GB2412365A

GB2412365A - Multipupose lid

Info

Publication number: GB2412365A
Application number: GB0406413A
Authority: GB
Inventors: Tony Goozee; Paul Clarke
Original assignee: INNOVATION LOFT Ltd
Current assignee: INNOVATION LOFT Ltd
Priority date: 2004-03-22
Filing date: 2004-03-22
Publication date: 2005-09-28
Also published as: GB0406413D0

Abstract

Disclosed is a multipurpose lid or disc 10 whose upper surface includes a visual image 11. The disc cross-section shape has a substantially convex upper surface and substantially concave lower surface 13. Arising from specific profile attributes, the disc has a number of applications including a reuseable beverage can 19 cap or cover, and aerodynamic flying disc. The disc improves public health and safety, reduces waste. The disc may be assembled onto spinning 32 and sliding 34 devices; or additionally attached to hats 45, clothing 47, rucksacks 44, bicycles as a visibility safety enhancement or display; display board 48 or torch lens. The lid or disc 10 comprises a substantially circular peripheral surface including a groove 25 for engaging with a rim of a receptacle (fig 12), an inwardly directed deformable rib 30, and a lip to facilitate manual detachment. A groove 26 may also be provided on the upper surface, with a corresponding ridge extrusion 27 to facilitate vertical stacking.

Description

24 1 2365 1L01 1 Multipurpose Disc

BACKGROUND OF THE INVENTION

Field of the Invention

The present invention relates to a multipurpose disc. The multipurpose disc may be used and applied to a variety of functional and entertainment purposes, including improving public health, safety and environmental awareness. More particularly it relates to a multipurpose disc configured for engaging with the upper surface of a receptacle, where a receptacle may, for example, be the upper surface rim of a beverage can. The multipurpose disc may include visual images on the upper surface. The invention relates to a particular disc configuration which enables multiple use, such as it; as a beverage cap; attached onto spinning and sliding substrates; stacked in groups for games; attached to hats, clothing, rucksacks, bicycles as a visibility safety enhancement or display; attached to a display board; attached to a torch; can be used to fly when thrown by virtue of aerodynamic characteristics; or used as a collectable or novelty item.

Background

As is well-known, beverages such as beer, soda, iced teas, juices, soft drinks and the like are commonly dispensed in cylindrical containers made from aluminium or similar thin metallic materials, commonly referred to as beverage cans. Access to the contents of these containers is achieved by activating a single-use device integral to the top surface causing a puncture in the top surface. Such tabs, pull rings or tongues may stay attached to the top surface both before or after use or be detached, however in any case they are single use devices such that once the container is opened by the user it cannot be closed again using the same mechanism. Sometimes only part of the contents is served at one time and it is desirable to protect the remaining contents.

Such cans are prone to a variety of problems including loss of carbonation, spillage and access by insects, debris or other unhygienic material. When cans with partial contents are left unattended out-ofdoors, dangerous insects such as wasps are attracted to the contents increasing the risk to the drinker of discomfort or injury. Such cans also IL01 2 provide no integral mechanism to inhibit dirt or dust from collecting during storage at the area where the user will place their mouth.

A number of reusable beverage can caps have been described to address some of these issues. In US6659833 a beverage can cap is described. However, this device is designed to fit inside the rim of the upper surface of the beverage can, with a complex geometric arrangement to integrate with the beverage can opening tab pull mechanism.

Due to the beverage can cap having secondary use as a novelty item, through modification by means of knock-out areas or pealing protective covering from adhesive areas, means that it can no longer be functional as a can cap. As further background, US5996832 describes a beverage can cover to protect the can during transport and storage in unhygienic conditions. The beverage can cover also allows a secondary purpose to enclose an additional item, such as a condom for use in an AIDS prevention campaign. However, this cover is designed to be attached to the can during manufacture rather than by the user and is not specifically designed for re-use after opening, as the cover may be destroyed during opening, introducing increased waste material into the environment. Other caps include tongues or tabs specifically designed to allow cap removal, rendering the design unsymmetrical with an unbalanced mass distribution.

Cylindrical spinning devices attached and controlled by means of a string for use as a toy are commonly known as Yo-Yo's. Many variations and improvements have been made in spinning device designs, however most spinning devices are integral units and where decorative images are placed on the outside spinning disc surfaces, these are generally the same design for a product series permanently attached to the spinning device assembly during manufacture. These devices do not allow for users to swap visual images from a variety of collectable visual images, where the attachable and detachable disc has secondary purpose. Existing spinning devices allow very limited end user customization. Where such customization is enabled, it generally requires that the spinning device be disassembled into component parts; images changed, and then reassembled using a multi-step procedure. A further health and ILe1 3 safety risk is introduced to small children during disassembly due to the presence small component objects.

SUMMARY OF THE INVENTION

It is an objective of the invention to address one or more of the limitations associated with existing beverage can caps, sliding and spinning devices and material recycling activity.

The present invention relates to a substantially circular disc shaped with a profile combining aspects that allow the disc to be used in a number of diverse toy, game and functional utility applications. The disc provides for improved public health and safety. Many people are injured each year as the result of wasp stings associated with open beverage cans. The present invention seeks to reduce such injuries by protecting the content of opened beverage cans. Further, the safety risks of small parts when a child disassembles a spinning device or toy is minimised by assembly of discs with a spinning device. Additionally, the disc reduces waste material introduced into the environment by being reused singly or in groups according to the application. The disc shape has several important and unique characteristics, which enable its use in a plurality of applications, which are explained in greater detail in other sections of the

specification and embodiment.

According to the first aspect of the present invention there is provided a disc configured to allow use in a plurality of recreational and utility applications. The disc is composed of a material where the primary ingredient is a resilient material, such for example but not limited to polymeric/elastomeric or other injection moulded plastic material. The material provides for efficient and economic manufacture. The disc is substantially circular, with a substantially flat disc inner portion of upper surface area and a circumferential edge area. The material, although substantially of a resilient material, may include other materials such as for example particulate matter adding visual texture, metallic sputter coating, felt or rubberised surface coatings. The substantially resilient material may be of varying opaque colours or translucent, lt01 4 iridescent, holographic, reflective, luminescent, or temperature dependent colour allowing a wide variety of visual effects.

Furthermore, this aspect provides a disc whereby the gross shape is substantially convex on the upper surface and substantially concave on the lower surface, which smaller detailed shape variations that may not be described as completely convex or concave. The disc substantially circular periphery lower surface profile includes a substantially circular groove suitable for engaging with substantially circular rim of a receptacle. The disc may thus be used to engage with, or clip-on to, or connect to, or attach to a suitable receptacle.

