Patent Application
20060051458
Multiple layer confectioneries enjoy widespread appeal. Confectionery consumers are attracted to candies having multiple layers, flavors and colors arranged in various creative designs and shapes. Systems for producing such multiple component confectionery articles typically utilize a depositing apparatus that injection deposits two or more fluid confectionery streams into a mold to form the confectionery article. Formation of multiple layer candies requires an ability to control production parameters such as confectionery intake amount and confectionery injection rate, for example.
Conventional depositing apparatuses used in the production of multiple layer candies, however, have several drawbacks. Customary gravity-feed arrangements for the fluid confectionery yield substantial inconsistency in the amount of confectionery drawn into the depositing apparatus. The confectionery deposit amount consequently varies significantly between deposit cycles. In addition, spring loaded depositing valves used in current depositing apparatuses are prone to sealing problems resulting in valve leakage and tailing. These and other shortcomings in the art lead to undesirable levels of product reject as uniformity in layer thickness cannot be controlled with a satisfactory degree of accuracy.
A need therefore exists for a confectionery depositing apparatus capable of producing multiple layered confectionery articles with a high degree of accuracy and control. A need further exists for a precision confectionery depositing apparatus capable of forming thin layers of confectionery product and thin coating layers in particular.
The present invention provides a confectionery depositing apparatus and method that deposits one or more confectionery streams with an improved degree of control and accuracy. The present invention thereby provides an apparatus capable of depositing precise amounts of flowable confectionery product in layer form. The depositing apparatus of the present invention is particularly suited to form very thin uniform layers of confectionery product.
In an embodiment, the confectionery depositing apparatus includes a source of a flowable confectionery, a cylinder, and a rotary valve in fluid communication with the source of flowable confectionery, and the cylinder. Placement of the rotary valve in a first position permits the flowable confectionery into the cylinder and placement of the rotary valve in a second position permits dispensing of the flowable confectionery from the cylinder out of the apparatus. The rotary valve includes a channel that establishes fluid communication between the source and the cylinder when the rotary valve is in the first position and fluid communication between the cylinder and an outlet when the rotary valve is in the second position.
In an embodiment, the apparatus also includes a piston in cooperative or otherwise operational engagement with the cylinder. Movement of the piston in a first or upward direction transfers the flowable confectionery into the cylinder when the rotary valve is in the first position, and movement of the piston in a second or downward direction dispenses the flowable confectionery from the cylinder when the rotary valve is in the second position. In a further embodiment, a very small gap or no gap whatsoever is present between an exterior circumferential surface of the piston head and an interior circumferential surface of the cylinder. In the event a gap is present, the gap may have a length of from about 0 mm to 0.05 mm. This tight operative engagement between the piston and cylinder interior advantageously provides the apparatus of the present invention to accurately transfer an amount of confectionery from the source into the cylinder and subsequently deposit this amount from the apparatus. In an embodiment, the piston head remains in the cylinder during the movement of the piston. This advantageously provides the present invention with a substantially airtight confectionery intake arrangement.
In a further embodiment, the apparatus deposits successive amounts of confectionery articles. The weight variance between these successive amounts may be between from about 0.01% to about 1.0%.
In a further embodiment of the present invention, a confectionery depositing apparatus for producing a laminated confectionery article is provided. The apparatus includes a first source of a first flowable confectionary and a second source of a second flowable confectionary, a first cylinder and a second cylinder corresponding to the first and second sources respectively and a rotary valve in fluid communication with the first and second sources and the first and second cylinders. Placement of the rotary valve in a first position permits the transfer of the first confectionery and the second confectionery to the first and second cylinders respectively and placement of the rotary valve in a second position permits dispensing of the first confectionery and the second confectionery from the first and second cylinders respectively.
In an embodiment, the apparatus also includes a nozzle in fluid communication with the rotary valve. The nozzle may deposit the first and second confectionery into a mold having a diameter substantially equal in length with the diameter of the nozzle. This arrangement prevents the first and second confectionery streams from adversely commingling with each other. Alternatively, the length of the nozzle diameter and the mold diameter may be different to mix the confectionery streams as desired.
