Shrink-type Wrapper Patents (Class 206/432)
  • Patent number: 4304332
    Abstract: A novel package means especially useful in packaging a plurality of canned goods, e.g. soft drinks and the like. The package comprises two tensioned film wraps, arranged at right angles to one another about the package item, and wherein one wrap serves as a handle means.
    Type: Grant
    Filed: October 26, 1979
    Date of Patent: December 8, 1981
    Inventor: Bernard R. Danti
  • Patent number: 4300681
    Abstract: A packaging device and package created by the packaging device with a plurality of bottles. In a preferred embodiment a highly stretched tubular sleeve of resilient elastic plastic material is positioned about an array of bottles so that the upper extremity of the tube extends in a stretched condition over the shoulder of the bottles as well as substantially covering the cylindrical body portion of the bottles and exerts a resilient compressive force on all areas of contact between the sleeve and bottles to effectively unitize the package.
    Type: Grant
    Filed: December 18, 1980
    Date of Patent: November 17, 1981
    Assignee: Illinois Tool Works Inc.
    Inventors: Mindaugas J. Klygis, Edward L. Benno
  • Patent number: 4289236
    Abstract: This invention relates to a case can package wherein two twelve can-one-half case can packages are joined to form a one case can package by means of an overwrap. The package film of the one-half case can packages is provided on the outer surface thereof with a suitable overprint in the form of a resist which prevents bonding of the overwrap film thereto. The overwrap film interlocks with the cans of the two one-half case can packages to form a readily handleable one case package unit. The overwrap film is readily removable to present two one-half case can packages for individual sale. The overwrap joining the two one-half case can packages eliminates the need for the usual paper board tray, which is quite expensive, and at the same time provides for improved stacking of the can packages in case lots on pallets.
    Type: Grant
    Filed: September 26, 1979
    Date of Patent: September 15, 1981
    Assignee: Ganz Brothers, Inc.
    Inventors: Robert H. Ganz, John H. Myers
  • Patent number: 4284196
    Abstract: It has been found that fluid, semi-fluid, plastic products as well as powder or granular products packed in plastic tubes have caused great problems in tropical countries due to the change in temperature between day and night. In some cases the products have expanded and burst open the closure of the plastic tube so that the contents ran out or, due to their constituents, the products have caused deterioration of the protective properties of the plastic tube. By choosing a plastic tube or olefin plastic and sealing said plastic tube with closures of olefin plastic, as well as orientating the plastic molecules in the tube in both axial and radial direction, a plastic seal is obtained which is not affected by the products enclosed and which also resists expansion of the products without rupturing.
    Type: Grant
    Filed: September 11, 1979
    Date of Patent: August 18, 1981
    Assignee: Nitro Nobel AB
    Inventor: Conny B. Lagerkvist
  • Patent number: 4264010
    Abstract: A heat shrinkable polyvinyl chloride film which shrinks more than 60% in one direction or more than 80% as an area shrinkage is prepared by stretching a film comprising 5 to 20 wt. parts of a vinyl chloride-vinyl acetate type copolymer having a vinyl acetate content of 10 to 15 wt. % and an average polymerization degree of more than 700 and 100 wt. parts of polyvinyl chloride at a special high stretch ratio.
    Type: Grant
    Filed: May 3, 1979
    Date of Patent: April 28, 1981
    Assignee: Mitsubishi Plastics Industries, Ltd.
    Inventors: Norio Yoshiga, Hiroshi Nakamura, Mototaka Ohmura
  • Patent number: 4254869
    Abstract: This invention relates to a method of utilizing a shrink wrap film to shrink wrap a load or group of articles or packages having a surface portion formed of the same material as the shrink wrap film. The load or group is assembled and wrapped with the outer ply of each article or package formed of the shrink wrap film being coated with a release coating which will withstand the heat shrinking and will not fuse to any part of the load or group when subjected to film-shrinking heat when the group is overwrapped with similar film. The wrapped load is thereby heated to shrink the film or laminate about the load, and may thereafter be easily removed.