The disc circumferential edge area profile has an area where the material thickness is thinner than most of the other disc sections to allow increased flexibility, including a hinge-like effect when used to attach to a substrate. The thinnest material region is inside the radius of the substantially circular groove and outside the radius of the substantially flat inner area. Said circumferential edge area upper surface has a smooth curvature profile without sharp angular discontinuities suitable for increasing aerodynamic stability and the reduction of air-flow turbulence when in stable flight.

The mechanical stability of attachment is further improved by optional addition of an inwardly directed rib on the inside surface of the disc. Said rib engages with the outer surface of the receptacle rim, having the affect of increased friction, resisting horizontal and vertical movement when engaged. The inwardly directed rib is deformable to allow the disc to be engaged with the receptacle, providing the functional aspect of opposing removal.

The mechanical stability of attachment is further improved by optional addition of a small substantially circular ridge on the lower surface of the disc. Said ridge has a radius inside the radius of the substantially circular groove and outside the radius of the substantially flat inner area. Said ridge is positioned suitable for engaging on the inside cylindrical surface of a receptacle rim, having an affect of increased friction, resisting horizontal movement.

1L01 5 Said circumferential edge area upper surface includes a small indented groove configured such that a small ridge on the lower surface engages with a like disc, allowing stacked discs to fit or key onto one another. Such keying allows discs to rotate with respect to one another but reduces or inhibits horizontal motion for example sliding off motion. Such keying improves efficiency of packing, transporting discs in groups, and further encourages additional disc use with subsequent reduction of waste material entering the environment.

Furthermore, this aspect provides a disc whereby a rim margin of circumferential edge area is available for labelling, decoration, advertisement, branding, text, or images through embossing, printing or other means. Thus image, graphic or patterns may be applied in an additional surface area.

Said circumferential edge area has a profile which is thicker than the interior of the disc, which serves the multiple purposes of making the weight distribution heavier at the outer rim to increase gyroscopic inertia in stable flight and to give the user increased surface area for manual removal of the disc from any of a number of receptacles. The disc includes a lib which may project beyond the extent of the receptacle which allows for manual removal. The disc upper and lower surface cross- section shapes provide for aerodynamic lift in stable flight. The inside lower area of said lip has several profile features including a groove and adjacent rim for the purpose of "clip-on" attachment onto any number of a variety of receptacles, including a beverage can.

Furthermore, this aspect provides a disc whereby the inner portion of the upper surface is substantially flat to accommodate visual images. It will be understood that such images are optional, and that the disc may be used in some applications without visual images. When present, said image, graphic or pattern may provide display of decorative or informational material. Said image may be, for example, embossed directly into a substantially plastic or other resilient material substrate; offset, screen, tempo, foil, pad and/or inkjet printed directly onto the substrate or included by means 1L01 6 of the application of a pre-printed sticker attached to the upper surface by means of an adhesive. A further optional variation in the upper surface inner area provides a flat substantially circular recessed profile. Said recessed profile provides for an inlaid image component such as a lenticular, holographic, translucent or prismatic image display component. Said inlaid image carrying substrate may be configured to include stickers, scratch and sniff stickers, laminated scratch resistant stickers, stickers that change colour with regards to heat. The said graphic images may provide content for a variety of functional and recreational purposes, including but not limited to advertising, brand identification, game figure, game score value, product or safety information, game rules, or abstract graphical patterns.

According to the second aspect of the invention there are provided further applications and uses of the disc as an assembly when combined with a disc receptacle without restricting its use in other applications set out in this specification. An additional device referred to as a receptacle is described here to enable further inventive aspects of the multipurpose disc in an assembly. A receptacle device is substantially circular with a top surface profile, and the peripheral circumferential edge profile designed suitably to provide an attachment mechanism for the previously described disc. The receptacle upper surface includes a protruding cylindrical ring with dimensions and angle to form a rim surface suitably configured to engage with a disc lower surface profile substantially circular groove. The receptacle may be formed from a variety of materials ranging from flexible rubberised materials to rigid or resilient materials dependent on the application. The lower surface of the receptacle varies in shape, thickness and attachment mechanism according to application. Said receptacles may be attached to other objects by an adhesive backing, Velcro(TM), screws, clips, snaps, pins, stitching, nails, or magnet, for example.

Furthermore, such disc receptacle may be configured in arrays and mounted on a flat surface, for instance as a display board for a disc collection. Single or a plurality of receptacles may be sewn onto clothing, hats, rucksack, etc. for display of discs.

Discs with highly reflective or luminescent qualities may be attached to the receptacles as visibility safety devices. Discs with highly reflective or luminescent qualities may IW1 7 be attached to the receptacles suitably configured for mounting on bicycle wheel spokes or frames for improved bicycle road safety. An individual disc may be attached to a receptacle suitably configured for wearing as a badge, brooch, or other item of decorative attire. Other types of receptacle may include a magnet for display of collectable discs on a refrigerator door or other metallic surface. A battery-powered torch may be customised where the front surface of a torch is configured as a disc receptacle, and combined with discs with translucent optical properties.

According to a third aspect of the invention there is provided a further application and use of the disc as a beverage cap without restricting its use in other applications set out in this specification. The dimensions of the disc are established such as to correspond to the dimensions of a beverage top surface profile, whereby the disc may be "clipped on" or attached to the beverage can upper surface. When attached the disc performs the function of a temporary cap, shielding the opening area of the beverage can from dirt, dust, insects or unhygienic material, or from beverage content spillage. This has significant benefit when said beverage can is in an outdoors environment with partially consumed content remaining inside the can. The disc material thus forms a partial gaseous seal, is semi-impervious to dust or water ingress when attached to the beverage can, may have similar characteristics to IP.55 (International Protection Rating 55, protection against ingress of foreign objects including dust, and shielded against jets of water with harmful effects).

Furthermore, this aspect provides a disc whereby the shape profile has a substantially concave lower surface, such that when attached to a beverage can a void area is formed between the top surface of the can and the lower surface of the disc.

Said void area is sufficient to accommodate a beverage can opening device both before and after opening operations. Further, said void area may be used for the storage of one or more secondary objects such as for example instructions, informational material, prizes, or toys.

Furthermore, this aspect provides a disc whereby the shape profile provides a 360 circular groove suitable for alignment and attachment onto the topmost rim of a ILol 8 beverage can. The attachment is further enhanced by a mechanism intrinsic to the disc design whereby a small angle hinge is formed by virtue of the substrate material comprised substantially of resilient material with some residual flexibility and a thinned area of disc profile. By the combination of the hinge and groove attributes a persistent attachment of the disc to the top surface of the beverage can is achieved.

Furthermore, this aspect provides a disc whereby the shape profile provides a 360 substantially circular groove suitable for alignment and attachment onto the topmost rim of a beverage can including an optional rubberised over-mould, where an elastomeric material is present in the central profile of the said groove to provide a functional effect of a partial gaseous seal against the beverage can rim.

