AUTOMATIC BEVERAGE DISPENSING SYSTEM WITH PROGRAMMABLE CUP DROP

Abstract: An automatic beverage dispensing system including a conveyor (42), a multiflavor valve (18), and a programmable cup drop system (34) which includes means for searching through a plurality of separate cup supply tubes (36-38) for a cup of the selected size. It also includes means for throwing the vend away if a cup supply tube is found empty for the selected size.

Description: AUTOMATIC BEVERAGE DISPENSING SYSTEM WITH PROGRAMMABLE CUP DROP CROSS-REFERENCE TO RELATED APPLICATION This application is a continuation-in-part to prior co-pending application serial no. 07/316,010 filed on February 27, 1989, entitled "Automatic Postmix Beverage Dispensing System With Flavor Indicators" and assigned to the same assignee as the present application. BACKGROUND OF THE INVENTION The present invention relates to beverage dispensers and in particular to an automatic beverage dispenser with a programmable cup drop. Automatic postmix beverage dispensers are known, as described for example, in U.S. Patent 4,590,975 incorporated herein by reference. Cup drop mechanisms are also well-known. SUMMARY OF THE INVENTION An automatic beverage dispenser, such as, but not necessarily a postmix dispenser, having a conveyor for advancing cups along a plurality of cup stations including a cup drop station, an ice drop station, a beverage dispense station, and a plurality of separate, spaced-apart cup pick-up stations, a multiflavor valve at the beverage dispense station, flavor indicating means, and programmable cup drop means. The present invention includes a plurality of cup drop mechanisms and an electronic cup drop control system to switch to the next cup drop tube that has an inventory of the selected size of cups when the current cup drop tube is out. Each of the cup drop tubes includes a sensor to determine if the cups in a particular cup drop tube have been deplenished. It is an object of the present invention to provide an automatic beverage dispenser with a plurality of separate cup supplies and with electronic control means for switching from one cup supply to another when the first cup supply is out of the selected size of cups. BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be more fully understood from the detailed description below when read in connection with the accompanying drawings wherein like reference numerals refer to like elements and wherein: Fig. 1 is a perspective view of an automatic dispenser according to the present invention; Fig. 2 is a partial, exploded, partly broken-away, perspective view of the dispenser of Fig. 1; Fig. 3 is a simplified block diagram of the operating system used in the dispenser of Fig. 1; Figs. 4-4H are block and wiring diagrams for the dispenser of Fig. 1; Fig. 5 is a flow diagram of the flavor display operation of the dispenser of Fig. 1; Fig. 6 is a schematic view of a postmix beverage dispenser of the present invention with the means for solving the warm casual drink problem; Fig. 7 is a flow diagram of the purge timer logic; Fig. 8 is a partial, perspective view of a portion to the automatic dispenser showing the cup drop tubes; and Fig. 9 is a flow diagram of the cup drop logic sequence for variable cup positions. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring now to the drawings, Figs. 1 and 2 are perspective views of the automatic beverage dispenser 10 according to the present invention. The dispenser 10 includes an ice bin module 12 having a plurality of single flavor, manual valves 14 and an ice dispenser 15, and an automatic dispense module 16 having an automatic multiflavor valve 18 (alternatively, two or more multiflavor valves 18 can be located at this position) . The ice bin module 12 includes the usual syrup lines, carbonated water lines, still water line(s), and cold plate for cooling the syrup and water lines leading to the valves 14, which can be any known valves. The automatic dispense module 16 is attached to the ice bin module, receives ice therefrom, and includes a cabinet 20, a front panel 168 thereon with a plurality of lights and buttons and a door 35 (for access in case of a cup jam). The front panel includes a series of beverage selector buttons 21, a corresponding "syrup out" light 22 above each button 21, and small, medium, and large buttons 23, 24 and 25 respectively below each beverage selector button 21. The front panel may have other buttons and lights as desired for an automatic beverage dispenser. The automatic dispenser module 16 includes a