    Type: Grant
    Filed: July 12, 1979
    Date of Patent: March 10, 1981
    Assignee: Owens-Illinois, Inc.
    Inventor: Robert J. Heier
  • Patent number: 4247663
    Abstract: A heat shrinkable polyvinyl chloride film which shrinks more than 60% in one direction or more than 75% as an area shrinkage is prepared by stretching a film comprising 5 to 25 wt. parts of a methyl methacrylate type copolymer and 100 wt. parts of polyvinyl chloride at a special high stretch ratio.
    Type: Grant
    Filed: February 14, 1979
    Date of Patent: January 27, 1981
    Assignee: Mitsubishi Plastics Industries Limited
    Inventors: Norio Yoshiga, Hiroshi Nakamura, Mototaka Ohmura
  • Patent number: 4224416
    Abstract: There is disclosed an environmentally degradable plastic composition comprising an organic polymeric material having dispersed therein at least one amine compound as a readily autoxidizable organic substance.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: September 23, 1980
    Assignee: Owens-Illinois, Inc.
    Inventors: Lynn J. Taylor, John W. Tobias
  • Patent number: 4212955
    Abstract: There is disclosed an environmentally degradable plastic composition comprising an organic polymeric material having dispersed therein at least one trialkyl ortho ester as a readily autoxidizable organic substance.
    Type: Grant
    Filed: January 19, 1978
    Date of Patent: July 15, 1980
    Assignee: Owens-Illinois, Inc.
    Inventors: John W. Tobias, Lynn J. Taylor
  • Patent number: 4196808
    Abstract: Sequential closure interlock devices for and in combination with dispersing container packages having multiple product compartments provided with parallel neck finishes lying generally in a single plane and separate closure device for each neck finish, especially for use with single use premeasured multiple component products to help ensure opening of the compartments and dispensing of the product components in a proper sequence.
    Type: Grant
    Filed: March 31, 1978
    Date of Patent: April 8, 1980
    Assignee: The Procter & Gamble Company
    Inventor: John Pardo
  • Patent number: 4183441
    Abstract: A container for pressurized products wherein the container is formed of first and second container halves joined in a generally mid-height peripheral seam. Under abusive handling, the seam could open and a rupture type failure may occur. A shrunk plastics material film wrapper is applied along the central portion of the container in overlying relation to the peripheral seam and serves to permit controlled venting of the pressure from within the container in the event of such seam failure of the container per se.
    Type: Grant
    Filed: July 12, 1978
    Date of Patent: January 15, 1980
    Assignee: The Continental Group, Inc.
    Inventor: Paul M. Erlandson
  • Patent number: 4170294
    Abstract: A generally flat based tray is used for both shipping and display of internal combustion engine oil filters. The typical oil filter has female threads in one end of a cylindrical base and utilizes an annular gasket on that cylindrical base to make a seal with the engine. The generally flat base of the tray includes frusto-conical male projections which are laterally deformable so that the threads of the oil filter are screwed onto these projections and deform them to establish formed threads on the projections which secure the oil filter to the tray and also trap the annular gasket between the oil filter and the tray base. The entire package may be shrink wrapped with a transparent material to aid in securing the filters to the tray especially during the rough handling of shipping. The trays may be utilized as a display device by being laid flat on a horizontal surface or may be hung by keyhole slots to be displayed on a vertical surface.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: October 9, 1979
    Inventor: Robert J. Zelinski
  • Patent number: 4130201
    Abstract: This disclosure has to do with a bottle package of the type wherein at least four bottles arranged in two columns are formed into a package by wrapping a heat shrinkable plastics material film thereabout and effecting shrinking of that film to tightly grip bottles. In order to facilitate the carrying of the package, finger receiving openings are formed on opposite sides of central ones of the bottles with the film engaged over the top of the central ones of the bottles between the finger receiving openings defining a carrying strap. The shrinking of the film is effected in a shrink tunnel where hot air is directed against the film. The finger receiving openings are formed in the film between adjacent pairs of bottles after initial shrinking of the film has occurred, but before the film reaches the end of the shrink tunnel so that after slitting of the film occurs, there is further shrinking of the film, primarily down between adjacent pairs of bottles.
