low surface tension and coefficient of friction. A side edge of these three layers is heat sealed and scored to provide a tamper indicating strip which must be removed to open the bag. Slightly lateral to this strip is a section of the bag where the gasket is heat sealed along its length to one of the layers of plastic, with a remaining inwardly extending portion of the gasket being free to move away from the layer to which it sealed, creating an inwardly directed flap. On a surface of the unattached layer of plastic facing the gasket are provided two spaced apart longitudinal strips of adhesive which cause engagement between the layer of plastic and the gasket flap.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: September 13, 1994
    Assignee: Paul W. Scarberry
    Inventors: Paul W. Scarberry, Barrie A. Bray
  • Patent number: 5330269
    Abstract: A packaging pouch having a laminate of easily peelable tapes heat-bonded to the package body where an opening of the package is to be formed. The laminate has outer heat-bonding layers heat-fused to heat-sealing layers of the package body.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: July 19, 1994
    Assignee: Toyo Aluminum Kabushiki Kaisha
    Inventors: Mamoru Kamada, Masaei Ibi, Tomonobu Sekiguchi, Masashi Yamamoto, Noboru Andoh, Kenichi Itakura
  • Patent number: 5318364
    Abstract: A closure system for a plastic security bag comprises an access opening of the security bag formed by the displaced top edges of the front and rear panels. An adhesive laden carrier film regulates access thereto. The film has an internal line of serration and is affixed to the bag below the top edge of the front panel. A band of temperature-sensitive "hot melt" is supplied therealong. Upon removal of the releasable liner the carrier film is positioned such that the hot melt contacts the rear panel of the bag with the edges of the carrier film aligned with the edges of the rear panel to preclude purchase of the edges. The bag bears ink indicia which deteriorates upon chemical substances being sprayed thereon in an attempt to fracture the adhesive bond. The flush edges of the bag and/or the water-based indicia preclude an undetected, undesirable access to the bag. The bag has scalloped marginal edges which are separable if one attempts to enter the bag at the marginal edges.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: June 7, 1994
    Inventor: David T. Raden
  • Patent number: 5286110
    Abstract: An improved tamper-resistant seal for use with generally U-shaped flexible closure devices, such as tabs and wire wraps, comprising an annular band dimensioned to encircle a flexible closure device and heat-shrinking the band to closely fit about the closure device to prevent removal of the closure device without prior destruction of the annular band.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: February 15, 1994
    Inventors: Mickey Benson, Donald P. Hilliard
  • Patent number: 5224779
    Abstract: A reclosable, hermetically-sealed flexible package which has an inner, hermetic peel seal and a reclosure seal comprised of interlocking closure strips is provided with a tamper-evident feature located peripheral to the reclosure seal. The tamper-evident feature must be visibly disrupted to gain access to the reclosure seal.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: July 6, 1993
    Assignee: Oscar Mayer Foods Corporation
    Inventors: Bjorn J. Thompson, Gerald O. Hustad, Todd S. Marnocha
  • Patent number: 5217307
    Abstract: This invention provides tamper-safety labeling that can easily be applied to a container and closure means to disclose the opening of the container. This labeling is a single piece one that has a generally parallel perforated tear strip and tab formed from the face stock and that allows the tear strip and usually perforated member to be formed and laminated to a release liner having a release thereon at least commensurate with adhesive positioned in the laminate on each side of the tear strip in the face stock. Also, the tear strip may run at any angle from the horizontal plane of the container to permit the tear strip to be removed to present different arrangements of the labeling on the container and may become a product or origin identification for the container.
