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[0001] 1. Field of the Invention
[0002] The present invention relates to a method of making or manufacturing gaming dice and to a die which is made by the method. The invention can be used to make any kind of dice, e.g., board game dice, but has particular application to making gaming dice (whether a single die or a pair of dice) which are used in major casinos or professional gambling establishments.
[0003] It should be noted that the term gaming dice, as used throughout this application, is intended to encompass either a single die or a pair of dice, whether used for gaming or otherwise. Moreover, the invention is not limited to dice which are cube shaped, and may have application to dice which have more or less than 6 sides, e.g., 4-sided, 5-sided pyramid shaped dice or dice having more sides, e.g., 8, 10, 12, sides etc., whether cube-shaped or otherwise.
[0004] 2. Discussion of Background Information
[0005] The gaming dice used in casinos in the United States typically are used for approximately 8 hours, after which they are destroyed. When such dice fall on the floor, or are otherwise removed from the gaming table by a player, they are typically checked to make sure they have not been switched and/or otherwise replaced by counterfeit dice. Casinos are willing to go to great lengths to ensure that the dice they use are those which they approve of. As a result, casinos usually require dice that have security features and/or properties which they can verify.
[0006] FIGS.
[0007] With reference to
[0008]
[0009]
[0010] The drilling in this procedure may occur as follows: the cube is placed in a fixture and a drill or a flat bottom milling cutter is plunged into a side of the cube to form each hole until the required number of circular recesses or holes are formed, i.e., one for each spot. It is preferred that the holes have a flat bottom and that the hole be relatively shallow, i.e., not very deep. The purpose of the holes is merely to retain the paint that will be poured into them later on to define the spots (see
[0011] The drilling is typically performed manually by an operator and is very labor intensive. The operator usually places a die into a right angle (90 degree) stop or fixture and pushes the die against the stop with one hand. With the other hand, the operator brings down the drilling unit, thereby drilling one hole at a time. The drilling machine is first set to drill corner holes of sides which require such, i.e., sides which will have two or more holes. Thus, sides which are to have 2 and 3 spots will have only their opposite corner holes drilled, whereas sides which are to have 4, 5 and 6 spots will have all four corner holes drilled. The operator will typically drill up to as many as 800 dice in a batch, e.g., 8 boards of 100 dice each. Then, the operator changes the drill position so that the outer middle holes of the side which will have 6 spots can be drilled. Finally, the drill is positioned and/or set to a position wherein the middle holes can be drilled on the sides that will have 1, 3 and 5 spots.
[0012] In particular applications of the dice, such as those used in professional gambling houses, it is important to drill the holes to a consistent depth. This allows for the production of dice which can be more substantially balanced. If the differences between the depths of the holes on different sides is too great, there may result a weight difference between the sides or faces of the die which can produce a die which is biased and/or otherwise unbalanced, i.e., one or more sides of the die may have greater or lesser weight and one of more other sides of the die.
[0013]
[0014] Spotting is typically a hand operation performed by an operator and is similarly very labor intensive. The operator usually places a batch of boards (with each board containing 100 dice), all of whose same sides face in the same direction, e.g., such that all of the sides that will receive 5 spots face upwards. Next, the operator uses a manual dispenser and drops a sufficient quantity of the appropriate paint, e.g., white paint, into each hole of the dice. When all of the upward facing holes of all of the dice in the batch are filled with paint, the operator places the boards of dice into a cabinet in order to allow the paint to dry for a certain time. In the case where the curing is to occur at room temperature, the paint can take overnight to cure and/or dry. In the case where it is desired to dry or cure the paint in a quicker manner, an oven can be used to reduce the curing time down to a few hours or less, e.g., by heating in an oven for 15 minutes at a temperature of approximately 150 degrees F. The curing can also be accomplished using a UV curing process and the appropriate UV sensitive paint. It should be noted that curing or drying, as used herein, refers to the solidifying of the paint. The spotting process is repeated for each side of the dice that is to have its holes filled with paint, until all of the sides of all of the dice are spotted.
[0015] The paint is usually a white very opaque type resin that does not shrink away with age and that bonds well with the cellulose acetate. It is also important that the paint is of the type which does not fall out of the spot holes when the dice are in use.
[0016] In particular applications of the dice, such as those used in professional gambling houses, it is important to use paint that has a density which is very close and/or substantially equal to the density of the material from which the dice are made. This allows for the production of dice which are substantially balanced. If the differences between the density of the paint versus that of the dice material is too great, there may result a weight difference between the sides or faces of the die, resulting in the die being biased and/or otherwise unbalanced, i.e., one or more sides of the die may have greater or lesser weight and one of more other sides of the die.
