Búsqueda Imágenes Maps Play YouTube Noticias Gmail Drive Más »
Iniciar sesión
Usuarios de lectores de pantalla: deben hacer clic en este enlace para utilizar el modo de accesibilidad. Este modo tiene las mismas funciones esenciales pero funciona mejor con el lector.

Patentes

  1. Búsqueda avanzada de patentes
Número de publicaciónUS3231454 A
Tipo de publicaciónConcesión
Fecha de publicación25 Ene 1966
Fecha de presentación14 Abr 1961
Fecha de prioridad14 Abr 1961
Número de publicaciónUS 3231454 A, US 3231454A, US-A-3231454, US3231454 A, US3231454A
InventoresWilliams Robert Joseph
Cesionario originalCadillac Products
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Cushioning material
US 3231454 A
Resumen  disponible en
Imágenes(1)
Previous page
Next page
Reclamaciones  disponible en
Descripción  (El texto procesado por OCR puede contener errores)

Jan. 25, 1966 R. J. WflLLKAMS 3,231,454

CUSHIONING MATERIAL Filed April 14, 1961 v Q INVENTOR. /4 v 20;; f

United States Patent Ofilice Patented Jan. 25, 1966 3,231,454 CUSHIONING MATERIAL Robert Joseph Williams, Birmingham, Mich., assignor to Cadillac Products, Inc., Warren, Mich, a corporation of Michigan Filed Apr. 14, 1961, tier. No. 103,144 2 Claims. (Cl. 161-110) This invention relates generally to packaging, and more particularly to a novel cushioning material for lining containers or otherwise insulating fragile articles from vibration, physical abuse and shock during handling and the like.

The primary objects of the present invention reside in the provision of a novel and inexpensive cushioning material for the above purpose formed of either one or a plurality of sheets of resilient material, at least one sheet of which is so constructed that uniform static and dynamic cushioning may be effected both by the compressive columnar loading of hollow columnar-shaped projections formed therein and by the pneumatic shock absorbing effect of air trapped within these projections, the latter being provided with vent openings through which the air may pass when a sudden or shock load is applied thereto, whereby fragile or highly finished articles encased thereby will be cushioned and protected or insulated from physical shock, whether disposed within a container or not.

These and other objects of the present invention will become apparent from consideration of the specification taken in conjunction with the accompanying drawing, in which there are shown several embodiments of the invention by way of example, and wherein:

FIGURE 1 is a fragmentary perspective view, partly in section, illustrating the basic element of a cushioning material embodying the principles of the present invention;

FIGURE 2 is a perspective view of a multi-layer modification or adaptation of the cushioning material or" the present invention;

FIGURE 3 is a transverse sectional view of the modification. illustrated in FIGURE 2;

FIGURE 4 is a transverse sectional view illustrating a further modification of the cushioning material of the present invention;

FIGURES 5 and 6 are transverse sectional views illustrating slightly modified versions or" the embodiments illustrated in FIGURES 3 and 4, respectively; and

FIGURE 7 is yet another modification or embodiment of the present invention.

Generally speaking, the cushioning material of the present invention comprises at least one sheet of resilient material having a plurality of hollow projections formed therein and projecting outwardly from one side of the sheet in the same direction, the sheet in the preferred embodiment having a plurality of vent openings therethrough, each of the vent openings being disposed at the outwardly projecting end of one of the projections. As will become apparent, a large number of modifications of the invention are possible by combining one or more sheets of this specific construction in various ways with other sheets, either similarly constructed or simply flat, and by relocating the vent openings therein. Further modifications may be derived either by sealing the individual sheets of a multi-sheet embodiment together, by not sealing these several sheets together, or by using sheets of resilient thermoplastic film material of the type characterized by its retention of a high static charge, whereby the sheets will be attracted to each other by their retained static charges, all as will be more clearly set forth hereinafter.