plurality of syrup lines, a carbonated water line, and a still water line connected to the multiflavor valve 18, which can be any known multiflavor valve. These lines are cooled by the cold plate cooling means in the ice bin module 12. The automatic dispense module 16 also includes a cup drop mechanism 34 (any known mechanism can be used) for three different sizes of cups 36, 37 and 38, a cup drop chute 40, an ice drop mechanism for dropping ice into a dropped cup (any known mechanism can be used), a conveyor 42 including first and second conveyor means 44 and 46, and flavor indicating means including a plurality of flavor indicia 48 located one each adjacent a respective one of a plurality of cup pick-up stations 50 A-G corresponding to cup positions 3-9. The conveyor 42 also provides a cup drop and ice drop station 52 and a beverage dispense station 54. Cup position 1 is the cup and ice drop station 52, and cup position 2 is the beverage dispense station 54. The first conveyor means 44 moves the cup forward from position 1 to position 4. This first conveyor means 42 includes a cup support surface 56 including several parallel rods 58 and a cup moving means 59. The cup moving means includes a stationary rod 60 and a movable sleeve 62 slidable on rod 60. The sleeve 62 is also accurately movable to rotate a plurality of cup engaging arms 64 into and out of cup engagement. The linear movement of the sleeve 62 is caused by a moveable piston 66 in a stationary cylinder 68. The piston 66 is connected to an arm actuator block 70 which is also connected to the sleeve 62 to move the sleeve 62 one cup position at a time each time the pneumatic piston 66 is energized. To rotate the sleeve 62 and arms 64, an arm rotator cylinder 72 is pivotably attached to the block 70 and its piston 74 is attached to a sleeve arm 76. The block 70 has a proximity switch 78 and the sleeve 62 includes a magnet 80 so the control system will know the position of the arms 64. An elastic boot 82 (shown cut away in Fig. 2) surrounds the rod 60 and extends between the sleeve 62 and a rod support 84. The second conveyor means 46 includes a cup support surface 90 comprising several parallel rods 92 and the cup moving means 94 includes a stationary support 96 connected to a pneumatic cylinder 98 having a movable piston 100 connected to a movable support 102 holding a plurality of pneumatic cylinders C-l, C-2, C-3, and C-4 each having a retractable cup-engaging pin 121, 122, 123, and 124. In addition, one additional, fixed, cup-engaging pin 104 is connected to a support member 106 mounted on the movable support 102. When it is time to advance certain cups on the surface 90, selected ones of the cylinders C-l, C-2, C-3 and C-4 are energized causing corresponding ones of the pins 121, 122, 123, and 124 to project out to a cup engaging position. The cylinder 98 is then energized to retract the piston 100 one position. The pins 121, 122, 123, and 124 are then retracted and the piston 100 is projected to its original position. Photoeyes 110 are provided at each cup position 1 and 4-9 to determine if a cup is present. If a cup is removed from position 6, for example, pin 123 would not be extended, so that the empty space could be filled in. Each of the pneumatic cylinders 68, 72, C-l, C-2, C-3, C-4, and 98 in the conveyor 42 are preferably double acting cylinders controlled by solenoids in the gas lines, the solenoids all being preferably located behind the front panel 168. The conveyor 42 includes a plurality of limit switches for use in controlling the conveyor. For example, the first conveyor means first must rotate to bring the arms 64 into cup engaging position before the pneumatic cylinder 68 moves the conveyor one cup position, then it must rotate back before the cylinder returns the conveyor to its original position. The limit switches determine that all prerequisites have occurred before the next step can be taken. For example, if a cup is detected at cup positions P-3 and P-4, then the conveyor means 44 can not advance or dispense another beverage. If a cup is removed from position P-7, for example, conveyor 46 will advance the cups at P-6, P-5, and P-4 one position forward to fill the gap, and then conveyor 44 can also move forward one position and can dispense another beverage. There is no photoeye at cup positions P-2 and P-3. The control system can store 16 orders in the dispenser and more can be stored in the point of sale adapter. The flavor indicating means preferably includes a flavor indicia 48 at each cup pick-up station (positions 3-9) and means for energizing these indicia and for scrolling them every time the conveyor 42 advances cups one position. The term "scrolling" means that the flavor indicia changes to now indicate the flavor in the new cup that has just arrived at that cup pick-up station. Of course, if the next cup has the same flavor as the preceding cup, the new indicia will be the same. In this way, the indicia properly follows a cup along the conveyor until it is removed by an operator at which time the light will go out. In addition to the flavor indicators 48, a second indicator, such as a lighted display, can be included at each station to indicate the order number of the drink such as 27, for example. The dispenser 10 also includes a system for eliminating warm casual drinks. This system is shown schematically in Fig. 7. Fig. 6 is a partial schematic showing of multiflavor beverage dispensing valve 18, and shows a syrup solenoid valve 132, a water solenoid valve 134, a spout 136, a cold plate 138, a syrup line 140, a water line 142, a CPU 144, and a thermometer 146 in the water line. The CPU includes a timer circuit or clock 148. The CPU is programmed such that when a beverage is requested, it will review how much time has elapsed since the last dispense cycle, and if it exceeds a particular value, such as 15 minutes, a purge cycle will be initiated before the requested beverage can be dispensed. It preferably then opens the water solenoid valve while leaving the syrup solenoid valve closed, for a period of time, such as 5 seconds, to allow the water in the uncooled position of the water line to drain out. The thermometer 146 is not used in the preferred system. However, in an alternate embodiment, the thermometer 146 is included and when a new drink is requested, if the temperature is above a selected value, such as 40° F, the water is purged until the temperature is reduced to a desired value, such as 38° F. The casual drink purge system of this invention is preferably applied only to the multiflavor valve 18 and not to the manual valves 14, although it could be applied to manual valves, if desired. For example, an inexpensive timer can be used to purge a manual valve for 5 seconds every time 15 minutes elapses since the last dispense cycle. Returning now to the description of the dispenser 10, Fig. 3 is a simplified block diagram of the system of the present invention. The system includes an on-board computer 160 (which is preferably located in the rear of the automatic dispense module 16, as shown in Fig. 1) connected to all of the water and syrup solenoids 162 in the multiflavor valve 18, the air solenoids 164 in the conveyor 42, the LEDs in the flavor indicia 48, the temperature sensor 146 (in the embodiment in which one is used), syrup sold-out switches 166 connected to corresponding lights on a front panel 168 on the automatic dispense module 16, a keyboard 170 on the front panel 168, conveyor limit switches 172, and a point of sale register 174 which can, if desired, be connected to the computer 160 through a data conversion system 176 and an RS 232 adapter to operate the automatic dispenser 10 directly from the point of sale register 174 on the counter that is used by the operators when taking orders. Figs. 4-4H are the wiring diagrams for connection of external devices to the GE Series One Plus controller used in the preferred embodiment of the automatic dispenser 10 as follows: Fig. 4 is the control system block diagram, Fig. 4A is the 120VAC power distribution wiring, Fig. 4B is the dispensing valve wiring, Fig. 4C is the ice gate system wiring, Fig. 4D is the air solenoid and agitate relay wiring, Fig. 4E is the input switch wiring (limit switch and photoeye) , Fig. 4F is the flavor display wiring - conveyor positions 3 and 4, Fig. 4G is the 12VDC power distribution wiring, and Fig. 4H is the keyboard matrix input wiring. Fig. 5 is a block flow diagram of the operation of the flavor indicia. The automatic dispenser 10 has the ability to prepare soft drinks from a variety of different flavor selections. It is quite likely that several of the flavors have similar visual appearance in the cup, making it difficult for the operator to distinguish one flavor drink from another. The automatic dispenser 10 solves this problem by employing a display element (flavor indicia 48) at each drink pickup position (cup pick-up station 50A-50G, also known as cup positions P-3 to P-9). In the preferred embodiment, the display is a 7-segment LED with decimal. Each flavor is given a unique code to be