Filler assembly and method for filling pouches

Abstract

A filler assembly includes a bag preheating zone, a bag sterilization zone, and a bag flushing zone. The pre-heat zone includes a pre-heat nozzle assembly having an inlet and an outlet, the outlet engageable with the bag assembly, and a pre-heat vacuum nozzle assembly having an inlet engageable with the bag assembly and an outlet attachable to a vacuum. The bag sterilization zone includes a sterilization nozzle assembly having an inlet and an outlet, the outlet engageable with the bag assembly, and a sterilization vacuum nozzle assembly having an inlet engageable with the bag assembly and an outlet attachable to a vacuum. The bag flushing zone includes a bag flushing nozzle assembly having an inlet and an outlet, the outlet engageable with the bag assembly, and a bag flushing vacuum nozzle assembly having an inlet engageable with the bag assembly and an outlet attachable to a vacuum.

Description

[0001] Cross - reference to related applications

[0002] N / A Technical field

[0003] The present disclosure generally relates to fillers, and more particularly, to filler assemblies configured to preferably fill bag assemblies with a flowable material. It is desirable that the filler assembly fill the bag assembly in a sterile environment within the filler assembly. Methods of filling bags, as well as mechanisms and methods for guiding a bag assembly through a filler assembly, and nozzle assembly configurations are disclosed. Background art

[0004] Flexible packaging and the filling of flexible packaging are known in the art. Such flexible packaging typically includes flexible bags or sachets filled through a rigid spout. Increasingly, the use of bags filled with a flowable material has become common.

[0005] Such bags are typically filled with a flowable material in a filler assembly. There is an increasing desire to fill in a sterile environment and to minimize the use of preservatives and chemicals within the flowable material. Such filling can be hot filling or cold filling. There has been a continuing need to improve the filling processes and equipment for filling packages and sterile packages and other types of packages using bag assemblies.

[0006] Among other problems, such fillers typically include a sterilization step. It is desirable to improve the removal of fluids (liquids, vapors, and / or gases) used during the sterilization step in order to minimize contamination of the flowable material to be filled in the bag assembly. Additionally, it is desirable to improve the circulation of different fluids associated with the preparation of the bag assembly for filling in order to maximize their operation within the bag assembly. Further, it is desirable to improve the handling and / or movement of the bag assembly within the filler assembly. Summary of the invention

[0007] The present disclosure in one aspect relates to a filler assembly that includes a bag preheating zone, a bag sterilization zone, and a bag rinsing zone. The bag preheating zone includes at least one preheating nozzle assembly having an inlet and an outlet, where the outlet is engageable with a bag assembly, and at least one preheating vacuum nozzle assembly having an inlet engageable with the bag assembly and an outlet attachable to a vacuum. The bag sterilization zone is located after the bag preheating zone and includes at least one sterilization nozzle assembly having an inlet and an outlet, where the outlet is engageable with the bag assembly, and at least one sterilization vacuum nozzle assembly having an inlet engageable with the bag assembly and an outlet attachable to a vacuum. The bag rinsing zone is positioned after the bag sterilization zone and includes at least one bag rinsing nozzle assembly and at least one bag rinsing vacuum nozzle assembly, the bag rinsing nozzle assembly having an inlet and an outlet where the outlet is engageable with the bag assembly, the bag rinsing vacuum nozzle assembly having an inlet engageable with the bag assembly and an outlet attachable to a vacuum. The bag assembly is configured to sequentially traverse from the bag preheating zone to the bag sterilization zone and then to the bag rinsing zone. A vacuum is drawn on the bag assembly in the preheating zone with the preheating vacuum nozzle before attaching the bag assembly to at least one sterilization nozzle assembly. Additionally, a vacuum is drawn on the bag assembly in the bag sterilization zone with the sterilization vacuum nozzle before attaching the bag assembly to at least one bag rinsing nozzle. Additionally, a vacuum is drawn through the at least one bag rinsing vacuum nozzle.

[0008] In some configurations, the at least one preheating nozzle assembly includes at least four preheating nozzle assemblies positioned in sequence.

[0009] In some such configurations, the at least one sterilization nozzle assembly includes at least four sterilization nozzle assemblies positioned in sequence.

[0010] In some configurations, the at least one rinsing nozzle assembly includes at least four rinsing nozzle assemblies positioned in sequence.

[0011] In some configurations, the at least one preheating nozzle assembly includes at least eight preheating nozzle assemblies positioned in sequence, where the bag assembly is processed by every other one of the at least eight preheating nozzle assemblies. Similarly, the at least one preheating vacuum nozzle assembly includes at least two preheating vacuum nozzle assemblies, and the bag assembly is processed by every other one of the at least two preheating vacuum nozzle assemblies.