Referring more particularly to the drawings, there is illustrated in FIGURE 1 a cushioning liner comprising a specially formed sheet of resilient material 10 embodying the principles of the present invention which may be used alone as a very satisfactory cushioning material, or which, as will be described later, may be used in combination with other sheets or layers of material in various combinations to form other embodiments of the invention. As can be seen, sheet 13 is provided with a plurality of hollow projections 12, each of which in this embodiment is of equal size and shape, all of the projections extending in the same direction from the same upper side of sheet 10. Each of the projections 12 is illustrated as being generally frusto-conical in shape so that they may be readily drawn from a suitable forming die. The provision of such draw, however, is not essential to the function of the cushioning element and is primarily for the purpose of facilitating fabrication, although some taper is helpful in increasing the stability of the projections by giving them wider bases. In order to obtain the desired compressive column loading of the sheet material itself the projections are preferably of a generally cylindrical or of steep right frusto-conical shape, and projections having these shapes will be referred to herein as being columnar-shaped.

In order to insure that air may escape from the projections in applications where the sheet 10 is used in conjunction with another surface contacting the bottom side thereof there is provided a bleed or vent opening 14 through the outwardly projecting end of each of the projections. As will be appreciated, vent openings 14 may be formed during the fabrication of the projections themselves, as by means of a suitable die punch or the like.

in order to more clearly understand the manner in which the cushioning liner functions, assume for purposes of explanation it is disposed on the flat bottom of a con tainer and that there is resting thereon and supported thereby an article to be cushione When the container is at rest and the compressive loading of the cushioning liner is purely static, the article will be supported by the column strength of the sheet material defining each of the hollow projections. The resilience, strength, and thickness of the sheet from which it is formed may be chosen so that for a given weight to be supported per unit area of the cushioning material the projections will be slightly compressed or collapsed whereby a cushioning or spring effect will be obtained. When this container in which the cushioning material is provided is handled, or dropped, or otherwise subjected to jolts or physical shock, the impact loading of the projections will cause them to collapse or compress and to tend to flatten out. The air trapped within each of the air pockets defined between the cushioning material and the container by the projections will act as shock absorbers to absorb these impact loads, the vent openings 14- serving as restricting orifices to limit the flow of air from the air pockets so that the shock may be absorbed. While such vent openings may not be necessary in applications where the bottom side of sheet it) is in contact with very porous material, such as porous paper, cardboard, or the like, in applications where a relatively non-porous material is provided in contact with the bottom surface thereof the vent openings are essential to get the desired shock absorbing characteristics.

As will be appreciated, there are presently available a large number of different types of relatively inexpensive sheet material which lend themselves ideally to use with the present invention. The more important criteria for a suitable material from which cushioning material according to this invention may be formed would include resilience, a capacity to be molded or formed into a shape, a capacity to retain its shape and to return to its shape when deformed (i.e., memory), resistance to rupturing, low porosity so as to retain air, and so on. It has been found that a number of thermosplastic films meet these criteria, such as for example polyethylene, polypropylene, polyvinyl acetate, polyvinylidene chloride, and the like. The material, of course, must be such that it may be easily and economically formed into the desired shape. As will be more fully apparent hereinafter, other properties will be important in other specific modifications of the invention. For example, if a thermoplastic material is used, heat sealing may be readily used to join together several sheets to form a multi-layer embodiment of cushioning material. Alternately, if a film material of the type characterized by its retention of a high static charge is utilized, a plurality of sheets of such material may be combined into a multi-layer embodiment simply by means of the attraction of the sheets one for another by their retained static charges.

The essence of the invention lies, therefore, in the provision of a resilient sheet meeting the above criteria and having a plurality of projections therein, each of which is provided with a vent opening. However, as mentioned, one of these sheets may be used in a number of different ways in various cushioning applications. Accordingly, the remainder of the specification and drawing disclose several of these exemplary modifications.