A further related use of the disc as a re-usable beverage cap is as part of a campaign combining the collectable aspects of the disc with a beverage can recycling scheme. In this way the public may be encouraged to recycle valuable natural resources such as aluminium through linking to a collectable object or game, reducing waste material introduced into the environment.

The disc profile provides an area on the circumferential edge for detachment of the disc from the receptacle by finger pressure, avoiding the need for any special removal mechanism such as a tongue, tab or handle.

A further aspect of the disc as a re-usable beverage cap provides that the disc may be applied to the beverage can either by the manufacturer or independently by a consumer or user. As the disc may be available to consumers as an independently promoted or distributed item, a consumer may use the disc as a cap at point of use of the beverage, and indeed re- use it as a cap on further beverages. However, it may also be pre- packaged with the beverage by the manufacturer. The beverage may be supplied to the consumer with the disc already in place. The manufacturer may find advantage in this by using the disc for advertising or brand promotion, public safety campaigns, or other added value schemes. Further, the disc may assist with the IL01 9 protection of the unopened beverage can from dirt, dust, insects or other unhygienic material during storage or shipping.

Furthermore, this aspect of the present invention provides a disc used as a beverage can cap whereby the beverage, once opened, is protected from ingress by wasps or other dangerous insects. This aspect provides a public health service, which may help to reduce the number of wasp stings or related injuries associated with open beverage cans.

An additional attribute of this aspect of the present invention allows the disc to be used as a beverage can stacking inter-connect, improving storage, shipment or display. The rim margin of the disc upper surface area includes an inflection point in the slope of the upper surface profile. Said inflection point is suitably positioned such that the bottom surface of a beverage can may rest in a stable upright position when placed on top of said disc. Primarily intended for recreational activity, a stack of beverage cans separated by one or more discs may be constructed by placing the bottom of one can on top of a disc which in turn is "clipped on" to the top surface or rim of another beverage can. Such recreational application may also involve one or more beverage cans and a plurality of stacked discs. The creation of said stacked beverage cans and/or discs may be for simple stacking games, in the same way as children stack wooden blocks, or in combination with other games such as the throwing and dislodging game described earlier. By way of example, said stack may comprise, in ascending order, a first can, then three discs, then a further two cans, followed by two more discs. In such stacking configurations it should be clear that any combination of cans and discs may be combined in any order.

According to a fourth aspect of the invention there is provided a disc combined with a disc receptacle configured as a sliding device without restricting its use in other applications set out in this specification. An additional device referred to as a "slider" device is formed by the assembly of one disc and one receptacle with specific attributes in the mechanism and structure of the receptacle. A slider device may be formed by a receptacle unit constructed from two different or identical substantially IL01 circular substantially rigid or resilient parts with cut-out and circular socket areas that when aligned in an opposite configuration allows a mated join. When the two parts are permanently connected they hold captive a number of stainless steel or ceramic spherical objects (also known as ball bearings). Cut-outs are provided in the receptacle to allow detachment from a disc by means of the user's finger, while the spherical objects are able to make contact with an external surface to allow a rolling or sliding motion. In such a configuration the disc upper surface remains visible, engaged with and partially hiding the slider receptacle and rolling mechanism from view. Such a slider may be rolled along wide range of surfaces including flooring and short carpet.

The bearings provide a significant proportion of the slider weight, lowering the centre of gravity and providing stability during sliding operation. Sliders may be used as a toy or in the context of a game. Users are able to reconfigure sliders at will from a set of collectable discs. A plurality of sliders may be used in a game similar to "boules", where players attempt to slide their piece nearest to a point, as may be marked on a game mat, or nearest to other sliders.

The multipurpose disc cross-section profile and other characteristics allow it to be used in the context of a modified spinning device or Yo-Yo design. Here the traditional well-known Yo-Yo concept has two specially adapted receptacle profiles on the two outer surfaces such that a disc may be attached to each side, completing the spinning device. The spinning device user may remove and re-attach discs at will to change the visual image presented on the outer surfaces of the spinning device. By use of the external receptacle profile, the disassembly and reassembly of the spinning device is avoided, thereby minimising health and safety risks to small children where disassembly would generally introduce small loose objects. When in the attached state a void is formed between the lower surface of each disc and the spinning device receptacle area. Such a void may optionally be used as a storage compartment for one or more secondary objects, such as for example instructions, informational material, prizes or toys.

Further, the spinning device may be employed for the purpose of a "slammer" in the FOGS style game, whereby the spinning device extension action is directed 1L01 toward a stack of discs with the purpose of dislodging individual discs as part of a game activity.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings where like numerals refer to like parts and in which: Figure 1 shows a schematic representation of the overall external geometric shape of a single disc as seen from the front at an oblique angle; Figure 2 shows a schematic representation of the overall external geometric shape of a single disc as seen from the lower side at an oblique angle; Figure 3 shows a schematic representation of a plan view of a single disc; Figure 4 shows a schematic representation of an edge view elevation of a single disc; Figure 5 shows a schematic representation of single disc cross-section elevation where the section corresponds to the section line A-A in Figure 3, where the visual image is mounted on the disc involving a circular image substrate; Figure 6 shows a schematic representation of a single disc cross-section elevation where the section corresponds to the section line A-A in Figure 3, where the visual image is integral to the disc top surface; Figure 7 shows a schematic representation of four discs in cross- section elevation where four discs are in a vertical stack configuration; ILol 12 Figure 8 shows a schematic representation of a detail region in Figure 7, showing the cross-section elevation of two stacked discs; Figure 9 shows a schematic representation of a beverage can and a disc prior to being attached to the can as seen from an oblique angle; Figure 10 shows a schematic representation of a beverage can and a disc prior to being attached to the can including secondary items between the disc and can as seen from an oblique angle; Figure 11 shows a schematic representation of a beverage can and a disc attached to the top of the can as seen from an oblique angle; Figure 12 shows a schematic representation of a beverage can and a disc attached to the can as seen in cross-section elevation view; Figure 13 shows a schematic representation of a detail area from Figure 12, where the attachment area of the disc and beverage can is shown in cross-section elevation view; Figure 14 shows a schematic representation of two beverage cans stacked vertically with a disc attached to the lower beverage can and the second beverage can stacked on the disc, as seen from an oblique angle; Figure 15 shows a schematic representation of two beverage cans stacked vertically with a disc attached to the lower beverage can and the second beverage can stacked on the disc, shown in cross-section elevation view; Figure 16 shows a schematic representation of a detail area from Figure 15, where the attachment area of the disc and two beverage cans is shown in cross-section elevation view; ILO1 13 Figure 17 shows a schematic representation of a spinning device and two discs, where one disc is attached to the lower side of the spinning device and the other disc is shown aligned above the spinning device, not attached, where the attached items are seen from an oblique angle; s Figure 18 shows a schematic representation of a spinning device and two discs, where both discs are attached to opposite sides of the spinning device, where the attached items are seen from an oblique angle; Figure 19 shows a schematic representation of a spinning device and two discs, where both discs are attached to opposite sides of the spinning device, where the top surface of the attached items are seen in plan view; Figure 20 shows a schematic representation of a spinning device and two discs, where both discs are attached to opposite sides of the spinning device, where the attached items are seen in cross-section elevation, where the cross-section is taken through section B-B of Figure 19; Figure 21 shows a schematic representation of a slider device, the top part, bottom part and three spheres are shown in relation to each other prior to assembly, seen from an oblique angle; Figure 22 shows a schematic representation of a slider device and one disc, where the disc is shown aligned above the slider device, not attached, seen from an oblique angle; Figure 23 shows a schematic representation of an assembled slider device and disc, showing the plan view of the lower side, exposing the three spheres; Figure 24 shows a schematic representation of an assembled slider device and disc, showing the elevation view, illustrating the partially exposed spheres and the outer surface of the disc; clot 14 Figure 25 shows a schematic representation of an assembled slider device and disc, showing an elevation cross-section view through the section D-D of Figure 23; Figure 26 shows a schematic representation of an assembled slider device and disc, showing an elevation cross-section view through the section C-C of Figure 23; Figure 27 shows a schematic representation of a detail area from Figure 26, with an assembled slider device and disc, showing an elevation cross-section view through the section C-C of Figure 23, highlighting the attachment area; Figure 28 shows a schematic representation of a person throwing one disc in the direction of a stack of discs where some discs in the stack are dislodged; Figure 29 shows a schematic representation of a person placing a disc onto the top surface of a beverage can after said can has been opened, also showing an insect nearby; Figure 30 shows a schematic representation of a person placing a disc onto a receptacle, with receptacles, some with discs attached, shownon clothing, cap, rucksack and display panel; Figure 31 shows a schematic representation of a person directing a spinning device with attached discs toward a vertical stack of discs, where some discs are dislodged from the stack; and Figure 32 shows a schematic representation of a person directing a slider device toward a group of other slider devices on a playing mat. 01 16