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: June 8, 1993
    Assignee: Morgan Adhesives Company
    Inventor: Jack M. McClintock
  • Patent number: 5205649
    Abstract: Liquidtight containers which are so integrated at the upper ends thereof as to keep fluids from escaping through the gaps between the front and back walls of the container. The closure system of the bag is designed to surround the upper end of the bag with adhesive when the bag is sealed so that fluid cannot escape between the main part of the bag and the closure. The closure system can also be designed so that an attempt to open the bag and then reseal it will be readily evident.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: April 27, 1993
    Assignee: Trigon Packaging Corporation
    Inventor: Murray G. Fullerton
  • Patent number: 5188461
    Abstract: A packing comprising first and second opposed surfaces in a closure area of the packing has profiled portions secured to and extending over each of the opposed surfaces, which profiled portions are adapted to be releasably interengaged to permit connection and disconnection of the opposed surfaces. The profiled portions are each formed integrally with an outer layer of a strip material secured to the associated one of the opposed surfaces. The outer layer of the strip material is formed of a material well suited for forming a peel seal weld with the other opposed surface of the packing, such as a portion of the outer layer of the opposing strip material. The outer layer of each strip material is secured to the one of the first and second opposed surfaces via a base layer of the strip material to which the outer layer is secured by means of a non-peel seal type connection. As a result, the sheete material of the packing, a bag for example, need not be formed of a peel seal weldable material.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: February 23, 1993
    Assignee: Schurpack, Inc.
    Inventor: Leif B. Sorensen
  • Patent number: 5174659
    Abstract: An initially closed openable and reclosable closure for flexible bags, the closure having a tearable line of weakening defining an openable elongated slit in a flexible film of one face of the flexible bag and pressure sensitive adhesive provided on the exterior of the one face of the flexible bag on opposite sides of the openable elongated slit whereby the tearable line of weakening may be ruptured thereby opening the elongated slit and providing access to the interior of the bag. The opened elongated slit may be reclosed by folding the bag to bring the adhesive into confronting relation with itself on opposite sides of the elongated slit to form an adhesive-to-adhesive closure thereby closing the elongated slit. Reclosable flexible bags of this type reclosed in a tamper evident manner are especially useful in medical and health care fields.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: December 29, 1992
    Assignee: Vonco Products, Inc.
    Inventor: Louis L. Laske
  • Patent number: 5134875
    Abstract: A container for breath alcohol simulator solution comprising a self-standing 4 mil polyethylene bag having a removable label designating the quantity and calibration concentration of the fluid contained within the bag. The label may be removed from the bag and affixed to the breath alcohol simulator. A plurality of the filled bags are packaged in an upstanding position within a front and top opening carton having a pivoting lid for transportation, storage and use. The bag may be torn open and the fluid contents poured into a cavity within the breath alcohol simulator, or the bag may be opened and placed partially or entirely within the breath alcohol simulator with a gas inlet extending into the bag beneath the fluid level. Alternatively, the bag may be placed within a breath alcohol simulator having a gas inlet or outlet equipped to puncture the bag, with the simulator solution then being discharged into the cavity, or the air passed through the simulator solution within the bag.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: August 4, 1992
    Inventors: Richard E. Jensen, Donald H. Nichols
  • Patent number: 5135313
    Abstract: A chain-of-custody bag is disclosed which provides for the sealing of a specimen taken at a remote location within the bag for transportation to an analysis site. The specimen bag advantageously includes a specimen label conveniently mounted to the specimen bag which is removable therefrom for use on the specimen when placed in the specimen bag. More specifically, the specimen label is provided on top of a protective backing layer that is further provided to cover an adhesive band that acts as the closure for sealing the bag once a specimen is placed therein. The result is that the specimen label can be conveniently located on the bag to be adhered to the specimen and inserted within the bag, and the bag can be sealed thereafter.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: August 4, 1992
    Assignee: GBF Medical Group
    Inventor: Danny C. Bowman
  • Patent number: 5108194
    Abstract: A closure system for a plactic security bag comprises an access opening with an adhesive laden cellophane carrier film regulating access thereto. The film is affixed to the bag below the lower edge of the access opening and has a band of "hot melt" therealong. Upon removal of the releasable liner the carrier film is positioned such that the "hot melt" spans the access opening and closes the same. Lacquer coating at the ends of the opening preclude undesirable sticking of the releasable liner to the security bag. The ends of the access opening are "heat sealed" and cooperate with the adhesive to preclude leakage of liquid through the closed opening. Entry of the bag is accomplished by tearing the carrier film and/or bag proper which is evident to an observer.