[0017]
[0018]
[0019]
[0020]
[0021]
[0022]
[0023] The finishing operation will now be described. Each die, e.g.,
[0024] Thereafter, each die is removed and re-positioned into the carriage
[0025]
[0026]
[0027] Prior art gaming dice are also available in many colors such as medium red, dark red, green, pink, blue and amber. They are typically made of a cellulose acetate material that is formulated to give the dice ultimate clarity, harness, and dimensional stability. Moreover, they may be made to have various finishes such as a sand finish, which is considered to be a standard finish, or a polished finish. The dice can even be micro-lapped to {fraction (1/10,000)}th of an inch to produce very fine and smooth dice. The edges of the dice may also be made such that they are razor sharp or slightly beveled with either a feather, rounded, or beveled edge. However, razor sharp edges are standard. In games such as Chuck-A-Luck and Pai-Gow Poker, rounded edges are preferred. Dice which are classified as polished finish are made such that the logo scalping and finishing are two distinct procedures, whereas dice which are classified as sand finish will be made such that the logo scalping and finishing are performed as a single procedure.
[0028] Conventional gaming dice may also utilize hidden letter keying in which a letter is placed under a spot on one side of the die (i.e., a letter is stamped at the bottom of the hole before the hole is filled with paint), such as the “Ace spot” (i.e., the center spot of side
[0029] Typically, the die which are used in the gaming industry will have a total of
[0030] Throughout the process, the dice are also subjected to quality checks and inspections, including a final inspection. These inspections can occur between the rough cutting and the diamond cutting and also after each or all of the later stages in order to ensure that the dice are being made properly.
[0031] As should be apparent, such a large number of procedures and/or such elaborate procedures for making gaming dice tend to make such dice made thereby relatively expensive. Moreover, a direct result of having so many procedures means that less dice can be produced in a given manufacturing area and in a given time period.
[0032] Accordingly, the invention is directed to the manufacture gaming dice using a more efficient process. Moreover, the present invention is directed to more inexpensively manufactured gaming dice. Because the spots are provided on the dice when it is in its final stage of manufacturing, unlike in the prior art, one can maintain a smaller inventory of unfinished dice and customize the spot printing to the customer's needs. For example, using the prior art method, one cannot change dice which have been drilled to have bird's eye spots into dice having plain spots.
[0033] In accordance with a first aspect of the invention, the invention provides for a method of making dice which avoids hole drilling, spotting and scalping of the spots and instead utilizes pad printing techniques to place the spots on each of the dice.
[0034] In accordance with a second aspect of the invention, the invention provides for a method of making dice which avoids rough cutting, hole drilling, spotting and scalping of the spots and instead utilizes pad printing techniques to place the spots on each of the dice.
[0035] In accordance with a third aspect of the invention, the invention provides for a method of making dice which avoids hole drilling, spotting, scalping of the spots, logo stamping and logo scalping, and instead utilizes pad printing techniques to place the spots and the text on each of the dice.
[0036] In accordance with a fourth aspect of the invention, the invention provides for a method of making dice which avoids rough cutting, hole drilling, spotting, scalping of the spots, logo stamping and logo scalping, and instead utilizes pad printing techniques to place the spots and the text on each of the dice.
[0037] In accordance with a fifth aspect of the invention, the invention provides for a method of making dice which avoids rough cutting, hole drilling, spotting, scalping of the spots, logo stamping, logo scalping and finishing, and instead utilizes pad printing techniques to place the spots and the text on each of the dice.
[0038] In accordance with a sixth aspect of the invention, the invention provides for a method of making dice which avoids cutting from stock, rough cutting, hole drilling, spotting, scalping of the spots, logo stamping, logo scalping and finishing, and instead utilizes pad printing techniques to place the spots and the text on each of the dice.
[0039] The invention further provides a method of making one or more die of a pair of dice that includes pad printing at least one of spots and text on at least one surface of the die.
[0040] The invention also provides a method of making one die or a pair of dice that includes sizing at least one die and pad printing at least one of spots and text on at least one surface of the die.
[0041] The invention also provides a method of making one die or a pair of dice that includes cutting a section from bar stock, shaping the section to form at least one die, and pad printing at least one of spots and text on at least one surface of the at least one die.