shown on the display, for example, "C" of cola, "d" for diet cola, and "0" for orange. These codes are created by assigning each segment of the display to a bit in an 8-bit data word in the controller. The code is created by defining the segments to be turned on, and considering the bit value for the segment to be "1". This binary representation is then converted to decimal for handling purposes in the controller. The automatic dispenser 10 controller maintains a record of the display codes of drinks dispensed in a shift register format. The shift register is incremented each time the conveyor 42 moves a cup to a new position. The value of the shift register for positions 3 and higher is converted back to binary, and written to an output that is connected to the associated LED display. Therefore, as a cup is moved on the conveyor 43, its display code is shifted to the associated display element. There is a photoeye 110 associated with each conveyor position 4 and higher. Each photoeye 110 detects the presence of a cup, which allows the automatic dispenser 10 controller to shift the conveyor 42 to fill in gaps as cups are removed from the conveyor 42. These photoeyes 110 are also used by the automatic dispenser 10 controller to blank the display at the conveyor position when a cup is removed. If a cup is removed, but no other cup has yet been advanced to that position, the display code may be recalled by placing the cup back on the conveyor momentarily. This is useful if the operator who removed the cup is distracted, and cannot remember the flavor in the cup. Fig. 7 is a block diagram of the purge timer logic used in the warm water purge system of the present invention. The purge timer function of the automatic dispenser 10 is intended to provide properly chilled soda water at the automatic dispenser dispensing valve 18 before a drink is poured. This is necessary to insure the quality of the beverage to be poured, as the soda temperature is directly related to the amount of carbonation retained, the amount of foam dispensed, and the amount of ice melted in the cup. This function is controlled by the programmable controller that operates the automatic dispenser 10. The purge function in the automatic dispenser 10 operates as a pair of timing functions. The Draw Timer is the master element in the process. This timer is reset every time a drink is dispensed from the valve 18 of the automatic dispenser 10. The Draw Timer has a timeout of 15 minutes in the preferred embodiment. When the Draw Timer has reached timeout, the next call to dispense a drink will operate the purge function. In the automatic dispenser 10 this call occurs when a cup has been dropped into the cup drop and ice drop station (also referred to as position 1), and filled with ice, but before the cup is moved to the beverage dispense station (also referred to as position 2) by the conveyor 42. The Purge Timer is used to control the duration of the purge, once it is initiated. In the preferred embodiment, the Purge Timer has a timeout of 5 seconds. The soda solenoid valve 134 in the automatic dispenser 10 valve 18 is opened for the duration of the Purge Time, allowing the purge to be dispensed into the drain of the automatic dispenser. At the completion of the purge, the conveyor 42 is allowed to move the cup to the beverage dispense station (position 2), and normal operation resumes. Attached hereto as Exhibit A is the ladder logic program listing for the GE Series One Plus controller used in the preferred embodiment of the automatic dispenser 10. Fig. 8 is a partial, perspective view of the automatic dispense module 16 showing four different cup drop tubes referred to as position 1, position 2, position 3 and position 4. Preferably position 1 will preferably contain small, medium or large cups, position 2 small or medium cups, position 3 small, medium, large or extra large cups and position 4 small, medium or large cups. Other arrangements can, of course, be used. The cup drop mechanism is different for small and extra large cups. The same cup drop mechanism can be used for both medium and large cups. Thus, when the dispenser is built in the factory, the decision is made at that time as to what size cups will go in which cup drop tube position, and this will be retained during use so that, for example, position 1 could be a small, position 2 medium, position 3 large and position 4 medium, then this information will be input to the microprocessor at the factory and this mix of cups will be retained during use. Fig. 9 also shows standard