    Type: Grant
    Filed: October 19, 1976
    Date of Patent: December 19, 1978
    Assignee: Ganz Brothers, Inc.
    Inventor: Joseph W. Duerr
  • Patent number: 4119202
    Abstract: A package for products grouped or assembled for ease of handling, shipping, etc., which includes an outer protective plastic cover that may be selectively ruptured incident to removal from the assembly of some products, while a desired packaged condition is nevertheless effectively maintained for the remaining, yet unused, products. To a significant extent, said effectively maintained packaged condition is the result of wall constructions in the individual product containers which serve as internal supports for the outer plastic cover.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: October 10, 1978
    Inventor: Lee J. Roth
  • Patent number: 4116331
    Abstract: A carrier is disclosed for interconnecting an array of cans or the like to hold them together as a unitary package. Preferably the carrier is made from a sheet of a material such as polyvinyl chloride that may be cut, expanded and set in its expanded state, then later after being placed around an array of cans, shrunk to interconnect the cans and form a package. Because of the design of the carrier and its method of application to an array of cans, a cover film may be attached by the carrier over the array of cans to keep the can tops clean. Machines and methods are disclosed for forming, transporting and applying in a rapid and economic manner, a web of such carriers to a series of cans or the like.
    Type: Grant
    Filed: November 7, 1975
    Date of Patent: September 26, 1978
    Inventors: Byron V. Curry, Teofil L. Bonkowski
  • Patent number: 4094406
    Abstract: A package for a group of articles, particularly bottles, cans, or the like, which is open at both ends and which is wrapped around the group of articles, and which consists of a substantially rectangular blank, formed from a film of plastic material having end portions to which strips of paperboard are secured. Locking apertures are formed in one end portion and locking tongues are formed in the other end portion and are inserted into the locking apertures whereby two oppositely disposed margins of the blank are adapted to be joined together to secure the wrapper.
    Type: Grant
    Filed: March 28, 1977
    Date of Patent: June 13, 1978
    Assignee: The Mead Corporation
    Inventor: Jurgen Zietzschmann
  • Patent number: 4078659
    Abstract: A thermoplastic film package having a plurality of tightly held articles, such as beverage bottles, is provided with a thermoplastic film handle and with an upper surface permitting opening of the package in a manner which facilitates removal of all or a portion of the articles from the package and return of articles to the package. The positions of attachment of the handle to the package in relation to the opened upper surface of the package enable the handle to assist in maintaining the integrity and usefulness of the package after it is opened, even though it is made of thin thermoplastic film. The opened package is thus suitable for carrying all or only a portion of the contents by using the handle. The end portions of the handle can be attached to the package by a process involving preliminary tacking and subsequent heating by contact with a hot gas in a film-shrinking operation.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: March 14, 1978
    Assignee: Pepsico, Inc.
    Inventor: Jurgen G. Rensner
  • Patent number: 4077516
    Abstract: Packages are now being formed by applying plastic materials of the type which shrink upon being heated to form a casing or wrapper in which a plurality of containers are encased for ease in handling. The plastics material is very thin and in the form of a film and the usual articles packaged therein are containers, most particularly cans. A limited number of articles is presently being incorporated in such packages. It is proposed to join together at least two of such packages to form a further and larger package utilizing strips which will bond to the plastics material of the casings and wherein at least one strip is provided with an extension in the form of a pull tab and wherein when the one strip is pulled relative to the package, it will result in the tearing of portions of the casings so as to open the individual packages and make the articles therein readily available for use.
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: March 7, 1978
    Assignee: Ganz Brothers, Inc.