[0042] The invention additionally provides a method of making one die or a pair of dice that includes cutting a section from bar stock, shaping the section to form at least one die, and pad printing at least one of spots and text on at least one surface of the at least one die.
[0043] Further, a method of making one die or a pair of dice wherein the method includes cutting a section from bar stock, shaping the section to form at least one die, pad printing at least one spot on at least one surface of the at least one die, and pad printing text on at least one surface of the at least one die.
[0044] The invention also provides a method of making one die or a pair of dice wherein the method includes cutting a section from bar stock, shaping the section to form at least one die, stamping text on at least one surface of the at least one die, subjecting the at least one surface to finishing, and pad printing at least one spot on at least one surface of the at least one die.
[0045] The invention also provides a method of making one die or a pair of dice wherein the method includes cutting a section from bar stock, shaping the section to form at least one die, stamping text on at least one surface of the at least one die, subjecting the at least one surface having text stamped thereon to scalping, subjecting the at least one surface to finishing, and pad printing at least one spot on at least one surface of the at least one die.
[0046] The invention also provides a method of making one die or a pair of dice wherein the method includes cutting a section from bar stock, first cutting the section to form at least one die, second cutting the section, stamping text on at least one surface of the at least one die, subjecting the at least one surface having text stamped thereon to scalping, subjecting at least one surface of the at least one die to finishing, and pad printing at least one spot on at least one surface of the at least one die.
[0047] The invention additionally provides a method of making one die or a pair of dice wherein the method includes cutting a section from bar stock, first cutting the section to form at least one die, second cutting the section, stamping text on at least one surface of the at least one die, subjecting the at least one surface having text stamped thereon to scalping, subjecting at least one surface of the at least one die to finishing, and pad printing at least one spot on at least one surface of the die.
[0048] The invention additionally provides a method of making one die or a pair of dice wherein the method includes cutting a section from bar stock, first cutting the section to form at least one die, second cutting the section to finally size the at least one die, stamping text on at least one surface of the at least one die, subjecting the at least one surface having text stamped thereon to scalping, subjecting the at least one surface having text stamped thereon to finishing, and pad printing at least one spot on at least one surface of the at least one die.
[0049] The invention additionally provides a method of making a die of a pair of dice wherein the method includes cutting a section from bar stock, first cutting the section to form a cube having a first size, second cutting the section to substantially finally size the cube, stamping text on at least one surface of the cube, subjecting the at least one surface having text stamped thereon to scalping, subjecting the at least one surface having text stamped thereon to finishing, and pad printing at least one spot on the at least one surface having text stamped thereon.
[0050] Thus, the invention provides a method of making one die or a pair of dice, the method comprising pad printing at least one of spots and text on at least one surface of the die.
[0051] The method may further include sizing, before pad printing, the at least one die. The method may further include finish cutting, before pad printing, a section from bar stock. The method may further include rough cutting, before finish cutting, the section to form at least one die. The method may further include subjecting, before pad printing, the at least one surface to finishing. The method may further include before pad printing, cutting a section from bar stock, shaping the section to form the at least one die, and subjecting the at least one surface to finishing.
[0052] The method may further include, before pad printing, cutting a section from bar stock, shaping the section to form the at least one die, stamping text on at least one surface of the at least one die, and subjecting the at least one surface to finishing.
[0053] The method may further include, before pad printing, finish machining a section of material to form at least one die, stamping text on at least one surface of the at least one die, subjecting the at least one surface having text stamped thereon to scalping, and subjecting the at least one surface having text stamped thereon to finishing.
[0054] The method may further include, before pad printing, cutting a section from bar stock, first cutting the section to form at least one die, second cutting the section, stamping text on at least one surface of the at least one die, subjecting the at least one surface having text stamped thereon to scalping, subjecting at least one surface of the at least one die to finishing.
[0055] The method may further include, before pad printing, cutting a section from bar stock, first, cutting the section to form at least one die, second, cutting the section to form a cube, stamping text on at least one surface of the cube, subjecting the at least one surface having text stamped thereon to scalping, and subjecting at least one surface of the at least one die to finishing.
[0056] The method may further include, before pad printing, cutting a section from bar stock, first, cutting the section to form at least one die, second, cutting the section to finally size the at least one die, stamping text on at least one surface of the at least one die, subjecting the at least one surface having text stamped thereon to scalping, and subjecting the at least one surface having text stamped thereon to finishing.