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: April 28, 1992
    Inventor: David T. Raden
  • Patent number: 5103979
    Abstract: A package is provided which incorporates a peel seal area or areas that provide readily detectable evidence that the package has been opened or tampered with. Message indicia are provided at the peel seal, and the appearance of the message indicia changes when the peel seal area, which has a contact clarity condition when sealed, is broken resulting in the onset of an opacity condition which thereby obscures message indicia and/or makes message indicia visible in order to inform a consumer or potential purchaser that the peel seal has been broken.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: April 14, 1992
    Assignee: Oscar Mayer Foods Corp.
    Inventor: Gerald O. Hustad
  • Patent number: 5077001
    Abstract: A tamper-evident seal for a plastic envelope with a pocket and closing flap having first adhesive sealing means for sealing the flap to the envelope and a second, tamper-evident sealing means adhering to the end of and extending beyond the end of the flap which also adheres to the envelope after the flap is closed and sealed. The tamper-evident sealing means has a pattern of regions, some of the regions having visually distinct reflective characteristics from others of the regions. The tamper-evident means can also have a pearlaceous material therein or thereon.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: December 31, 1991
    Inventor: Kenneth R. Makowka
  • Patent number: 5077064
    Abstract: A recloseable, peggable package wherein the enclosed product is packaged between first and second package panels includes two package extensions and a recloseable seal strip interior of the package extensions. The package panels are hermetically sealed around their periphery and further sealed to the recloseable seal strip exterior of the hermetic seal. The first and second package panel extensions are sealed exterior of the recloseable seal strip and the extensions contain at least one opening extending therethrough which enables the package to be vertically displayed on a display member.
    Type: Grant
    Filed: April 4, 1990
    Date of Patent: December 31, 1991
    Assignee: Oscar Mayer Foods Corporation
    Inventors: Gerald O. Hustad, Brian P. Lawless, Todd S. Marnocha
  • Patent number: 5065602
    Abstract: A flexible-wall lockable container for securing valuables. The lockable container includes a container and a locking member. The container includes an interior portion, an access opening, and a closure member. The closure member has an open position permitting access to the interior portion of the container, and a closed position where the closure member closes the access opening. The locking member includes a body and a retainer member slidably attached to the body. The retainer member has a locked position with respect to the body for locking the closure member in the closed position and an unlocked position for allowing the closure member to move between the closed and open positions. The body includes a receiver having two lower lugs extending from the receiver. The retainer member includes a flange having two upper lugs extending from the flange.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: November 19, 1991
    Assignee: A. Rifkin Co.
    Inventors: George W. Williams, Arnold S. Rifkin
  • Patent number: 5064664
    Abstract: A package is provided which incorporates a peel seal area or areas that provide readily detectable evidence that the package has been opened or tampered with. Message indicia are provided at or near the peel seal, and the appearance of the message indicia changes when the peel seal area, which has a contact clarity condition when sealed, is broken resulting in the onset of an opacity condition in a background area but not in an indicia area in order to inform a consumer or potential purchaser that the peel seal has been broken. The peel seal area is provided by impressing onto the package a heat seal bar having message indicia engraved thereinto.