In an embodiment, the apparatus may also include a first piston and a second piston in cooperative operation with the first and second cylinders respectively. Movement of the first and second pistons in a first or upward direction transfers the first and second confectionery to the respective first and second cylinder when the rotary valve is in the first position. Movement of the pistons in a second or downward direction dispenses the first and second confectionery from the respective first and second cylinders into the nozzle when the rotary valve is in the second position. Consequently, the nozzle may be used to coextrude the first confectionery with the second confectionery when the rotary valve is in the second position. The coextruded first confectionery stream may encase the second confectionery stream.
In an embodiment, the first piston may be moved at a rate different than the rate of movement for the second piston. Alternatively, the piston head diameter, the stroke distance, and/or the confectionery density may be varied to coextrude different amounts of first and second confectioneries.
A method of producing a confectionery product is provided in yet a further embodiment of the present invention. The method includes providing a depositing apparatus having a rotary valve in fluid communication with a source of a flowable confectionary, a cylinder, and an outlet. An amount of the flowable confectionery may be transferred into the cylinder when the rotary valve is in a first position. The method includes dispensing the confectionery amount from the cylinder through the outlet when the rotary valve is in a second position. The method also entails moving the rotary valve between the first and second positions.
In an embodiment, the method includes moving a piston that is in operative engagement with the cylinder in a first or upward direction in order to transfer the amount of confectionery from the source into the cylinder. The piston may then be subsequently moved in a second or downward direction to discharge the amount from the cylinder when the rotary valve is move to the second position.
In an embodiment, the method includes determining the quantity of the first amount by moving the piston a first predetermined distance in the first direction and moving the piston the predetermined distance in the second direction to discharge the amount from the cylinder. The first predetermined distance and the second predetermined distance may be substantially equal. The method may further include dispensing successive amounts of confectionery product from the apparatus. The amounts may have a weight variance from about 0.01% to about 1.0%.
A method of producing a laminated confectionery product is provided in another embodiment of the present invention. The method includes providing a confectionery depositing apparatus having a rotary valve in fluid communication with a first source of a flowable confectionary and a corresponding first cylinder, a second source of a flowable confectionary and a corresponding second cylinder, and a nozzle. A first amount of the first confectionery and a second amount of the second confectionery are then transferred into the first and second cylinder respectively when the rotary valve is in a first position. The method includes coextruding the first and second amount from the nozzle when the rotary valve is in a second position to form a multilayered confectionary article. The quantity of the first and second amounts may be the same or different. The extrusion rate of the first and second amounts may be the same or different.
In an embodiment, the method may include discharging the first and second amounts from the respective first and second cylinders into the nozzle when the rotary valve is in the second position to encase the second amount with the first amount. The method may thereby include forming a coated confectionery article.
A further embodiment of the present invention provides a confectionery article. The confectionery article includes a core coextruded to a coating, the coating present in an amount from about 5% to about 30% by weight of the confectionery article. In an embodiment, the coating is substantially continuous and encases or otherwise surrounds the entire core. The composition of the coating and core may be the same or different. In an embodiment, the coating is a composition different than the core. In a further embodiment, coating is present from about 5% to about 10% by weight. In yet a further embodiment, the coating may have a thickness from about 0.05 mm to about 2.0 mm.
In yet another embodiment of the present invention, an apparatus for producing a confectionery article is provided that includes a passageway for accommodating a flow of fluid confectionery. A rotary valve surrounds the passageway and is rotatable about the passageway for dispensing the fluid confectionery from the passageway. In an embodiment, the apparatus further includes a piston and cylinder assembly that may be placed into fluid communication with the passageway when the rotary valve is moved or otherwise rotated to a first position. A piston upstroke may subsequently transfer an amount of fluid confectionery into the cylinder of the piston and cylinder assembly. Rotation of the rotary valve to a second position places the piston and cylinder assembly in fluid communication with a dispensing nozzle. A piston downstroke may then deliver the fluid confectionery present in the cylinder to the dispensing nozzle thereby dispensing the fluid confectionery from the apparatus. In an embodiment, the flow of fluid confectionery is delivered from a fluid confectionery source to the passageway. Any fluid confectionery remaining in the passageway upon completion of the depositing cycle is delivered to the fluid confectionery source through a closed system. The present invention advantageously eliminates evaporation of the fluid confectionery and volatile components therein such as flavors and fragrances during the depositing process. The present invention further promotes production economy as unused fluid confectionery may be reused in subsequent depositing cycles.