cup drop mechanisms 200 and cup drop chutes 202. The cup drop tubes are modified according to the present invention to include a microswitch 204 on each tube with a finger 206 extending through a hole 208 into a position to contact cups in the tubes. When a tube is deplenished down to a selected number of cups, such as for example five, then the finger 206 will move and actuate the microswitch. The operator will then be informed, as by a "low" light, and the electronic control system will also be informed and it will also know that only five cups remain in that tube. Fig. 9 shows the cup drop sequence for variable cup positions. For purposes of discussion assume that position 1 is a small, position 2 medium, position 3 large and position 4 medium. If the last drink was a medium using position 2 then after the cup was dropped, the cup position would move to position 3. Assuming that a next selection required a medium cup, the software would determine whether the current cup position (position 3) was the same as the desired cup size. In this case it would not be because position 3 is a large and the desired cup is a medium. As shown in Fig. 9 flow diagram, the cup position would move to the next cup position of position 4. A determination would then be made if cup position 4 is the position following the last position used for the desired cup size of medium and the answer is no because the position following the last position for the desired cup size of medium is position 3 rather than position 4. The next decision would be whether the cup position that equals the desired cup size, the answer would be yes and the next decision would be whether that position is out of cups. Position 4 is not out of cups it would simply drop a medium size cup. The use of the "position following last position" is to prevent the electronics from simply going around and around if all of the tubes with the selected size of cups were empty. While the preferred embodiment of this invention has been described above in detail, it is to be understood that variations and modifications can be made therein without departing from the spirit and scope of the present invention. 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F41 ! 447 Irlittf Utir.Kt «hll -AIKI lllβRAH PRl-fTOWT USER PROGRAM LISTING V3.0 RUES o-c.o* Ur H-w.a-.i FISE 0071 ion •407 -11-- -I II- 10000 232 014 333 I 1104 -11- -1 I- "(RSTI-I I 334 252 F33 ! 001 1147 ■ l/l- • 11- -(KTR31! 250 F31 ! 1114 -1 I- -(KTIl I! Fll ! 004 ¥ -(OOUTl)i I Ir tttr h rfici »it MKi llASftM PtlRTOUT USER PROGRAM LISTING V3.0 im B-C.Oβ ΛK/SR-20,S«-21 mi oo3o I FM I 544 -(NUT ).' 1147 232 1134 w * . />< 234 1141 --J l" FM I 571 <Mιπ ) • ! f i l ter httrfict Unit AIKI I1ASR- - PI TMΠ USER PROGRAM LISTING V3.0 ttlES K,K ift/SR-20,SR-21 mi ooii FM 572 -(HUT ) ! 237 FM 572 F71 10001 • ( ♦ I Fll I 404 • (HUTU I ! FSO ! 10015 -(KTI )! FI5 ! -( III )! I F43 I 007 "(MUTJJ! ! 357 I --(SET)-! ! 337 425 i 1002.1 1211 -11- — (TMI-S frrtf I fi«& rlMtir Mir Ki frit kSKl IIAOUU. PI1IT0UT USER PROGRAM LISTING V3.0 ERIE! Ott.O-C PUIS/SI-20.SI-21 PAEf 003? I 1*23 FSO I 10000 J2I7 —I I- •(KTR )l 333 354 I FM I 004 -1 I- -J/1" .- -IMUT )! I ! FI2 ! -(KCO I! FM ! •23 -(NUT )t 230 1217 -I I- 231 1230 --1 I- 232 FM 434 1233 -π- -IWilT )! 233 FM 434 1234 -1 1- -(NUT ).' I 234 FM 440 1231 4« -1 1- -(WUT 233 FM 442 1242 -1 1- -(BOUT Prlnttr tir.Kl O t L-ttKI IIASRAR PIIITOUT USER PROGRAM LISTING V3.0 SEIIES C*-,-*- PIUS/SR-20.SR-21 PAEE 0033 A I I FM 444 1213 -(NUT I FM 444 1241 -(NUT ) I FM 470 1271 -IMUT I " l ! FM 472 1274 -(NUT } FM 474 1277 -(NUT ) FM 474 1200 -(NUT ) FM 300 1213 -(NUT ) FM 302 1204 -(NUT ) 244 FM 304 1211 -it- -(NUT I ! 247 FM 304 I 347 F31 447 F71 10001 ■ I 1 F4I -dOUTl) 'riattr iittrfut feit JΛta. IIA-S I ptinouT USER PROGRAM L I ST I NG V3 . 0 SEIIES O-COK PIUS/SR-20.SX-21 P»-f 0033 I I F41 I 312 4- (MUTl) I I 337 F31 I 313 1337 ■ !/["♦- (Kill ) I 1 I I Fll I I H 4- -(SFTI )! 773 123 1342 • 1 l- • ( 1- I 337 m i I 01 1344 •1/1--4- --(SFTI )! I Fll ! 513 -(HUTU! 337 F51 ! 514 13*1 -(KTIl)! ■ Fll ! t 01 -(SFTI )! I 775 124 i 1371 •1 ι- — ( )-! I I Fll i t 01 ♦- (SFTI 1! I 775 123 ! 13*i -1 l- ( 1-1 337 FIO 2 I N 13N ~]/t- (SFTI II I Fll I 515 (NUTD! • tir U rftct Oκit ilKI IIISRAK PtllTOUT USER PROGRAM LISTING V3.0 :IIES 0Λ.0* ΛUS/SA-20,SI-21 mi o!s •477 F50 ! 520 1314 -11- ■ (KTI )! 