Thus, there is illustrated in FIGURE 2 an embodiment of the present invention wherein a specially formed sheet 1%) is used in conjunction with a second sheet or layer of material 16 positioned in contact with the lower surface of sheet 10. Preferably sheet 16 is either of a similar or of the same material as that from which sheet 10 is formed, and serves the purpose of positively defining air pockets within the hollowed out portions of projections 12. Sheets 10 and 15 may be either loosely contacting each other, as shown in FIGURE 3, or secured together in any one of a number of ways. For example, in FIG- URE 4 there is illustrated an embodiment wherein sheets 10 and 16 are secured together by means of conventional heat seals 17. These heat seals may be so arranged as to seal the two sheets together all the way around the periphery of each of the recesses formed in the lower side of sheet 10 by projections 12, or just partially therearound. It is not essential that a completely sealed air pocket be formed, so long as there is some resistance to the escape of air therefrom, whereby the desired pneumatic cushioning effect may be obtained. Alternately, if a film material of the type characterized by the retention of a high static charge is utilized, the two sheets will be attracted together throughout most of their contacting surfaces by their retained static charges, as shown in FIGURE 3. Furthermore, the two sheets may be joined to one another, at spaced points or throughout their contacting surfaces, by means of a suitable adhesive.

In FIGURES 5 and 6 there are illustrated several further modifications of the present invention, primed reference numerals being used to designate elements corresponding to those of the previous embodiment. Thus, there is provided a main sheet 10' having a plurality of generally columnar-shaped hollow projections 12', and a second substantially unshaped or flat sheet 16, the difference between the embodiments of these figures and the preceding embodiment being that the bleed or vent openings are provided in the sheet 16 rather than in the sheet 10 having the projections thereon, as indicated at 18. As will be appreciated, this embodiment functions in exactly the same manner as do the previously described embodiments. In FIGURE 5 the two sheets 10 and 16' are illustrated in unsealed relationship, wherein they may be loosely positioned in contact with each other, or attracted to each other by their retained static charges, depending on the type of material from which they are formed. In FIGURE 6, they are illustrated in heat sealed relationship with each other, in exactly the same manner as were sheets 14 and 16 in FIGURE 4.

In FIGURE 7 there is illustrated a high capacity cushioning material comprising two specially formed sheets 10 positioned together in a back to back relationship. The manner in which such an embodiment functions is exactly the same as above, except that a greater cushioning capacity is provided. It is not essential that the corresponding projections 12 on each of the sheets be in axial alignment with each other, as illustrated, since each projection may define an air pocket either in conjunction with a corresponding projection on the other sheet, or in conjunction with the substantially flat surface portion thereof. Furthermore, the two sheets may be either loose.y positioned with respect to each other, heat sealed or secured together in any desired manner, or maintained together by their inherent static attraction. In addition, if the two sheets are arranged in the manner illustrated in FIGURE 7, the vent or bleed holes 14 in one of the sheets may be omitted.

While all of the embodiments disclosed herein are illustrated in a substantially flat position, it should be realized that if desired they may be formed in various contours to fit specially shaped articles to be protected. In addition, the cushioning material may be formed originally in a substantially flat form so that it may be wrapped around an article to be protected when it is packaged, the latter being probably the most likely application of the invention. Furthermore, the various projections may be formed of differing heights in a given sheet and/or may be either regularly or irregularly spaced from one another, depending on the desired cushioning effect to be obtained.

Thus, there is disclosed in the above description and in the drawing, several exemplary embodiments of the present invention which fully and effectively accomplish the objects thereof. However, it will be apparent that variations in the details of construction may be indulged in without departing from the spirit of the invention as herein described, or the scope of the appended claims.