DETAILED EMBODIMENTS

Figure 1 shows a schematic representation of the overall external geometric shape of a single disc 10 as seen from the front at an oblique angle. The gross external shape of the upper surface is shown to be substantially convex, with circular symmetry. The central inner area of the upper surface is shown to be flat with a circular circumference 11, where a visual image may be displayed. Between the flat visual image area 11 and the edge of the disc is shown a rim margin area 14 where logos or other graphic material may be placed or embossed.

Figure 2 shows a schematic representation of the overall external geometric shape of a single disc 10 as seen from the reverse side at an oblique angle. The gross external shape of the lower surface 13 is shown to be substantially concave, with circular symmetry. The central inner area of the upper surface is shown to be flat with a circular circumference 11, where a visual image may be displayed.

Figure 3 shows a schematic representation of a plan view of a single disc 10 as seen from the top. The external periphery is shown as circular, with a central inner area of the upper surface shown to be circular 11 where a visual image may be displayed.

Between the visual image area 11 and the edge of the disc is shown a rim margin area 14 where logos or other graphic material may be placed or embossed. Figure 3 additionally indicates a section line A-A referenced by further figures.

Figure 4 shows a schematic representation of an edge view elevation of a single disc 10, where the upper surface visual image area 11 is shown to be flat with the margin area 14 suitable for the placement of graphic material.

Figure 5 shows a schematic representation of single disc 10 cross-section elevation where the section corresponds to the section line A-A in Figure 3, where the visual image 11 is mounted on the disc involving a circular image substrate 12. The detailed characteristics of cross-section shape of the disc 10 are shown by reference to numbered marks. The thickest material area is shown to be at the circumferential 1L01 17 periphery area 16 giving the edge greater mass than the interior. This greater mass increases gyroscopic inertia during flight. This same area of greater mass 16 also provides additional leverage area for disconnection using manual manipulation, such as for example finger or thumb pressure. By in effect forming a lip which may extend beyond the extent of the receptacle the lip allows for manual removal.. The disc 10 edge also includes two small features, a small circular groove indentation 26 on the upper surface and a corresponding small circular ridge extrusion 27 on the lower surface, suitably aligned to allow the groove 26 on one disc 10 to engage with corresponding ridge 27 on another disc 10 to facilitate vertical stacking. The lower surface 13 of the disc edge area has a circular groove indentation 25 suitably configured to engage with a corresponding ridge on a receptacle, such as for example a receptacle embodiment as the upper rim of a beverage can 23 as shown in Figure 9, Figure 10, Figure 12, Figure 13, Figure 14, Figure 15 and Figure 16. To further facilitate attachment to a receptacle, the lower surface inner edge includes a small inwardly directed rib 30 configured to apply lateral force to the receptacle cylindrical side surface, by being deformable itself and/or by flexibility of the disc. Said rib 30 provides additional mechanical attachment stability by resisting vertical displacement by gravity or other external force, and in general opposes removal. An additional rib 29 is set inside the circular groove 25 providing further mechanical attachment stability by providing outwardly directed force to the receptacle cylindrical side surface in the opposite direction of the outer rib 30. The cross-section schematic shows the thinnest material area at a point 15 inside the radius of the attachment groove 25 and outside the radius of the central visual image area 11. The thinnest point 15 allows the material increased mechanical flexibility, such that the disc 10 may hinge at the thinnest point 15 to facilitate attachment to a receptacle. The gross shape further shows that a void area 18 is created below the disc 10 due to the substantially concave shape of the lower surface 13. Between the outer edge and the inner visual image area, the upper surface of the disc 10 has a circular area of the rim margin where the slope is constant 14. This rim margin area 14 is configured to allow logos, text or other graphical images to be placed or embossed in a circular configuration on the disc 10.

The disc 10 upper surface inner area 11 is substantially flat to accommodate visual images. The disc lower surface 13 may also optionally include visual images, 01 18 embossed or printed on the disc 10. Optionally, as shown in Figure 5, an image substrate 12 is inserted into the disc 10 to allow image material and processes from other sources or with other material characteristics to be included in the disc 10. The rim margin area upper surface includes a slight inflection point in the slope of the upper surface profile 17 positioned in such a way as to enable the disc 10 to engage with the lower profile 24 of a beverage can 19. Many of the numbered features are further illustrated in the detail cross-section of Figures 8, 13 and 16 and 27 Figure 6 shows a schematic representation of a single disc 10 cross-section elevation where the section corresponds to the section line A-A in Figure 3, including detailed profile attributes and description as above in Figure 5, where optionally the visual image is integral to the disc top surface 11, without the addition of a separate visual image substrate 12, allowing for simplification of manufacturing and reduced fabrication costs.