    Type: Grant
    Filed: April 4, 1990
    Date of Patent: November 12, 1991
    Assignee: Oscar Mayer Foods Corporation
    Inventors: Gerald O. Hustad, Paul A. Zerfas
  • Patent number: 5060848
    Abstract: A seal comprising a substrate which is at least translucent to light having a transparent masking material disposed in an indicia-defining pattern on the inner surface of the substrate. A colorant layer is disposed over the masking material and extends beyond the pattern. There is an adhesive disposed at least over the area of the colorant. The present invention also includes a tamper indicating opaque container such as an envelope or carton has a window defined within the closure flap. A translucent or transparent panel overlaying the window has a transparent masking material of low adhesion properties disposed in an indicia-defining pattern. A colorant layer is disposed over the transparent masking material and an adhesive in turn is disposed over the colorant layer and transparent masking material.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: October 29, 1991
    Assignees: Frederick R. Ewan, Robert E. Ozimek
    Inventor: Frederick R. Ewan
  • Patent number: 5056930
    Abstract: A disposable, self-sealing pouch assembly defines a specimen-receiving enclosure and an associated pocket for receiving an identification card or the like. The assembly preferably includes first, second, and third rectangular piles of transparent plastic film. The first and second plies are joined at peripheral portions thereof to define a specimen-receiving enclosure with an access opening defined by the second ply providing access to the interior enclosure. The third ply is joined to the second ply and defines a card-receiving pocket therewith. Pressure-sensitive adhesive provided at the access opening effects self-sealing of the assembly, with the assembly configured to close the card-receiving pocket upon closing and sealing of the specimen-receiving enclosure.
    Type: Grant
    Filed: March 5, 1991
    Date of Patent: October 15, 1991
    Assignee: Hargro Lamcote, Inc.
    Inventor: Thomas Mestetsky
  • Patent number: 5024537
    Abstract: Straight zipper sections are attached to a carrier tape for attachment to the mouth end of a bag. The straight zipper sections are mounted on the continuous tape in longitudinal series orientation, or in spaced side-by-side orientation across the length of the tape. The tape in either case may be fan folded and packed into a storage or shipping container. The tape provides for closing attachment across the mouth of a bag to provide a security membrane and/or a tamper evident structure required to be ruptured to gain initial access into the bag after the zipper is opened.
    Type: Grant
    Filed: January 8, 1990
    Date of Patent: June 18, 1991
    Assignee: Zip-Pak Incorporated
    Inventor: Paul A. Tilman
  • Patent number: 4998666
    Abstract: A seal comprising a substrate which is at least translucent to light having a transparent masking material disposed in an indicia-defining pattern on the inner surface of the substrate. A colorant layer is disposed over the masking material and extends beyond the pattern. There is an adhesive disposed at least over the area of the colorant. The present invention also includes a tamper indicating opaque container such as an envelope or carton has a window defined within the closure flap. A translucent or transparent panel overlaying the window has a transparent masking material of low adhesion properties disposed in an indicia-defining pattern. A colorant layer is disposed over the transparent masking material and an adhesive in turn is disposed over the colorant layer and transparent masking material.
    Type: Grant
    Filed: March 31, 1989
    Date of Patent: March 12, 1991
    Assignees: Frederick R. Ewan, Robert E. Ozimek
    Inventor: Frederick R. Ewan
  • Patent number: 4988547
    Abstract: A bag having a front panel and a rear panel having respective side and bottom portions sealed together leaving an opening in the bag for access to the interior thereof. The rear panel extends beyond the opening to form a flap that can be folded over the opening. A first area of adhesive means is carried by the rear panel, i.e., the flap, and is adapted to secure the panels together to close the opening of the bag by bonding to a second area of adhesive means carried by the front panel. Each adhesive means comprises a backing bearing a layer of adhesive on one major surface thereof, and each is bonded to its respective panel by means of the second major surface of said backing, which second major surface is bonded to the material of its respective panel by means of heating, fusing, or the like.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: January 29, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Leonard M. Voto, Jr., Shari J. Wilson
  • Patent number: 4983047
    Abstract: A security envelope for transporting confidential papers or money is disclosed having a high degree of security, being easy to close and seal as well as simple to manufacture. The envelope of the invention is provided with a closure and seal device having a first part extended along one side of the opening thereof, external of the envelope, such part being formed with a series of long pins distributed along its length. The pins pass through both sides of the envelope along a line adjacent to the opening to be received and locked in locking sockets formed in a second part extended along the opening on the other side of the envelope. The two parts of the closure and seal device are preferably hinged together along corresponding londitudinal edges so that when closed, the hinge lies along the opening so as to prevent access to the interior of the envelope through the spaces between the pins.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: January 8, 1991
    Inventor: Eduardo D. L. C. Netto
  • Patent number: 4971454
    Abstract: A bag structure includes a tubular bag body closed at one end and at its edges but open at the bag top. A top closure is affixed to the bag body covering the bag top. The bag body includes opposite wall panels which include a opposite outer layers and opposite inner layers, in which the outer layers are formed from a material that is more readily fusible than the material of the inner layers. The top closure includes opposite attachment flanges composed of a material that is more readily fusible to the outer layer than the inner layer. In one specific embodiment, a heated pressure bar is applied to heat seal the attachment flanges of the top closure to the outer layers of the bag body, while the inner layers of the wall panels remain intact and are not fused together. The inner layer material has a fusion temperature higher than the temperature at which the outer layers and top closure attachment flanges fuse.