    Inventor: Joseph W. Duerr
  • Patent number: 4062448
    Abstract: An internal support member for a shrink wrapped package of identical articles arranged in a layer or layers on a base comprises a single generally rectangular sheet of relatively rigid material formed with at least two preferably six parallel folds that extend vertically when the sheet is stood on edge on the base. The folds define compressive load-bearing side portions which are disposed longitudinally and laterally between the articles in the layer to provide a stable non-tilting support for a similar package stacked thereon.
    Type: Grant
    Filed: February 10, 1976
    Date of Patent: December 13, 1977
    Assignee: The Procter & Gamble Company
    Inventor: James Meighan
  • Patent number: 4036362
    Abstract: A package for articles such as cans, bottles, and the like, comprising a corrugated paperboard tray, a film sheet covering said articles, and an adhesive connecting opposite ends of said film sheet to opposed walls of said tray. The sheet may be heat shrunk to hold said articles to the tray and have opposed fully or partially closed ends which overlap the sides of the articles. The sheet may be stretch film that does not require heat shrinking, or it may be plain paper. The package may include an inverted top tray, with or without holes that receive the tops of the articles, to keep the articles in vertical alignment. The package may be double tier.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: July 19, 1977
    Assignee: Huntingdon Industries Incorporated
    Inventor: John E. Ullman
  • Patent number: 3997056
    Abstract: A container having a base, a sidewall extending from the periphery of the base and defining an open top, and a closure sealing the open top, is provided with a secondary closure. The secondary closure comprises a band of heat-shrinkable thermoplastic adhesive tape extending around the periphery of the container at the level of a seam formed by the closure and the sidewall such that the adhesive side faces the container. The tape is heat-shrunk into compressive engagement with the container, and a portion of the tape is adhesively attached to the closure, with another portion of the tape being adhesively attached to the sidewall. One end of the tape overlaps an opposite end of the tape and is adhesively secured thereto. A gripping tab is formed of juxtaposed, folded, integral adhesively attached portions of the tape, and is positioned inwardly of the overlapping tape end which adhesively retains the gripping tab in place.
    Type: Grant
    Filed: May 8, 1975
    Date of Patent: December 14, 1976
    Assignee: Owens-Illinois, Inc.
    Inventor: Martin Mueller
  • Patent number: 3991880
    Abstract: A package for non-round bottles wherein the bottles are aligned in rows, each bottle having parallel flat surfaces on opposed sides to mate with like flat surfaces of other such bottles, a tray, a divider member between rows of the bottles and a film member enveloping and tightly holding the bottles, tray and divider together.
    Type: Grant
    Filed: August 15, 1975
    Date of Patent: November 16, 1976
    Assignee: Anderson, Clayton & Co.
    Inventors: Andrievs Austrins, Daniel A. Leo
  • Patent number: 3954177
    Abstract: A multi-pack container package is provided comprising at least two containers arranged in a substantially abutting array and a flexible plastic film about and retaining said array of containers, said film having upper end portions thereof infolded to form integral finger grip pockets for grasping and carrying the package.
    Type: Grant
    Filed: February 8, 1974
    Date of Patent: May 4, 1976
    Assignee: Union Carbide Corporation
    Inventor: Clifford C. Faust
  • Patent number: 3948392
    Abstract: A package is provided comprising a plurality of articles having an upper end portion of smaller cross-section arranged in an abutting array of at least two rows and a flexible plastic film about and retaining said array of articles, said film having portions thereof infolded between the upper end portions of abutting articles of opposite ends of the array of articles whereby an integral reinforced finger grip is formed for grasping and carrying said package. Also provided is a method for making a package comprising enveloping an abutting array of articles, each article having an upper end portion of smaller cross-section, with a flexible plastic film and infolding and tucking portions of said film between the upper end portions of abutting articles at opposite ends of the array of articles whereby means for carrying said package is formed.
    Type: Grant
    Filed: February 8, 1974
    Date of Patent: April 6, 1976
    Assignee: Union Carbide Corporation
    Inventor: Clifford C. Faust