In a further embodiment, the apparatus for producing a confectionery article includes a first and a second passageway for accommodating respective first and second flows of fluid confectionery. First and second rotary valves surround the respective first and second passageways for dispensing the first and second fluid confectioneries from the passageways and into a dispensing nozzle. The dispensing nozzle dispenses the first and the second fluid confectioneries from the apparatus. In an embodiment, the dispensing nozzle is a coextrusion nozzle for forming a laminated confectionery article. In an embodiment, the apparatus may include a first and a second piston and cylinder assembly in operative communication with each respective passageway and rotary valve. A piston upstroke when each valve is in a first position may transfer an amount of the first and second fluid confectionery to a respective first and second cylinder. A piston downstroke when the rotary valve is in a second position may deliver the first and second fluid confectionery present in each respective cylinder to the coextrusion nozzle thereby enabling the apparatus to produce a laminated confectionery article.
In a further embodiment, a method for producing a confectionery product is provided. The method includes providing an apparatus having a passageway for accommodating a flow of fluid confectionery and a rotary valve surrounding the passageway for dispensing the fluid confectionery from the passageway and dispensing with the valve an amount of the fluid confectionery from the passageway. In an embodiment, the method includes providing a passageway for accommodating a first flow of fluid confectionery in fluid communication with a first rotary valve circumferentially surrounding the first passageway, and providing a second passageway for accommodating a second flow of fluid confectionery in fluid communication with a second rotary valve circumferentially surrounding the second passageway. The method includes delivering with the first and second valves a respective first amount of the first fluid confectionery and a second amount of the second fluid confectionery to a dispensing nozzle and coextruding the first amount and the second amount from the nozzle.
Additional features and advantages of the present invention are described in, and will be apparent from, the following Detailed Description of the Invention and the figures.
Referring to the Figures generally, where like reference numerals denote like structure and elements, and in particular to
Confectionery sources 12 and 14 may be any container or reservoir suitably adapted to contain or otherwise hold a quantity of flowable confectionery product as is commonly known in the art, such as a hopper, for example. The confectionery product may be any confectionery substance, material, or compound that is a fluid or may take a flowable form. The confectionery product of the present invention may be a syrup or a liquid, for example. In addition, the confectionery product may be melted, or dissolved at a temperature above ambient to become flowable as is commonly known in the art. The skilled artisan will appreciate that the moisture content (and concomitant viscosity) of the confectionery product may vary greatly. The moisture content of the flowable confectionery is typically in the range of about 2% to about 12% by weight of the confectionery product. The flowable confectionery product may then be deposited into a mold or a shape-defining receptacle wherein the confectionery product subsequently solidifies at room temperature to form a solid confectionery article such as a hard candy, a soft candy, a chewing gum or combinations thereof. Nonlimiting examples of suitable confectionery products that are flowable or may placed into a flowable state include syrups, liquids or solids for making hard candies, soft candies, lollipops, fondants, toffees, jellies, chewing gums, chocolates, gelatins and nougats. The confectionery product of the present invention may include sugar or may be sugar-free. Coloring may be added to each confectionery product as desired. The confectionery product may also be substituted by a pharmaceutical product or a medicament that may prepared into a flowable state in a similar manner.
Apparatus 10 may include as few as a single confectionery source to as many as three, four, or five or more confectionery sources. Each confectionery source may include heating elements (not shown) to maintain the confectionery product in a flowable state. The sources may be adapted to maintain each confectionery product at the same or at different temperatures. Covers 24 and 26 may be removably attached to sources 12 and 14 respectively permitting addition of the confectionery product into each respective source. Covers 24 and 26 may then be used enclose the inner areas of each confectionery source in order to protect the confectionery product from contaminants. The confectionery product contained in sources 12 and 14 may the same or different. In an embodiment, each confectionery source contains a different confectionary product.