Figure 7 shows a schematic representation of four discs 10 in crosssection elevation where four discs are in a vertical stack configuration. The vertical stack configuration is formed whereby discs 10 are placed in vertical alignment with respect to each other. To improve mechanical stability of the stack each disc 10 edge area also includes two small features, a small circular groove indentation 26 on the upper surface and a corresponding small circular ridge extrusion 27 on the lower surface, suitably aligned to allow the groove 26 on one disc 10 to engage with corresponding ridge 27 on another disc 10. When two discs are thus engaged lateral or horizontal disc movement with respect to each other is resisted. The disc relative alignment is improved while horizontal slippage is suppressed. Two or more discs 10 may form such a stack.

Figure 8 shows a schematic representation of a further detail region in Figure 7, showing the cross-section elevation of two stacked discs 10 where respective groove 26 and ridge 27 are shown engaged. Other numbered features shown in Figure 8 are described above in the description of Figure 5. As illustration of a further optional feature, the lower surface of the circumferential edge groove 25 includes a surface 01 19 element of elastomeric rubber over-mould 28. The addition of this element improves the seal and fit onto the receptacle surface, for example the beverage can upper rim 23 as shown in Figure 9.

Figure 9 shows a schematic representation of a beverage can 19 and a disc 10 prior to being attached to the can as seen from an oblique angle. The disc 10 is positioned above the beverage can 19 upper surface 21 where it is in proximity to the beverage can 19 opening device 22 and dispensing area. More specifically the disc 10 circumferential edge is aligned near to the beverage can rim 23 for subsequent attachment. The disc 10 upper surface visual image area 11 remains exposed to view in this configuration.

Figure 10 shows a schematic representation of a beverage can 19 and a disc 10 prior to being attached to the can in a similar configuration to Figure 9, including secondary items 31 between the disc 10 and beverage can 19 as seen from an oblique angle. The alignment of the items is arranged such that the secondary objects will be contained within the void area 18 formed between the lower surface of the disc 13 and the upper surface of the beverage can 21.

Figure 11 shows a schematic representation of a beverage can 19 and a disc 10 attached to the top of the can as seen from an oblique angle. In the attached configuration shown, the disc upper surface visual image 11 area remains exposed to view, the upper surface 21 of the beverage can 19 is completely covered by the disc, and any secondary objects 31 are hidden and completely enclosed in the void area 18 formed between the lower surface of the disc 13 and upper surface of the beverage can 21. In such a configuration the secondary objects 31 may be stored, transported or otherwise associated with the assembly without loss or damage.

Figure 12 shows a schematic representation of a beverage can 19 and a disc 10 attached to the can as seen in cross-section elevation view through the central vertical axis of the beverage can 19. The disc is attached to the upper surface of the beverage can 21; independently of lower profile of the beverage can 24. As the remaining ILo1 20 numbered detail regions in Figure 12 are also common to Figure 13, they will now be described together.

Figure 13 shows a schematic representation of a detail area from Figure 12, where the attachment area of the disc 10 and beverage can 19 is shown in cross-section elevation view. The exposed upper surface of the disc visible image area 11 is shown with the optionally configured image substrate 12. The thin section point 15 is shown providing a hinge mechanism, a profile slope inflection point 17 is shown suitable for engagement of the lower surface of another beverage can 24, an edge area with constant slope 14 is available for additional text, graphics or other visual markings, a groove 26 and corresponding ridge 27 are suitably aligned to allow engagement by other like discs. The area of greatest mass 16 also represents the area of greatest material thickness. This thickness provides additional area allowing disc 10 removal from beverage can 19, such as by placing fingers under the edge of the disc. As this feature is an attribute of the general profile of the disc it avoids any need for a special- purpose device for removal such as a tab or handle. The profile of the beverage can upper surface rim 23 is shown engaged with the suitably aligned groove 25 on the lower surface of the disc edge. The movement resistant features of the outwardly directed rib 29 and inwardly directed rib 30 on both sides of the groove 25 are shown in relation to the beverage can upper surface rim 23 in the attached configuration in this figure. Further, the void area 18 formed between the disc 10 and the beverage can upper surface 21 is shown, where the void provides an amount of space suitable for accommodation of the beverage opening device 22 both before and after opening operation and secondary objects 31.

Figure 14 and Figure 15 show a schematic representation of one possible configuration of beverage cans 19 and discs 10 in a vertical stack. Here two beverage cans 19 are stacked vertically with a disc 10 attached to the lower beverage can 19 and the second beverage can 19 stacked on the disc 10. Figure 14 shows this stack as seen from an oblique angle whereas Figure 15 shows the same stack in cross-section elevation view. The disc 10 is attached to the lower beverage can upper surface 21 by engagement of the beverage can upper surface rim 23. Further, the second beverage ILol 21 can 19 is stacked vertically on top of the disc 10 where the lower surface of the beverage can 24 is engaged with the upper surface of the disc 10 at the point of the edge slope inflection point 17, providing vertical stacking stability, and resisting horizontal sliding movement. Further, the cross-section profile of Figure 15 reveals the void 18 formed between the disc 10 and lower beverage can upper surface 21, suitable for storage of secondary items.

Figure 16 shows a schematic representation of a detail area from Figure 15, where the attachment area of the disc 10 and two beverage cans 19 is shown in cross section elevation view. This detail further illustrates detail of the attachment area characteristics previously described in previous figures.

Figure 17 shows a schematic representation of a spinning device 32 and two discs 10, where one disc 10 is attached to the lower side of the spinning device 32 and the other disc 10 is shown aligned above the spinning device 32 receptacle area 34, not attached, where the assembled items are seen from an oblique angle. Both the upper and lower sections of the spinning device include recessed areas 33 suitable for finger access to facilitate removal of attached discs. Figure 18 shows the same objects now fully attached. Both Figure 17 and 18 show the orientation of the two discs on opposite surfaces of the spinning device such that the disc upper surface visible image area 11 remains exposed to view.

Figure 19 shows a schematic representation of a spinning device 32 and two discs 10, where both discs are attached to opposite sides of the spinning device, where the top surface of the attached items are seen in plan view, in particular showing the disc upper surface visible image area 11 in the centre of the figure, with a section line indicated as B-B, referenced in Figure 20.

Figure 20 shows a schematic representation of a spinning device and two discs, where both discs are attached to opposite sides of the spinning device, where the attached items are seen in cross-section elevation, where the cross-section is taken through section B-B of Figure 19. The central portion of the figure shows the internal 1L01 22 mechanism of the spinning device 32. An important aspect of the spinning device 32 is the receptacle and attachment configuration with respect to the two discs 10. The numbered details of Figure 20 are largely described in previous text. The spinning device receptacle profile 34 is shown engaged with the corresponding disc lower surface groove 25. The attachment mechanism onto the receptacle 34 has similar mechanical properties to the attachment to a beverage can upper surface rim 23 previously described.