What is claimed is:

1. A cushioning material comprising a first sheet of resilient thermoplastic film material of the type characterized by its retention of a static charge, said first sheet having a plurality of generally frusto-conical hollow projections formed therein, all of said projections projecting outwardly from one side of said sheet in the same direction and including a frusto-conical side wall portion and a planar end Wall portion, means defining a flow restricting vent opening in said planar end portion of said projections, and a second sheet formed of a thermoplastic film material also having static charge retention characteristics, said second sheet being disposed in contact with the other side of said first sheet whereby a plurality of air pockets are defined between said first and second sheets by said hollow projections, said first and second sheets being attracted to each other by their retained static charges.

2. A cushioning material as claimed in claim 1, wherein said second sheet has a plurality of generally frusto-conical hollow projections formed therein, all of said lastmentioned projections projecting outwardly from one side of said second sheet in the opposite direction as said projections on said first sheet.

(References on following page) References Cited by the Examiner UNITED STATES PATENTS Horton 215-1 Smith 154-55 XR Kacer 154-55 Cole 154-55 Bowers 182-137 XR Stinchfield 96-87 Gerb 154-45 Noble 154-459 Morner 156-292 Caldwell 156-210 Richter 229-35 Chavannes 156-292 Rubissow 154-45 Chavannes 161-131 XR FOREIGN PATENTS Denmark. France. France. France.

Great Britain. Germany.

Examiners.

Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US201062 *29 Nov 18765 Mar 1878 Improvement in egg-carriers
US263531 *28 Ene 188229 Ago 1882 Carpet-lining
US355140 *24 Abr 188628 Dic 1886 Carpet-lining
US1166811 *10 Mar 19154 Ene 1916William F BowersLanding-mat.
US1627935 *1 Abr 192610 May 1927Eastman Kodak CoLaminated film which includes alpha layer of polymerized vinyl chloride
US2045384 *23 Ene 193523 Jun 1936William GerbMethod of producing insulating mats
US2391997 *26 Mar 19421 Ene 1946Lilly Florence Shirley NobleComposite slab sheet or plate
US2575764 *10 Abr 194720 Nov 1951Hans G MornerAir-filled upholstery and method of manufacture
US2633442 *8 Mar 194931 Mar 1953Albert E CaldwellMethod of making tufted material
US2679969 *12 Ene 19541 Jun 1954Transparent Package CompanyPackage construction
US2851390 *30 Jun 19559 Sep 1958Chavannes Marc AFabric and method of manufacture
US3003599 *27 Feb 195610 Oct 1961Ind Dev CoConstruction elements
US3142599 *27 Nov 195928 Jul 1964Sealed Air CorpMethod for making laminated cushioning material
USRE24062 *19 Ago 195420 Sep 1955 Coated product
DE829945C *28 Dic 195031 Ene 1952Heinz Hoening Dipl VolkswWaermedaemmende Isolierplatte
DK70088A * Título no disponible
FR1175906A * Título no disponible
FR1245009A * Título no disponible
FR1245096A * Título no disponible
GB551733A * Título no disponible
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US3362062 *7 Mar 19669 Ene 1968Acf Ind IncMethod of forming a permeable structure for aerating bulk materials
US3391413 *4 Mar 19659 Jul 1968Samuel P. CraneSpacer sheet and cushion
US3419457 *6 Ago 196531 Dic 1968Harold Bleasdale DesmondLaminated structure with former element
US3523860 *4 Abr 196611 Ago 1970Ludlow CorpSponge rubber padding
US3530032 *29 Jul 196622 Sep 1970Selfix IncVinyl peg board laminates bonded by amine curing epoxy adhesives in a binary solvent
US3597891 *2 Oct 196910 Ago 1971Mc Donnell Douglas CorpInterior absorptive panel
US3722955 *28 Abr 197027 Mar 1973Comfort Conditioning IncUnderbody ventilating structure
US3769145 *3 May 197130 Oct 1973Kimberly Clark CoReinforced plastic cushioning material
US3819007 *27 Abr 197325 Jun 1974Lockheed Aircraft CorpControllable laminar sound absorptive structure
US3851724 *25 Feb 19743 Dic 1974BomcoAcoustic damping structures
US3892902 *4 Dic 19721 Jul 1975Preco Ind LtdPlastic panel pad construction for spacing concrete panels
US3921232 *20 Feb 197525 Nov 1975Procter & GambleSelf-inflating structure
US3922409 *21 Ene 197425 Nov 1975Stark ErwinFootmat
US3938963 *1 Oct 197317 Feb 1976Hale Jesse RSandwich core panel having cured face sheets and a core formed with projecting modes
US3989867 *16 Feb 19732 Nov 1976The Procter & Gamble CompanyDisposable products
US4035536 *3 Mar 197512 Jul 1977Mcdonnell Douglas CorporationSandwich panel core
US4054291 *8 Abr 197518 Oct 1977Sony CorporationTurntable assembly for phonograph records
US4076872 *16 Mar 197728 Feb 1978Stephen LewickiInflatable cellular assemblies of plastic material
US4096965 *17 Sep 197627 Jun 1978Bayer AktiengesellschaftStorage device for sample containers
US4135020 *31 Mar 197716 Ene 1979Elevations/Design, Inc.Process for producing art works and resulting product
US4262433 *8 Ago 197821 Abr 1981Hagg Vernon ASole body for footwear
US4274211 *28 Mar 197923 Jun 1981Herbert FunckShoe soles with non-slip profile
US4285432 *7 Dic 197825 Ago 1981Gestion Paul De Villers, Inc.Package arrangement for fragile articles
US4291083 *10 Dic 197922 Sep 1981Bayer AktiengesellschaftSliding barrier for furniture devices and openings in buildings
US4314865 *14 Sep 19799 Feb 1982Ranpak Corp.Method of making cushioning dunnage
US4344536 *15 May 198017 Ago 1982Dieter OberhuberAir cushion foil for packaging purposes
US4412879 *2 Nov 19811 Nov 1983Ranpak Corp.Cushioning dunnage apparatus and method
US4415398 *30 Sep 198115 Nov 1983Ranpak Corp.Cushioning dunnage apparatus
US4482054 *22 Abr 198213 Nov 1984Clevepost, Inc.Support and cushioning tube
US4518643 *25 Jul 198321 May 1985Ethyl CorporationPlastic film