[0057] The method may further include, before pad printing, machining a section from bar stock, first machining the section to form a cube having a first size, second machining the section to substantially finally size the cube, stamping text on at least one surface of the cube, subjecting the at least one surface having text stamped thereon to scalping, and subjecting the at least one surface having text stamped thereon to finishing.
[0058] The invention still further provides for a method of making gaming die that includes forming the gaming die with a plurality of sides, and pad printing at least one spot on at least one of the plurality of sides.
[0059] According to the invention, the forming may include sizing the gaming die. The forming may include finish cutting a section from bar stock to form the gaming die. The forming may further include rough cutting, before finish cutting, the section. The forming may include subjecting at least one of the sides to finishing. The forming may include cutting a section from bar stock, shaping the section to form the gaming die, and subjecting at least one side to finishing. The forming may include cutting a section from bar stock, shaping the section to form the gaming die, stamping text on at least one side, and subjecting the at least one side to finishing. The forming may include finish machining a section of material to form the gaming die, stamping text on at least one side, scalping the at least one side having text stamped thereon, and finishing the at least one side having text stamped thereon. The forming may include cutting a section from bar stock, first, cutting the section to form the gaming die, second, cutting the section, stamping text on at least one side, scalping the at least one side having text stamped thereon, and finishing the at least one side having text stamped thereon. The forming may include cutting a section from bar stock, first, cutting the section to form a cube, second, cutting the cube to form the gaming die, stamping text on at least one side of the gaming die, scalping the at least one side having text stamped thereon, and finishing the at least one side having text stamped thereon. The forming may include cutting a section from bar stock, first, cutting the section, second, cutting the section to finally size the gaming die, stamping text on at least one side of the gaming die, scalping the at least one surface having text stamped thereon, and finishing the at least one side having text stamped thereon. The forming may include machining a section from bar stock, first, machining the section to form a cube having a first size, second, machining the section to substantially finally size the cube, stamping text on at least one surface of the cube, scalping the at least one surface having text stamped thereon, and finishing the at least one surface having text stamped thereon. The forming may include machining a section to substantially finally size a cube, stamping text on at least one surface of the cube, scalping the at least one surface having text stamped thereon, and finishing the at least one surface having text stamped thereon. The forming may include machining a section to substantially finally size a cube, and the method may further include pad printing text on at least one of the plurality of sides.
[0060] The invention also provides for a die which is made by any of the above-noted processes.
[0061] Other exemplary embodiments and advantages of the present invention may be ascertained by reviewing the present disclosure and the accompanying drawing.
[0062] The present invention is further described in the detailed description which follows, in reference to the noted plurality of drawings by way of non-limiting examples of embodiments of the present invention, in which like reference numerals represent similar parts throughout the several views of the drawings, and wherein:
[0063] FIGS.
[0064]
[0065]
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[0070]
[0071]
[0072]
[0073] FIGS.
[0074]
[0075]
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[0079]
[0080] FIGS.
[0081]
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[0084]
[0085] FIGS.
[0086]
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[0090] FIGS.
[0091]
[0092]
[0093]
[0094] FIGS.
[0095]
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[0100]
[0101]
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[0104]
[0105]
[0106] The particulars shown herein are by way of example and for purposes of illustrative discussion of the embodiments of the present invention only and are presented in the cause of providing what is believed to be the most useful and readily understood description of the principles and conceptual aspects of the present invention. In this regard, no attempt is made to show structural details of the present invention in more detail than is necessary for the fundamental understanding of the present invention, the description taken with the drawings making apparent to those skilled in the art how the several forms of the present invention may be embodied in practice.
[0107] FIGS.
[0108]
[0109]
[0110]
[0111]
[0112]
[0113] A possible way of finishing the die prior to pad printing can be accomplished by using apparatus
[0114] Also, in a manner similar to that of the prior art finishing, at this point the dice can be made to have the required finishing characteristics, e.g., standard finishing or a special polish finish.
[0115]
[0116] Each side may be pad printed with the required number of spots, e.g., side
[0117] As will be described in more detail later on, one preferred manner for pad printing the dice is described with reference to
[0118]
[0119] FIGS.
[0120]
[0121]
[0122] Although not shown, the invention also contemplates finishing the die in a manner similar to that described with regard to
[0123] Still further, the invention also contemplates a process similar to that shown in FIGS.
[0124] Still even further, the invention also contemplates a process similar to that shown in FIGS.
[0125] FIGS.
[0126] Following the procedures shown in FIGS.