10003 510 522 512 524 514 •427 14M --l/l- < ?1 10004 237 — 1 l- /T MΛirr-r≠r,*Λ ~- 1. Slo*.9- ft-*----*- 00 '8' Beverace Ti-ner Initiate W *w* •» • •* B 02 * L * 03 'XL' 04 'S' Ioβ Ti-t-βr Initiate 05 'M * " 06 'L * " 07 'XL * " fry* 1. Slot 3. Tnrat = ane veroion 2 \Wk 1 . Slot 5. Output 80 * 8' Air Solenoid 81 'M * - 32 'L * * 33 'XL * - 34 Conveyor Puah Air Soleooid 35 Conveyor Rotate Air Solenoid 36 Agitation Relay 37 Rack 2. Slot 1. .Laaxt 40 '8' Stack Switch - 41 * M * 42 'L' 43 'XL * " 44 Conveyor Front Switch 45 " Back Switch 46 " UP Switch 47 140 Cup Eye , 1 1 Conveyor Bye 142 143 Drink Vend SUnal 144 Bin T'Stat 145 Air PS Switch 14600a PR 147 Rack 2. -Slot 2. Output 50 Display 1, Segaent 1 61 2 52 3 63 4 54 5 55 6 56 7 57 EP 100 Syrup Sold-Out 0 101 " " " 1 102 " " " 2 103 " " " 3 104 " " " 4 105 " " " 5 106 " " " 6 107 " " " 7 BelAja 340 New Vend 342 No loe Vend 343 Run Mode 344 Buffer Not Sa-pty 345 'No Ice' Key 346 Audible Alan 347 Bufer full 350 Jaa 351 Flash 352 Key Press 353 Calibration Mode 3546 Sec. Bevg. Latch 355 Conveyor Move Latch 356 Beverage latch 357 Purge Latch 361 362 363 364 365 366 367 600 Cup Drop Tiβer 634 'S' Flavor 4 Cα-nter 601 Ice Vend Tl-aer 635 " 5 602 Drink Tia-er 636 " 6 603 Conveyor Katchdog Ti-oer 637 7 604 Agitation Tix-er 640 'H' Flavor 0 Counter 605 Flaah Oh 641 - 1 606 Flaah Off 642 - 2 607 Sequential Flaβher 643 " 3 " 610 " Repeat Cycle Off 644 - 4 611 " Repeat Cycle On 645 " 5 612 Cup Katchdog Tiaer 646 " 6 613 Conveyor Delay Tl-ner 647 7 614 Drink Pour Counter 650 'L * Flavor 0 Counter 615 Key Preββ Tlaer 651 " 1 616 No Ice Tiae Out 652 " 2 6176 Second Shot Tiner 653 - 3 620 Casual Draw Tiaar 654 " 4 621 * S' Portion Tiβer 655 - 5 622 * M * 656 " 8 " 623 * L * 657 " 7 624 * XL * " 660 'XL * Flavor 0 Canter 625 Purge Off Tiner 661 " 1 626 Sequenoer Tiner 662 2 627 Serial Bit Counter 663 " 3 630 'S' Flavor 0 Counter 664 - 4 831 " 1 " 665 " δ - 632 " 2 " 666 ** 6 " 633 " 3 667 " 7 670 * 8 * Cup Countdown 671 'M * " 672 * L * " 673 'XL * " 674* 675* 675* 676* 677* **« * $ *ϊ:

Claims: What is claimed is: 1. An automatic beverage dispenser comprising: (a) cup conveyor means for advancing cups along a plurality of cup stations including a cup drop station, an ice drop station, a beverage dispense station, and a plurality of separate, spaced-apart, cup pick-up stations; (b) a multiflavor valve positioned above said conveyor at said beverage dispense station for dispensing any one of a number of different selected beverages into a cup of the selected size dropped at said beverage dispense station; (c) a plurality of separate cup supply tubes for holding a mix of different cup sizes; (d) cup sensor means associated with each of said supply tubes for sensing when a particular supply tube is deplenished; (e) means for dropping the selected cup size at said beverage dispense station; and (f) said cup dropping means including means for sequentially searching said supply tubes to locate one that both contains the selected cup size and that is not empty. 2. The dispenser as recited in claim 1 wherein said cup dropping means includes means for stopping said sequential searching if no such supply tube is found. 3. The dispenser as recited in claim 2 including means for shifting to the next cup position after a cup of the desired size has been dropped. 4. The dispenser as recited in claim 3 wherein said cup dropping means includes means for determining if a particular cup supply tube is out of cups. 5. The dispenser as recited in claim 4 wherein said cup dropping means includes means for throwing the vend away if no cup supply tube is found having a supply of cups of the selected size. 6. A method for operating an automatic beverage dispenser comprising the steps of: (a) dispensing any one of a number of different selected beverages from a multiflavor valve into a cup; (b) automatically advancing said cup by a conveyor along a plurality of cup stations including a cup drop station, an ice drop station, a beverage dispense station, and a plurality of separate, spaced-apart, cup pick-up stations until said cup is removed by an operator; (c) proving a plurality of separate cup supply tubes for holding a mix of different cup sizes; (d) sensing when each of said supply tubes is deplenished; and (e) dropping a cup of the selected size at said beverage dispense station, said dropping step including the step of sequentially searching said supply tubes to locate one that both contains the selected cup size and that is not empty.

Inventors: GROOVER PHILLIP B, MILLER BENJAMEN D, WILEY RONALD L, GROOVER, PHILLIP, B., MILLER, BENJAMEN, D., WILEY, RONALD, L.
Applicants: COCA COLA CO, THE COCA-COLA COMPANY
Application year: 1991
Main classification: B67D1
IPC codes: B67D1, G07F13