Sources 12 and 14 are in fluid communication with housings 16 and 18 as shown in
The top of each cylinder includes a cylinder opening 35 and the top of each inlet includes an inlet opening 36. Inlet opening 36 is exposed to a lower area of the confectionery source thereby placing inlet opening 36 in fluid communication with the flowable confectionery product contained in sources 12 and 14. This configuration permits the flowable confectionery product to readily enter the inlets 30 and flow through a respective duct 34 to rotary valve 22. Each cylinder 28 is associated with or mated with a respective inlet 30. Each housing 16 or 18 may include from one cylinder/inlet pair to as many as five, 10, 20, or 30 or more cylinder/inlet pairs. It is understood that description of a single cylinder and/or inlet applies equally to each cylinder and/or inlet.
Although
Referring to
In an embodiment, rotary valve 22 includes a channel 44 having a transfer passage 46 and a dispensing passage 48 as shown in
When the rotary valve is rotated or moved to the second position, dispensing passage 48 moves into fluid communication with cylinder 28 permitting the amount of flowable confectionary product present in cylinder 28 to be dispensed therefrom. In particular, when rotary valve 22 is in the second position, the flowable confectionery present within cylinder 28 flows into dispensing passage 48 and flows out from the bottom of manifold 20 through a manifold outlet 50 as shown in
In an embodiment, a piston 54 is in operative engagement with a respective cylinder 28 as shown in
In an embodiment, piston 54 may be moved in an upward direction when rotary valve 22 is in the first position as shown by arrow B in
In an embodiment, a small gap D may be present between the exterior circumferential surface of piston head 58 and the interior circumferential surface of cylinder 28 as is shown in
The small length of gap D or the absence of the gap altogether and the concomitant tight fit between piston head 58 and the inner surface of cylinder 28 enables apparatus 10 to deposit confectionery product with a high degree of accuracy. Piston head diameter (and cylinder diameter), stroke length, and confectionery density may be varied as desired to deposit confectionery product with a high degree of precision. An advantage of the present invention is that the only significant factor influencing variance between deposit runs or batches is stroke variance. Consequently, the present invention provides deposited confectionery product or articles having a weight variance between successive deposit amounts from about 0.01% to 1% with successive deposit amounts typically experiencing less than 0.6% weight variance. This is a substantial improvement over conventional confectionery depositing systems which typically experience weight variance from about 10% to about 20% or more.
Not wishing to be bound by any particular theory, the significant improvement in depositing precision provided by the present invention may be partially due to the avoidance of a gravity feed system by the present invention. Conventional gravity-fed confectionery depositors require a wide tolerance between the piston head and the inner cylinder surface in order to provide adequate space for confectionery to flow into the cylinder. Removal of the piston head from the cylinder chamber during conventional piston upstroke further contributes to high weight variance between successive deposit amounts. Moreover, the presence of openings in the cylinder walls for confectionery product inflow further contributes to the low accuracy of current systems. Conventional gravity-fed depositors also require dwell time to allow the flowable confectionery to enter the cylinder. The present invention eliminates dwell time as the closed pressure-feed system requires very little time to fill the cylinder with confectionery. The tight fit between the piston head and the inner cylinder surface, the closed pressure-fed confectionery delivery system, and the rotary valve each contribute to provide a confectionery depositing apparatus with exceptional accuracy.
Rotary valve 22 also contributes to the accuracy of the amount of confectionery deposited by apparatus 10. It is commonly known in the art that once the flowable confectionery is deposited from the nozzle, a small amount of confectionery product, known as a tail, may remain suspended from the nozzle outlet. This tail may eventually fall into the formed confectionery article. The tail may also remain on the nozzle to be deposited during the next deposit cycle. Either event may cause undesired disparity between the weight, size and appearance of the finished confectionery article. In addition, the tail may further deleteriously impact the surface texture of the finished article and any coating layer in particular.
In an embodiment of the present invention, the pistons may be moved in the first upward direction a short distance once the confectionery product is discharged from each cylinder. This is performed while the rotary valve is in the second or dispensing position. In this manner, the tail may be pulled into the transfer passage of the rotary valve thereby preventing the tail from adversely affecting the confectionery article formed.