Figure 21 shows a schematic representation of a slider device 20, the top part 50, bottom part 50 and three spheres 35 are shown in relation to each other prior to assembly, seen from an oblique angle. The slider device parts 50 are configured to be of identical shape to provide manufacturing and production efficiency. As illustrated, by means of an example, three smoothly polished spherical objects 35, made from stainless steel, ceramic, plastic or other rigid material are placed between two slider device parts 50. The two parts are shown in corresponding vertical alignment. During assembly the two parts are placed together and permanently connected by ultrasonic welding or other means of attachment. Once permanently connected the spherical objects 35 become captive in the slider device assembly 20 by the profile of the circular captive containment sockets 36.

Figure 22 shows a schematic representation of a slider device 20 comprising two slider device parts 50, three spherical objects 35 and one disc 10, where the disc is shown aligned above the slider device, not attached, seen from an oblique angle.

Both parts of the slider device 50 contain a cut-out section 38 such that the circular profile has an incomplete circumferential edge and a void region at the centre of the both parts. This cut-out section 38 has sufficient shape and clearance to allow finger access for the purpose of detaching the disc 10 from the slider device parts 34. Further, the profile of the slider parts, once connected, form a groove 37 along the outermost circumferential periphery at the point they are connected.

Figure 23 shows a schematic representation of an assembled slider device 20 and disc 10, showing the plan view of the lower side, exposing the three spheres to 1L01 23 view. The outermost circumferential periphery of Figure 23 is the disc edge 10. The spherical objects 35 are partially exposed through the circular captive sockets 36. The centre of the figure shows the slider device cut-out access area 38, exposing a direct view of the lower surface of the disc 13. The plan view of Figure 23 shows a section line with two section identifiers C-C and D-D, both of which are referenced in cross- section figures to follow.

Figure 24 shows a schematic representation of an assembled slider device 20 and disc 10, showing the elevation view, illustrating the partially exposed spherical objects 35 and the outer surface of the disc 10. The profile of the rim edge area 14 is noted where text or other graphical markings may be included.

Figure 25 and Figure 26 show a schematic representation of an assembled slider device 20 and disc 10, showing the elevation cross-section view through the section D-D and C-C respectively of Figure 23. In Figure 25 the D-D cross-section reveals the central spherical object 35, whereas the C-C cross-section of Figure 26 shows two spherical objects 35 positioned to the right and left sides. Both figures clearly show the two symmetrical slider object parts 50 connected to each other with the circular captive sockets 36 surrounding the spherical objects 35. Both figures show the disc 10 attached to the slider device 20 from the top, where the disc is attached through the disc lower surface circular groove 25 engaged with a corresponding circular ridge on the outermost periphery of the slider device 37. Further mechanical stability is provided by the disc lower surface inwardly directed rib 30 engaging with a small lateral groove in the slider device 20 at the point where the two slider device parts are connected 37. Both figures further illustrate void 18 formed between the disc lower surface 13 and the slider device 20 to allow clearance of the spherical objects 35 and provide finger access for detachment operations through the cut-out area 38.

Figure 27 shows a schematic representation of a detail area from Figure 26, with an assembled slider device 20 and disc 10, showing the elevation cross-section view through the section C-C of Figure 23, highlighting the attachment area. The ILo1 24 details of the edge attachment area are more clearly illustrated with numbered features previously described.

Figure 28 shows a schematic representation of a person 40 throwing one disc 10 in the direction of a stack of discs 41 where some discs in the stack are dislodged 42. This figure is an example of a game employing a plurality of discs 10, where it is a goal of the game to dislodge previously stacked discs.

Figure 29 shows a schematic representation of a person placing a disc 10 onto the top surface of a beverage can 19 after said can has been opened, also showing an insect 43 nearby. This figure illustrates the action of applying the disc 10 onto the beverage can 19 as a reusable lid to provide a protective cover to a partially consumed beverage, both before and after the opening device 22 is operated. Protection is provided against insects, dirt, dust or other unhygienic material.

Figure 30 shows a schematic representation of a person 40 placing a disc 10 onto a receptacle 46, with receptacles 46, some with discs 10 attached, shown on clothing 47, cap 45, rucksack 44 and display panel 48. The receptacles 46 as shown are configured to provide an attachment device suitable to attachment and detachment of discs 10, with a substrate suitable for integrating onto clothing 47, caps 45, or rucksacks 44. Further, a set of receptacles 46 are integrated onto a planar surface to form a display board 48 for a plurality of discs 10.

Figure 31 shows a schematic representation of a person 40 directing a spinning device 32 with attached discs 10 toward a vertical stack of discs 41, where some discs are dislodged from the stack 42. This figure is an example of a game employing a plurality of discs 10 and a spinning device 32, where it is a goal of the game to dislodge previously stacked discs.

Figure 32 shows a schematic representation of a person 40 directing a slider device 20 with attached disc 10 toward a group of other like slider devices 20 on a playing mat. This figure is an example of a game employing a plurality of sliding 01 25 devices 20 and discs 10, where it is a goal of the game to position the slider device 20 in relation to markings on the mat 49 or in relation to other slider devices 20.

The multipurpose disc embodiment spans a number of applications normally associated with a single device designed specifically for each application. By crossing multiple applications the disc is a very flexible and adaptable framework for marketing, toys, games, packaging and display.

In the described embodiment the disc shape is substantially circular; having an outer diameter approximately 60mm, with a substantially convex upper surface and substantially concave lower surface, the inner portion of the disc is substantially flat with constant thickness, while the outer portion has a non-uniform thickness profile.

The upper surface inner flat area, having a diameter approximately 40mm, is configured for visual images. The outer area lower surface is configured to allow attachment to other substrates, most notably a beverage can or a range of special purpose configured disc receptacles. Such receptacles are configured to complete an assembly forming a slider toy, a special Yo-Yo variation, clothing badge, rucksack ornament, cap ornament, bicycle reflector, torch accessory and collection display

board, for example.

The disc in the described embodiment has overall shape, weight distribution and surface curvature details configured to allow stable flight similar to the well- known FRISBEE(TM). The multipurpose disc is an improved variation on the FRISBEE as an aerodynamic throwing disc, in that it is a miniature size version, able to be thrown and caught with one hand or a specially designed catching/launching device. The disc gross profile, which includes a substantially convex upper surface and substantially concave lower surface, provides an element of aerodynamic lift due to Bernoulli's Principle. Further, the upper surface curvature profile is designed with smoothed transitions between each area of angular slope as to minimise flow separation from the boundary layer, thereby minimising aerodynamic turbulence in flight. The area of maximum material thickness is at the outermost circumferential edge, thereby creating a differential mass distribution between the edge and centre 01 26 portion of the disc. Said mass distribution improves gyroscopic inertia when spinning during flight. The combination of the above features of the disc improves its aerodynamic stability in flight. The disc flying attributes may be combined with game activity, for example throwing one disc into a stack of discs. s

As previously noted, discs include a substantially circular groove and ridge which provides for stability when a group of discs are stacked. As a result, it is further possible to throw such a group of stacked discs such that the group operates as a composite aerodynamic flying object.