    Type: Grant
    Filed: November 16, 1989
    Date of Patent: November 20, 1990
    Assignee: KCL Corporation
    Inventors: Mark E. Branson, Paul F. Edelman
  • Patent number: 4966470
    Abstract: A reclosable, hermetically-sealed flexible package which has an inner, hermetic peel seal and a reclosure seal comprised of interlocking closure strips is provided with a tamper-evident feature located peripheral to the reclosure seal. The tamper-evident feature must be visibly disrupted to gain access to the reclosure seal.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: October 30, 1990
    Assignee: Oscar Mayer Foods Corporation
    Inventors: Bjorn J. Thompson, Gerald O. Hustad, Todd S. Marnocha
  • Patent number: 4964739
    Abstract: A tamper evident bag having a non-reusable frangible fastener profile assembly comprising two sets of lockable fastener profile elements specially constructed to manually lock together without the use of tools, and which once locked cannot be forcibly pulled apart. The bag includes a frangible connector bridge which will break away when the bag is opened indicating that the bag has been tampered with. The construction of the fastener elements also assures proper alignment of the lockable fastener profile elements across the length of the upper portion of the bag wall panels, making interlocking closure easy when pressure is applied on the outer walls of the bag behind the fastener profile elements.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: October 23, 1990
    Assignee: KCL Corp.
    Inventors: Mark E. Branson, Paul F. Edelman
  • Patent number: 4944603
    Abstract: A flexible, bag-like package which includes an access opening containing a reclosable seal at or near its top edge, is encompassed by a tamper-evident band. The band is bonded to the front and back wall panels of the package and extends across the access opening. Attempts to remove the band in order to open the package will result in disruption of the band or the wall panels.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: July 31, 1990
    Assignee: Oscar Mayer Foods Corporation
    Inventors: Darrell G. Cornish, Timothy G. Mally, Daniel A. Thiemann, Bjorn J. Thompson
  • Patent number: 4941196
    Abstract: A security bag includes a pair of overlapping wall panels joined at their bottom and side edges to define an opening at the top of the wall panels for carrying money and other items. One of the wall panels includes a receipt strip extending from the top of the panel and connected to the wall panel along a perforation line. The receipt strip and one of the wall panels each carry an identical identification number. The receipt strip is removable from the security bag by severing along the perforation line. A closure flap is provided for closing the opening of the bag when the receipt strip is removed. The closure flap includes a strip of tape having an adhesive on one surface that is adhered at a lower attachment portion of the tape to one wall panel. A release liner covers the adhesive on an upper sealing portion of the tape and is readily removable to expose the adhesive for adhering the closure flap to the other wall panel to close the bag opening.
    Type: Grant
    Filed: November 1, 1988
    Date of Patent: July 10, 1990
    Assignee: Kcl Corporation
    Inventors: Paul F. Edelman, Cynthia M. Nulliner
  • Patent number: 4937040
    Abstract: A security deposit bag for receipt of articles and including adhesive closure means for releasably enclosing the opening of the bag. The adhesive closure means includes means for forming indicia in the adhesive closure means if the bag is opened at substantially below room temperature after being sealed.