Alternatively, the movement of the pistons in the downward direction may be synchronized with returning the rotary valve to the first position. Immediately upon completion of depositing the confectionery product from the cylinder, the rotary valve may be moved back to the first position to prevent formation of the tail altogether. In a further embodiment, movement of the rotary valve from the second or depositing position back to the first or transfer position may be coordinated with the small movement of the piston in the upward direction to ensure capture of the tail within the transfer passage.
In a further embodiment of the present invention, apparatus 10 may be configured to deposit more than one flowable confectionery product in order to produce a laminated confectionery article. Apparatus 10 may be adapted to dispense a plurality of flowable confectionery products. The number of cylinders, inlets, bores, ducts may be increased to provide an increased number of layers for the confectionery article as desired. In addition, rotary valve 22 may be adapted to include multiple transfer and dispensing passages to transfer and dispense multiple flowable confectionery products. For example,
In this embodiment, a first flowable confectionery 60 (indicated by diagonal hash marks) contained in source 12 and a second flowable confectionery product 62 (indicated by small circles) contained in source 14 may be transferred to cylinders 28a and 28b respectively as shown in
In an embodiment, nozzle 63 deposits streams of first and second confectioneries 60 and 62 into a mold 68 as shown in
In an embodiment, nozzle 63 and mold 68 are configured so that the length of the diameter of mold 68 is substantially the same as the length of the diameter of nozzle end 70. This arrangement prevents swirling or commingling of the confectionery streams 60 and 62 during deposit into mold 68. Provision of mold 68 having substantially the same diameter of nozzle end 70 thereby enables the stream of coextruded first confectionery 60 to encase or otherwise completely surround the stream of coextruded second confectionery 62 to form a wholly coated confectionery article. Alternatively, the diameter of mold 68 may be greater or less than the diameter of nozzle end 70 to form a multi-layered confectionery article having a spiraled, curled, swirled or otherwise textured appearance.
The respective pistons associated with and in operative engagement with cylinders 28a and 28b may be configured to move at different rates during coextrusion of first and second confectioneries 60 and 62 (i.e., when rotary valve 22 is in the second position).
A further advantage of the present invention is that the provision of the tight tolerance between piston head 58 and the inner surface of cylinder 28 enables apparatus 10 to accurately deposit small amounts of flowable confectionery. By adjusting the upward distance traveled by the piston as well as the piston downward rate of motion, apparatus 10 may produce coextruded confectionery articles having very thin layers. For example, the piston in operative engagement with cylinder 28a may be configured to move only a short upward distance to transfer a small amount of first confectionery 60 into cylinder 28a compared to the upward distance traveled by the piston associated with cylinder 28b. Moreover, the downstroke piston rate for the piston in operative engagement with cylinder 28a may be slower than the downstroke piston for the piston in operative engagement with cylinder 28b in order to form a confectionery article having a thin uniform outer coating of first confectionery 60 that surrounds a larger inner core of second confectionery 62. The nozzle outlet size and the piston downstroke may be adjusted to deposit very thin single or multiple confectionery layers having substantially uniform thickness. In an embodiment, apparatus 10 may be used to produce confectionery layers having a thickness from about 0.05 mm to about 2.0 mm.
In another embodiment, the present invention provides a confectionery article 72 produced by apparatus 10. Confectionery article 72 includes a core 74 and a coating 76 as shown in
The composition of core 74 and coating 76 may be the same or different. In an embodiment, coating 76 is a different confectionery product than core 74. In a further embodiment, coating 76 is substantially continuous and completely encases or otherwise covers or surrounds the entirety of core 74. In a further embodiment, coating 76 has a uniform thickness.
An advantage of the present invention is the capability of apparatus 10 to accurately deposit as well as coextrude uniform layers of flowable confectionery product. The tight tolerance between each piston and respective cylinder provides apparatus 10 with a high degree of accuracy 1) for depositing relatively small amounts of confectionery and 2) for controlling the rate at which the confectionery is deposited. Thus, laminated confectionery articles produced by apparatus 10 may exhibit fine, thin coextruded layers and/or coatings having a uniform thickness. In an embodiment, coating 76 coextruded to core 74 may be present in an amount from about 5% to about 30% by weight of the confectionery article. In a further embodiment, coating 76 may constitute from about 5% to about 10% by weight of the confectionery article. In yet a further embodiment, coating 76 may be from about 0.05 mm to about 2.0 mm thick and has a substantially uniform thickness about the entire confectionery article.