As a further embodiment illustrating use of the invention there is provided an additional application of the disc as a game piece without restricting its use in other applications set out in this specification. A series of discs may form a group, where each member of the group has a related but distinct visual image. The disc provides a collectable item, suitably as a child's collectable object. Collections of said objects may be used as game pieces where a goal of the game is to further develop a collection by winning an opponent's pieces.

Furthermore, this embodiment provides a disc whereby the shape profile allows for stable vertical stacking of a group of discs. As already described, each disc may be used as an aerodynamic flying disc. In the context of this aspect of use as a game piece, a disc or stack of discs may be thrown against another stack of discs for purpose of dislodging said stack. Thus the three disc attributes of collectable visual images, stacking and flying are involved in a game application.

In the game commonly known as POGS or Milk Caps, a series of small discs with a variety of visual images on the surface of the discs are used as a child's game.

The discs are collectable novelty items, such that a child collects POGS to build up a collection with different patterns or pictures. POGS also form part of a child's game, which extends beyond mere collection of different patterns or images. For example, children can drop POGS from different heights, each child taking a turn and each successive child attempting to aim his POG so as to fall on the POG of his IW1 27 predecessor. When this happens, he claims not only his own POGS but also those of his predecessor. Alternatively, POGS may be stacked face down and a single POG thrown at the stack with the intention of dislodging POGS from the stack such that they land in an upturned position. In such a manner, the child may increase the number of POGS in his collection at the expense of the playing partner. Some variations on the POGS game have been developed to improve the physical design, allow stacking stability and provide specialised striking tools to aide dislodging POGS in the stack, as example US5624121. However, these are single-purpose devices that do not offer a disc profile designed for aerodynamic flight,allow for secondary usage as a beverage can cap or connect to other specially designed receptacles.

In a further aspect of the embodiment, a multipurpose disc is also an improvement over existing POGS style game pieces. Each disc may be configured as a novelty or collectable item, packaged in a series for retail sale. The disc pieces are used in the game in several ways, first they are designed to be stacked on top of one another in a stable vertical configuration; and second, to be used as a "slammer" piece whereby one disc is thrown at the stack in a manner which uses its aerodynamic flying characteristics; and third having collectable identities, suitable for trading game pieces, presented on the upper surface visible image area. The disc is not simply intended for use as a game piece, as other attributes enable its use in other distinct applications.

Furthermore, the disc is intended for use in habitable ambient temperatures generally in the range of -20 C to +80 C, such as found in domestic freezers or refrigerators, to outdoor sun and vehicle conditions. The material of the disc allows some mechanical flexibility, such that it may be flicked by a user's finger, bounce off of hard surfaces, allow for flexible movement required for attaching and removing from a suitably designed receptacle or beverage can, be propelled from a launching device including but not limited to a gun, catapult or crossbow, and improve safety aspects when used as a child's game piece or toy. The material may allow the disc to biodegrade minimising environmental consequences of disposal.

loll 28 Although the invention has been described in relation to the preceding example embodiments, it will be understood by those skilled in the art that the invention is not limited thereto, and that many variations are possible falling within the scope of the invention. For example, methods for performing operations in accordance with any one or combination of the embodiments and aspects described herein are intended to fall within the scope of the invention.

The scope of the present disclosure includes any novel feature or combination of features disclosed therein either explicitly or implicitlyor any generalization thereof irrespective of whether or not it relates to the claimed invention or mitigates any or all of the problems addressed by the present invention. The applicant hereby gives notice that new claims may be formulated to such features during the prosecution of this application or of any such further application derived therefrom. In particular, with reference to the appended claims, any number of features from any one or more claims may be combined in any appropriate manner and not merely in the specific combinations enumerated in the claims.

It is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.

Although reference is made to a "beverage can", this expression also includes a cylindrical container containing any other goods, such as foodstuffs. Although illustrations and dimensions are mentioned in relation to a typical 330ml beverage can, it will be understood by those skilled in the art that the invention is not limited thereto, and that many shape and size variations are possible falling within the scope of the invention.

Although reference is made to a "disc" or a plurality of discs, this expression is understood to mean a shape having a substantially circular profile, where the profile may be circular, or defined by a plurality of edges and corners arranged in a ring, or an oval, or an elliptical, or a polygonal configuration. It will be understood by those 01 29 skilled in the art that the invention is not limited thereto, and that many shape and size variations of said "disc" are possible falling within the scope of the invention.

Although reference is made to "upper surface", this expression is understood to mean the upper or outer surface as shown in Figure 1, to describe features of the disc.

This phrase relates to the same portion of the disc regardless of the disc orientation relative to other objects, space or coordinate systems. Likewise the term "lower surface" is understood to mean the lower or inner surface of the disc as shown in Figure 2, where again it relates to the same portion of the disc regardless of disc orientation relative to other objects, space or coordinate systems.

Although reference is made to "substantially convex" and "substantially concave" these expressions are understood to mean any shape where the gross or overall shape or profile has a convex or concave aspect respectively; and specifically allows for variations in shape which may not entirely be concave or convex; and specifically includes shapes or profiles which may include ribs, ridges, grooves, indentations or flat areas.

Claims

ILo1 30

1 A disc, substantially circular, comprising: a material composition where the primary ingredient is a resilient material; and an inner portion of the upper surface with a substantially flat visual image area accommodating image, graphic or pattern, providing display of decorative or informational material; and a substantially circular periphery lower surface profile including substantially circular groove suitable for engaging with substantially circular rim of a receptacle; and a substantially circular periphery lower surface profile including substantially circular inwardly directed rib which is deformable to allow opposition to removal when engaged with a receptacle; and a substantially circular periphery profile including a lip which projects beyond the extent of a receptacle allowing for manual detachment; and a crosssection shape with substantially convex upper surface and substantially concave lower surface providing aerodynamic lift; and a cross-section shape of lower surface which forms a void space when engaged with a receptacle; and a cross-section gross profile shape with thinnest material region inside the radius of the engagement groove and outside the radius of the inner visual image area allowing increased mechanical flexibility to facilitate attachment to a receptacle; and a cross-section profile shape which provides a partial gaseous seal and/or protection against ingress of foreign objects when engaged with receptacle; and a cross-section profile shape suitable for engaging with a receptacle where said receptacle may be in the form of a container or form part of a vehicle or be carried or worn for improvement in personal safety.

2 A disc as claimed in claim 1 wherein said visual image area is printed, screened or embossed on to disc surface. IL01

3 A disc as claimed in claim 1 or 2 wherein said disc material composition includes some amount of one or more of particulate matter, metallic sputter coating, textured coatings, translucent, iridescent, reflective, luminescent or temperature dependent colouring.