[0127]
[0128] Although not shown, the invention also contemplates utilizing a finishing procedure (i.e., one that is similar to that described with regard to
[0129] Still further, the invention also contemplates a process similar to that shown in FIGS.
[0130] Still even further, the invention also contemplates a process similar to that shown in FIGS.
[0131] FIGS.
[0132]
[0133] Although not shown, the invention also contemplates utilizing a finishing procedure (i.e., a procedure similar to that described with regard to
[0134] Still further, the invention also contemplates a process similar to that shown in FIGS.
[0135] Still even further, the invention also contemplates a process similar to that shown in FIGS.
[0136] FIGS.
[0137] Following the procedures shown in FIGS.
[0138] Although not shown, the invention also contemplates utilizing a finishing procedure (i.e., a procedure similar to that described with regard to
[0139] Still further, the invention also contemplates a process similar to that shown in FIGS.
[0140] One pad printing process will now be described with reference to FIGS.
[0141] In
[0142] The pad-printing operation shown in FIGS.
[0143] In the case where the spots and text are to be applied having different colors or ink types, the plate
[0144] The dice may be placed in fixture without requiring any fixing mechanism which secures them from vertical movement. Alternatively, as shown in FIGS.
[0145]
[0146] A number of pad printing machines and pads may be used to practice the invention. These include those made by the following manufacturers, e.g., IMTRAN, Trans-tech America, Printex, UGI, MORLOC, etc. Examples of such machines are the Trans-tech Sealcup 90, Trans-tech Carousel 80 and Carousel 120, Trans-tech Combi, and IMTRAN's model No. GS-100. Moreover, the machines may be of the single pad type or those using many pads, e.g., 4 pads or more. Good results have been achieved using a closed ink cup system. Such systems are available from Trans-tech America, Printex, and IMTRAN. Additionally, the pads may be round pads or square pads provided they have printing surface and end up in a point for improved application. The pads may be of the soft, medium, or hard type, although medium is preferred. Such pads are available from Trans-tech America, Printex and IMTRAN. Good results have been obtained using an approximately 4.25″ wide round shape pad that is approximately 3″ in height, i.e., such a pad has been found to adequately and successfully print one side of nine dice at a time. Printing plates are also available from Trans-tech America. Good results have been achieved using plates having a thickness of approximately 26 microns after it has been edged and with images, i.e., spots, that are made approximately 10 microns deep. Dice having four colors can been successfully pad printed with six pad printing machines which each have four pads, one for each color. This would allow each side to be printed with all the required options. Using these techniques, dice can be made to have, e.g., four different colors on each side with each color being successively pad printed on a side of the die.
[0147] Of course, the invention contemplates using automated machines to make the dice such as those which are and/or can be used in the prior art method of making dice. These include automatic cutting machines, automatic hot stamping machines and automatic lapping and finishing machines, which significantly reduce the cost and time of the dice manufacturing process.
[0148] Of course, the invention can be practiced with other types of pad designs, such as those having various shapes, sizes, as well as various hardnesses. These can be chosen from the manufacturers' standard or conventional ranges or types. Among these may be mentioned pads of cylindrical shape, polygonal, square, and having a convex end or other shapes which function for their intended purpose. Additionally, the inks or paints which are used to form the spots and/or the text may be any desired type, conventional or otherwise, provided they lend themselves to pad printing.
[0149] As should be apparent, the invention contemplates various methods for making gaming dice which are more efficient and/or less expensive that those known in the prior art. Moreover, a direct result of having fewer procedures means that more dice can be produced in a given manufacturing area and in a given time period. Accordingly, the invention provides for the manufacture of gaming dice using more efficient processes and/or doing so less expensively. Finally, the invention provides for the making of gaming dice which can be made more cheaply, but which retain an appearance that the gaming dice were made using quality manufacturing techniques.
[0150] It is noted that the foregoing examples have been provided merely for the purpose of explanation and are in no way to be construed as limiting of the present invention. While the present invention has been described with reference to an exemplary embodiment, it is understood that the words which have been used herein are words of description and illustration, rather than words of limitation. Changes may be made, within the purview of the appended claims, as presently stated and as amended, without departing from the scope and spirit of the present invention in its aspects. Although the present invention has been described herein with reference to particular means, materials and embodiments, the present invention is not intended to be limited to the particulars disclosed herein; rather, the present invention extends to all functionally equivalent structures, methods and uses, such as are within the scope of the appended claims.