Although
The passageways each include a respective fluid confectionery inlet and an outlet. Passageway 106 has an inlet 110 and an outlet 114 as shown in
Each manifold inlet 116, 118 may be placed in fluid communication with a source of fluid confectionery (not shown) with piping or tubing as is commonly known in the art. In an embodiment, a pump (not shown) may be placed in operative communication with the fluid confectionery source and the manifold inlet to deliver a flow of fluid confectionery into the passageway. In a further embodiment, the manifold outlet is placed in fluid communication with the source of fluid confectionery to provide a closed system. In this configuration, the pump may be used to deliver the fluid confectionery through the manifold and passageway inlets, into and through the passageway, out through the manifold and passageway outlets and back to the fluid confectionery source.
A closed system is advantageous in several respects. A closed system protects the fluid confectionery from contamination. A closed system also permits the recycle or reuse of any fluid confectionery remaining in the passageway after completion of a depositing cycle (as will be discussed in detail below). Indeed, an advantage of the present invention is that the closed system, and the flow-through passageway in particular, reduces or altogether eliminates evaporation of fluid confectionery during the confectionery depositing process. Equally advantageous is that the closed system/flow-through passageway arrangement prevents the escape or evaporation of any volatile flavors or fragrances typically included in the fluid confectionery.
Rotary valves 124, 126 surround respective passageways 106 and 108 as shown in
Rotary valve 124 also includes intake orifice 127 that is aligned to permit fluid communication between passageway inlet 110 and manifold inlet 116. Rotary valve 124 further includes outlet orifice 129 that is aligned to permit fluid communication between passageway outlet 114 and manifold outlet 120.
In another embodiment, the circumference of the outer passageway surface may be constant along substantially the entire passageway length, while the circumference of the passageway inner surface may decrease between the inlet and the outlet. This provides the passageway inner surface with a tapered shape, or alternatively, an elongated frustoconical shape in the direction of fluid flow—from inlet to outlet. Such a tapered inner passageway surface (i.e., a large passageway cross section near the inlet and a smaller passageway cross section near the outlet) may be advantageous in promoting a constant confectionery flow throughout the entire length of the passageway. In a further embodiment, a heating element may be disposed proximate the passageway. The heating element may be disposed between the inner surface of the rotary valve and the passageway outer surface. Alternatively, the heating element may be disposed along the external surface of the rotary valve or within the manifold. In an embodiment, the heating element maintains the temperature of the fluid confectionery flowing through the passageway from about 100° C. to about 150° C.
Each rotary valve 124, 126 is attached to a respective arm 128, 130. Each arm is attached to a respective rod 132, 134 that is propelled in an upward and downward motion by a power source (not shown) as is commonly known in the art. The same or different power source may be used to drive arms 132, 134. The upward and downward motion of the rods moves the respective arms to drive or otherwise move each rotary valve between a first position and a second position. In an embodiment, a lubricant may be introduced between the inner surface of the rotary valve and the outer surface of the passageway to reduce friction therebetween. In another embodiment, a sleeve made of TEFLON® or the like may be placed between the outer passageway surface and the inner valve surface to promote rotation of the rotary valve about the passageway.
Manifold 102 includes bores 136a, 136b and 136c adapted to place respective piston and cylinder assemblies 138a, 138b and 138c into fluid communication with passageway 106. Piston and cylinder assemblies 140a, 140b, and 140c are placed in fluid communication with passageway 108 in a similar manner with bore 142 placing piston and cylinder assembly 140a into fluid communication with passageway 108 as shown in
Passageway apertures 144a, 144b, 144c disposed on passageway 106 are aligned with bores 136a-c respectively. When rotary valve 124 is placed in the first position, intake passages 146a, 146b, 146c of rotary valve 124 align with bores 136a-c respectively and passageway apertures 144a-c respectively to place passageway 106 in fluid communication with piston and cylinder assemblies 138a, 138b, 138c. Similarly, when rotary valve 108 is placed in its respective first position, intake passage 147 of passageway 108 is moved between passageway aperture 145 and bore 142 thereby placing passageway 108 in fluid communication with piston and cylinder assembly 140a.