US4533583 *19 Mar 19846 Ago 1985May Michael GSealed chambers in plastic film filled with carbon dioxide
US4605582 *23 May 198512 Ago 1986American Hospital Supply CorporationBody support pad
US4673605 *25 Jul 198616 Jun 1987Baxter Travenol Laboratories, Inc.Body support pad
US4755416 *13 May 19875 Jul 1988Matec Holding AgProcess for constructing a structural element that absorbs airborne sound
US4890877 *12 Jul 19882 Ene 1990General Motors CorporationEnergy absorption system for vehicle door and method of making
US4921746 *20 Abr 19881 May 1990Patriksson Inventing AbCellular, multi-layer material for forming a heat-insulating bag
US5143775 *22 May 19891 Sep 1992Ab Akerlund & RausingShock-absorbing wrapping and a method for manufacturing such wrapping
US5152023 *13 Nov 19906 Oct 1992Graebe Robert WCellular cushion having sealed cells
US5226372 *10 Abr 199013 Jul 1993Coors Brewing CompanySlip pallet with a cushioning effect
US5233767 *27 Sep 199110 Ago 1993Hy KramerArticle of footwear having improved midsole
US5444959 *4 Feb 199429 Ago 1995Tesch; GunterThree-dimensional structural component
US5451325 *13 Jul 199419 Sep 1995Herkenberg; WolfMultilayer polyethylene film with pockets for covering water and shoreline, wound on roll for compact storage
US5493791 *10 May 199327 Feb 1996Hy KramerArticle of footwear having improved midsole
US5635275 *5 Ago 19943 Jun 1997Tredegar Industries, Inc.Lamination of non-apertured three-dimensional films to apertured three-dimensional films and articles produced therefrom
US5635276 *6 Jun 19953 Jun 1997Tredegar Industries, Inc.Lamination of non-apertured three-dimensional films to apertured three-dimensional films and articles produced therefrom
US5640728 *20 Nov 199524 Jun 1997Graebe; Robert H.For supporting a patient
US5690232 *3 Ene 199725 Nov 1997Emery; Roy WilliamResilient wraparound cushion packing
US5698054 *6 Jun 199516 Dic 1997Tredegar Industries, Inc.Method and apparatus for the lamination of apertured or non-apertured three-dimensional films to apertured or non-apertured three-dimensional and/or flat films
US5783014 *3 Sep 199621 Jul 1998Tredegar Industries, Inc.Lamination of apertured or non-apertured three-dimensional films to apertured or non-apertured three-dimensional and/or flat films
US5826726 *2 Jul 199627 Oct 1998Yang; Chun-TsePulp mold and molding means for manufacturing the same
US6004652 *13 Sep 199621 Dic 1999Clark; Brian HallStructural dimple panel
US6022608 *22 Abr 19978 Feb 2000Plantex S.P.A.Non-slip fabric with three layers and concave cups
US631533915 Abr 199913 Nov 2001Compagnie Plastic OmniumVehicular shock absorber
US636165927 Oct 199826 Mar 2002Chun-Tse YangPulp mold and molding means for manufacturing the same
US6443513 *18 May 19993 Sep 2002Concept Analysis CorporationCup bumper absorber
US6550850 *9 Oct 200122 Abr 2003Sai Automotive Allibert IndustrieDevice for absorbing energy during impact, and motor vehicle door comprising such a device
US661741517 Jun 20029 Sep 2003Cortec CorporationBiodegradable corrosion inhibitor packages
US667996717 Jul 200020 Ene 2004Oakwood Energy Management, Inc.Method for making a modular energy-absorbing assembly
US668212819 Jun 200127 Ene 2004Oakwood Energy Management, Inc.Composite energy absorber
US67524504 Dic 200122 Jun 2004Oakwood Energy Management, Inc.Formed energy absorber
US675498230 Nov 200129 Jun 2004Wolverine World Wide, Inc.Shoe cushioning system and related method of manufacture
US69073912 Mar 200114 Jun 2005Johnson Controls Technology CompanyMethod for improving the energy absorbing characteristics of automobile components
US692694729 Jun 20009 Ago 2005Peter H. SeckelDomed packing material
US69395998 Nov 20016 Sep 2005Brian H. ClarkStructural dimple panel
US707383123 Jun 200411 Jul 2006Netshape International LlcBumper with crush cones and energy absorber
US7089690 *29 May 200215 Ago 2006Nike, Inc.Material having compressible projections and footwear incorporating the material
US711861512 Sep 200310 Oct 2006Cortec CorporationBiodegradable corrosion inhibitor composition