    Type: Grant
    Filed: March 3, 1989
    Date of Patent: June 26, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Bruce A. Holcomb, Shaun D. McCracken, Bryan J. McGinnis
  • Patent number: 4932791
    Abstract: A closure seal and method for envelopes having front and back panels joined along bottom and side edges and in which a release liner strip delimits overlying marginal edges along the top of the panels. The liner strip initially covers a pressure sensitive adhesive band in the top marginal edge of one of the panels and extends through the side edge junctures of the panels to enable removal of the liner strip and securement of the top margins by the pressure sensitive adhesive band. Registered lines of perforations are formed across the top portion of both panels below the bottom edge of the release liner strip to define a tear line for opening the envelope after it has been sealed in embodiments not intended for liquid contents. The lines of perforations are omitted in a liquid containing envelope embodiment wherein the adhesive band joins with fused side edges of the envelope.
    Type: Grant
    Filed: May 11, 1989
    Date of Patent: June 12, 1990
    Assignee: Uniflex, Inc.
    Inventor: Kurt W. Vetter
  • Patent number: 4931327
    Abstract: A tamper-evident film includes a hydrocarbon polymer core layer (a) having an upper face and a lower face; an oriented tamper-evident layer applied to at least the lower face of core layer (a), layer (b) being fabricated from a mixture of a polyolefin and a filler of particles which induce cavitation upon orientation, layer (b) having an internal cohesiveness which is less than the internal cohesiveness and bonding strength of packaging adhesives and heat seals; and, an oriented skin layer (c) applied to the upper face of core layer (a) if layer (b) has not been applied thereon, layer (c) being hydrocarbon polymer. A tamper-evident package seal and package are also provided.
    Type: Grant
    Filed: June 14, 1989
    Date of Patent: June 5, 1990
    Assignee: Mobil Oil Corporation
    Inventors: Leland L. Liu, Michael T. Heffelfinger, Donald G. Whyman
  • Patent number: 4927271
    Abstract: A tamper evident recloseable bag is disclosed having two opposing wall panels, a recloseable fastener profile assembly extending across the upper portion of the wall panels and a hooded closure enveloping the entire upper portion of the wall panels. The hooded closure arrangement seals the bags closed until intentional opening of the bag is desired, at which time the hooded closure can be removed by lightly pulling it in an upwardly direction. The removed hooded closure visually indicates the opened condition of the bag.
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: May 22, 1990
    Assignee: KCL Corporation
    Inventor: Mark E. Branson
  • Patent number: 4923309
    Abstract: A package has wall panels defining a product receiving space and providing a bag mouth arrangement between upper end portions of the wall panels which have a hermetic peel seal and a reclosable fastener with a tamper evident tear-off strip closing the upper ends of the upper portions. The tear-off strip has at least one digitally engageable ear to facilitate tearing off of the strip.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: May 8, 1990
    Assignee: Illinois Tool Works
    Inventor: Donald L. VanErden
  • Patent number: 4892414
    Abstract: A bag with an openable mouth carries a reclosable extruded plastic zipper inside the mouth. The zipper has complementary profiles separably interlockable in a closed condition of the zipper. A gasket flange structure is separably sealingly grippingly interengageable by and between the profiles in the closed condition of the zipper, and may also serve as a tamper evident or tamper discouraging device.
    Type: Grant
    Filed: February 6, 1989
    Date of Patent: January 9, 1990
    Assignee: Minigrip, Inc.
    Inventor: Steven Ausnit
  • Patent number: RE34554
    Abstract: A bag with an openable mouth carries a reclosable extruded plastic zipper inside the mouth. The zipper has complementary profiles separably interlockable in a closed condition of the zipper. A gasket flange structure in separably sealingly grippingly interengageable by and between the profiles in the closed condition of the zipper, and may also serve as a tamper evident or tamper discouraging device.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: March 1, 1994
    Assignee: Minigrip, Inc.
    Inventor: Steven Ausnit