Each rotary valve further includes a dispensing channel for dispensing the fluid confectionery transferred into the cylinder chamber. The number of dispensing channels disposed upon the rotary valve typically corresponds to the number of piston and cylinder assemblies present in the manifold. For example,
Upon completion of upstroke E, rotary valves 124, 126 are moved to the second position as shown in
Downstroke F of piston 150 dispenses the first fluid confectionery 152 from cylinder chamber 148 through dispensing channel 154a, through duct 160 and into nozzle 164. Downstroke G of piston 166 dispenses a second fluid confectionery 168 from cylinder chamber 158 through duct 162 and into nozzle 164. In an embodiment, nozzle 164 simultaneously dispenses first and second fluid confectioneries 152 and 168 into a separate confectionery mold 170. In a further embodiment, the amount of fluid confectionery transferred into the cylinder chamber is substantially equal to the amount of fluid confectionery dispensed from the apparatus. The rate and magnitude of downstrokes F and G may adjusted to vary the amounts of the first and second confectioneries present in the final confectionery article as desired. The final confectionery article may be laminated or encapsulated as previously discussed.
Rotary valve 124 may be designed so that intake orifice 127 may or may not permit fluid communication between inlet 110 and manifold inlet 116 when rotary valve 124 is in the first or second position as desired. Rotary valve 124 may similarly be configured so that outlet orifice 129 may or may not permit fluid communication between outlet 114 and manifold outlet 120 when rotary valve 124 is in either the first or second position. In an embodiment, rotary valve 124 is designed to prevent flow of fluid confectionery into inlet 110 when the rotary valve is in the first position. Rotary valve 126 may be designed in a similar manner. The diameter of the cylinder chamber and piston head may be varied as desired to vary the thickness of each coextruded layer of confectionery product. One of ordinary skill in the art will appreciate that the diameter for the corresponding bore, passageway aperture, valve intake passage, dispensing channel, duct and nozzle may likewise be adjusted to accommodate the diameter of the cylinder chamber. Tables 1 and 2 provide several examples whereby the piston diameter (and cylinder diameter) are varied to produce a laminated confectionery article with laminate layers of varying thickness.
The fluid confectionery flow rate within the passageway may be adjusted in order ensure that a sufficient amount of fluid confectionery is present in the passageway before and during the depositing cycle (the depositing cycle being 1) valve rotation to the first position, 2) piston upstroke, 3) valve rotation to second position, 4) piston downstroke). In an embodiment, from about 95% to about 99% of the fluid confectionery present in the passageway is deposited from apparatus 100 upon completion of the depositing cycle. The amount of fluid confectionery remaining in the passageway after the depositing cycle may be delivered with the pump out of the manifold inlet to the source of fluid confectionery. This allows the unused fluid confectionery to be used in a subsequent depositing cycle. One of ordinary skill in the art will appreciate that the flow rate may vary to account for the length of the passageway, the density and/or the viscosity of the fluid confectionery and the number of piston and cylinder assemblies present in apparatus 100. In a further embodiment, the flow rate of the fluid confectionery through the passageway is adjusted to ensure that no air bubbles or other gasses are present in the fluid flow system. Elimination of air or gas in the system increases depositing and accuracy and reproducibility.
By way of example and not limitation, examples of the present invention will now be given.
Volume = stroke × diameter × diameter × pi/4
Weight = Volume × density
Volume = stroke × diameter × diameter × pi/4
Weight = Volume × density
It should be understood that various changes and modifications to the presently preferred embodiments described herein will be apparent to those skilled in the art. Such changes and modifications can be made without departing from the spirit and scope of the present invention and without diminishing its intended advantages. It is therefore intended that such changes and modifications be covered by the appended claims.
This application is a continuation-in-part of U.S. patent application Ser. No. 10/933,954 filed on Sep. 3, 2004.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 10933954 | Sep 2004 | US |
| Child | 11071373 | Mar 2005 | US |