US713167428 Oct 20047 Nov 2006Netshape International, LlcBumper system incorporating thermoformed energy absorber
US716324312 Dic 200516 Ene 2007Netshape International, LlcBumper for pedestrian impact having thermoformed energy absorber
US722289729 Ago 200629 May 2007Netshape Energy Management LlcMethod of constructing bumper incorporating thermoformed energy absorber
US722549118 May 20045 Jun 2007Wolverine World Wide, Inc.Shoe cushioning system and related method of manufacture
US72287234 Feb 200512 Jun 2007Netshape Energy Management LlcBumper impact-testing device
US724139112 May 200410 Jul 2007Cortec Corporationpackaging said biodegradable scale and corrosion inhibitor composition in a container fabricated from a water-soluble film; consisting of soy polymers, casein polymers and alginic acid, and alkali salts of gluconic acid; depositing said container into said water-based system
US72971916 Oct 200620 Nov 2007Cortec CorporationBiodegradable corrosion inhibitor composition
US736082220 Ene 200422 Abr 2008Oakwood Energy Management, Inc.Modular energy absorber and method for configuring same
US749416515 Dic 200324 Feb 2009Netshape Energy Management LlcMethod of making bumper system using thermoformed component
US7513566 *9 Nov 20067 Abr 2009Toyota Motor Engineering & Manufacturing North America, Inc.Headliner stiffener with energy absorbing mechanism
US769506918 Jul 200713 Abr 2010Prust Peter CSeat cushion
US7865969 *3 Feb 200511 Ene 2011Impacto Protective Products Inc.Vibration damping device for glove
US8112907 *3 Ene 200914 Feb 2012Eric Byeung KimDisposable cushion shoe insert
US812326318 Dic 200628 Feb 2012Shape Corp.Energy management beam
US8367184 *27 Abr 20075 Feb 20133M Innovative Properties CompanyStructured films having acoustical absorbance properties
US8381872 *5 May 200926 Feb 20133M Innovative Properties CompanyAcoustic composite
US87264243 Jun 201020 May 2014Intellectual Property Holdings, LlcEnergy management structure
US881415014 Dic 201126 Ago 2014Xenith, LlcShock absorbers for protective body gear
US8827371 *17 Nov 20109 Sep 2014Faurecia Automotive Seating, LlcVehicle seat cushion with inflatable support
US20100207443 *19 Feb 200919 Ago 2010Faurecia Automotive Seating, Inc.Vehicle seat cushion with inflatable air bladder
US20110048850 *5 May 20093 Mar 2011Alexander Jonathan HAcoustic composite
US20110171420 *7 Feb 201014 Jul 2011Shih-Sheng YangAir cushion pad
US20120021167 *29 Dic 200926 Ene 2012Daniel James PlantEnergy absorbing system
US20120280554 *17 Nov 20108 Nov 2012Faurecia Automotive Seating, Inc.Vehicle seat cushion with inflatable support
US20130082018 *7 Abr 20114 Abr 2013Tegometall International AgSupport frame for racks
US20130086733 *10 Oct 201211 Abr 2013Intellectual Property Holdings, LlcHelmet impact liner system
CN101627222B1 Oct 200713 Jun 2012森尼思有限责任公司Impact energy management method and system
DE3640543A1 *27 Nov 198613 Ago 1987Katsumi NiwaShock-absorbing packaging material
WO1990009325A1 *30 Ene 199023 Ago 1990Coors Co AdolphSlip pallet with a cushioning effect
WO1996004131A1 *3 Ago 199515 Feb 1996Tredegar Ind IncLamination of apertured or non-apertured three-dimensional films to apertured or non-apertured three-dimensional and/or flat films
WO2000001525A1 *30 Jun 199913 Ene 2000Concept Analysis CorpCup bumper absorber
WO2000049903A1 *25 Feb 200031 Ago 2000Rugged Footwear CompanyFootwear cushioning insert
WO2002068233A1 *14 Feb 20026 Sep 2002Huntsman CorpImproved automotive head-impact protection
WO2002102460A2 *19 Jun 200227 Dic 2002Oakwood Energy Man IncComposite energy absorber
WO2007135372A1 *15 May 200729 Nov 2007Carl John ParkerCushioning device
WO2011103287A1 *17 Feb 201125 Ago 2011Reflex Packaging, Inc.Environmentally friendly cushioning structure
Clasificaciones
Clasificación de EE.UU.428/132, 229/87.2, 428/178, 206/521, 297/DIG.800, 36/3.00R, 217/52, 428/137, 206/594, 297/DIG.200, 428/174, 297/1, 428/134, 297/DIG.300, 428/166
Clasificación internacionalB65D81/03, F16F9/04
Clasificación cooperativaB65D81/03, F16F9/0481, Y10S297/03, Y10S297/08, Y10S297/02
Clasificación europeaF16F9/04G1, B65D81/03