4 A disc as claimed in claim 1 or claim 2 or claim 3 wherein said visual image area provides a substantially circular recessed profile; and said recessed profile provides for an inlaid image component.

5 A disc as claimed in claim 2 or claim 3 or claim 4 wherein said inlaid image component includes a lenticular, holographic, translucent, or prismatic image display component.

6 A disc as claimed in claim 1 wherein disc lower surface forms a void above the upper surface of a receptacle; and said void provides sufficient space to allow storage of one or more secondary objects.

7 A disc as claimed in claim 1 wherein disc periphery profile is configured for engaging a receptacle where receptacle is the upper rim of a beverage can providing a reusable beverage can cap that may be attached, detached; and disc provides a partial gaseous seal over upper surface of beverage can; and disc provides protection against ingress of foreign objects.

8 A disc as claimed in claim 7 wherein said disc lower surface forms a void above the upper surface of said beverage can; and said void is sufficient to allow clearance of beverage can opening device before and after opening procedure, and/or provides sufficient space for storage of one or more secondary objects.

9 A disc as claimed in any preceding claim wherein the lower surface groove surface optionally comprises a rubberised over-mould.

ILo1 32 A disc as claimed in any preceding claim wherein the disc upper surface periphery includes a substantially circular groove and the lower surface periphery includes a substantially circular ridge suitable for engaging with like disc for the stable formation of a vertical stack of two or more said discs for improved resistance to horizontal movement between discs.

11 A disc as claimed in any preceding claim wherein the disc includes an optional addition of a small substantially circular ridge on the lower surface of the disc; and said ridge has a radius inside the radius of the substantially circular groove; and said ridge has a radius outside the radius of the substantially flat inner area; and said ridge is positioned suitable for engaging on the inside cylindrical surface of a receptacle rim, having an affect of increased friction, resisting horizontal movement.

12 A disc as claimed in claims 7 through 11 wherein the rim margin area upper surface of said disc includes an inflection point in the slope of the upper surface profile suitable to enable said disc to engage with the lower profile of a beverage can, increasing resistance to horizontal movement; and one or more said discs are combined with one or more beverage cans to form a vertical stack involving a combination where one or more discs are attached to the upper surface of a respective beverage can, or discs are stacked directly onto one another, and/or involves the lower surface of a can resting on the upper surface of a disc.

13 A disc as claimed in claims 7 through 12 wherein a rim margin of the circumferential edge area is available for labelling, decoration, advertisement, branding, text, or images through embossing, printing or other means.

14 A disc as claimed in any preceding claim wherein said disc has an outside diameter between 25mm and 250mm. 01 33

A disc as claimed in claim 1 wherein the substantially convex upper surface and substantially concave lower surface cross-section shape comprises: an area of maximum thickness and/or increased mass at the outer most circumferential edge for improved gyroscopic inertia in stable flight; and upper and lower surface cross-section shapes provide for aerodynamic lift in

stable flight.

16 A disc assembly comprising a disc of any preceding claim and receptacle wherein receptacle engages to said disc and is disposed to; provide a substrate for attachment to an item of clothing, hat, or rucksack for display and/or enhanced safety through improved visibility; or provide a substrate for attachment to a bicycle for enhanced safety through improved visibility; or provide a substrate configured for attachment to a display board for display and/or storage of a plurality of discs.

17 A disc assembly comprising a disc of any preceding claim and receptacle of claim 13 wherein receptacle is attached using one or more attachment methods of adhesive, Velcro(TM), screws, clips, snaps, pins, stitching, nails, or magnet.

18 A disc assembly comprising a disc of any preceding claim and receptacle wherein receptacle engages to said disc and further comprises; two connected substantially circular slider parts; and a plurality of spherical objects held captive between said slider parts; and said spherical objects are exposed on the assembly lower surface suitable to allow rolling or sliding when in contact with an external surface.

19 A disc assembly as claimed in claim 18 wherein connected slider parts include a cut-out region allowing finger access for detachment from disc.

A disc assembly as claimed in claim 18 or claim 19 wherein slider parts contain a plurality of circular captive socket regions.

good 34 21 A disc assembly as claimed in claim 18 or claim 19 or claim 20 wherein slider parts are connected by an ultrasonic welding method.

22 A disc assembly as claimed in claims 18 through 21 wherein a lateral groove is formed at the outer circumferential edge of the slider parts at the point where they are connected, providing improved mechanical stability by engaging with the disc inwardly directed rib.

23 A disc assembly comprising two discs of any preceding claim and receptacle wherein receptacle engages with two discs and further comprises; a spinning device configured for operation by means of attached string or cord; and each of two outer surfaces of a spinning device are configured for operation as disc receptacles; and engaged discs are aligned with axis of rotation of spinning device; and discs may be manually attached and detached from the outer surfaces of the spinning device without disassembly of spinning device.

24 A disc assembly as claimed in claim 23 wherein voids formed between discs and spinning device allows sufficient volume to accommodate one or more secondary objects for temporary storage, increasing utility of spinning device.

A disc assembly as claimed in claim 23 or claim 24 wherein spinning device periphery includes one or more openings allowing finger access for detachment of disc from spinning device.

26 A disc according to any one of the preceding claims wherein the disc has a smooth curvature profile excluding angular discontinuities suitable for increasing aerodynamic stability and the reduction of air-flow turbulence when in stable flight.

i ol 35 27 A method according to any one of the preceding claims wherein one or more discs are attached to a receptacle.

28 A method of manufacturing a disc according to any one of claims 1 to 25. s

29 A method of assembling discs and spinning device according to any one of claims 1 to 25.

A method of assembling a disc and sliding device according to any one of claims 1 to 25.

31 A disc substantially as described herein with reference to Figures 1 to 32 of the accompanying drawings.

32 A disc assembly configured as a slider substantially as described herein with reference to Figures 21 to 27 or Figure 32.

33 A disc assembly configured as a spinning assembly substantially as described herein with reference to Figures 17 to 20 or Figure 31.

34 A method of assembly substantially as described herein and with reference to the drawings.

An assembly substantially as described herein and with reference to the drawings.

36 A disc, comprising: a material composition where the primary ingredient is a resilient material; and an upper surface with a visual image area accommodating image, graphic or pattern, providing display of decorative or informational material; and a periphery lower surface profile including substantially circular groove suitable for engaging with substantially circular rim of a receptacle; and 1L01 36 a periphery lower surface profile including an inwardly directed rib which is deformable to allow said disc oppose removal when engaged with a receptacle; and a substantially circular periphery profile including a lip which projects beyond the extent of a receptacle allowing for detachment; and a cross-section shape with substantially convex upper surface and substantially concave lower surface providing aerodynamic lift.