[0012] In some such configurations, the at least one sterilization nozzle assembly includes at least eight sterilization nozzle assemblies positioned in sequence, where the bag assembly is processed by every other one of the at least eight sterilization nozzle assemblies. Similarly, the at least one sterilization vacuum nozzle assembly includes at least two sterilization vacuum nozzle assemblies, and the bag assembly is processed by every other one of the at least two sterilization vacuum nozzle assemblies.

[0013] In some configurations, the at least one rinse nozzle assembly includes at least eight rinse nozzle assemblies positioned in sequence, where the bag assembly is processed by every other one of the at least eight rinse nozzle assemblies. Similarly, the at least one rinse vacuum nozzle assembly includes at least two rinse vacuum nozzle assemblies, and the bag assembly is processed by every other one of the at least two rinse vacuum nozzle assemblies.

[0014] In some configurations, the filler assembly further includes a bag filling zone positioned after the bag rinsing zone. The bag filling zone includes at least two bag filling valves.

[0015] In some configurations, the filler assembly further includes a bag capping zone positioned after the bag filling zone. The bag capping zone has a cap twisting assembly having at least two cap engaging teeth, each cap engaging tooth being coupled to a rotary actuator.

[0016] In some configurations, the filler assembly also includes a bag filling zone positioned sequentially after the bag rinsing zone, and a bag capping zone positioned sequentially after the bag filling zone.

[0017] In some such configurations, the bag moving mechanism extends from the bag preheating zone to the bag sterilization zone, the bag rinsing zone, the bag filling zone, and the bag capping zone. The bag moving mechanism includes a first region and a second region. The first region includes a pair of opposing helical screws, each helical screw having a helical slot, where the helical slots of the pair of helical screws correspond to each other proximate a lower channel extending therebelow and therebetween. The second region includes a first linear movement assembly, a second linear movement assembly, and a linear lower channel positioned between the first linear movement assembly and the second linear movement assembly and including an extension of the lower channel at its second end. Each linear movement assembly includes a bag engaging member having an inner edge with a receiving slot structurally configured to engage a nozzle assembly positioned within the linear lower channel. Each of the bag engaging members is configured to move laterally toward and away from the linear lower channel and longitudinally toward and away from the first end of the linear lower channel.

[0018] In some configurations, the first region of the bag moving mechanism extends across the bag preheating zone, the bag sterilization zone, the bag rinsing zone, and the bag filling zone. Additionally, the second region of the bag moving mechanism extends across the bag capping zone.

[0019] In some configurations, the at least one preheating nozzle assembly includes a nozzle engagement portion near the outlet and a circumferential sealing rim extending around its outer surface, the circumferential sealing rim being configured structurally to sealingly engage the nozzle of the bag assembly. At least one transverse slot traverses the circumferential sealing rim to allow fluid to pass over the circumferential sealing rim when the circumferential sealing rim engages the nozzle of the bag assembly.

[0020] In some configurations, the at least one sterilizing nozzle assembly includes a nozzle engagement portion near the outlet and a circumferential sealing rim extending around its outer surface, the circumferential sealing rim being configured structurally to sealingly engage the nozzle of the bag assembly. At least one transverse slot traverses the circumferential sealing rim to allow fluid to pass over the circumferential sealing rim when the circumferential sealing rim engages the nozzle of the bag assembly.

[0021] In some configurations, the at least one rinsing nozzle assembly includes a nozzle engagement portion near the outlet and a circumferential sealing rim extending around its outer surface, the circumferential sealing rim being configured structurally to sealingly engage the nozzle of the bag assembly. At least one transverse slot traverses the circumferential sealing rim to allow fluid to pass over the circumferential sealing rim when the circumferential sealing rim engages the nozzle of the bag assembly.

[0022] In another aspect of the present disclosure, the present disclosure relates to a bag moving mechanism for a filler assembly. The bag moving mechanism includes a first region and a second region. The first region includes a pair of opposing helical screws, each helical screw having a helical slot, wherein the helical slots of the pair of helical screws correspond to each other near a lower channel extending therebelow and therebetween. The second region includes a first linear movement assembly, a second linear movement assembly, and a linear lower channel positioned between the first linear movement assembly and the second linear movement assembly and including an extension of the lower channel at its second end. Each linear movement assembly includes a bag engagement member having an inner edge with a receiving slot configured structurally to engage a nozzle assembly positioned within the linear lower channel. Each of the bag engagement members is configured to move laterally toward and away from the linear lower channel and longitudinally toward and away from a first end of the linear lower channel.

[0023] In another aspect of the present disclosure, the present disclosure relates to a nozzle assembly that is used with a filler assembly to provide one of preheated fluid, sterilized fluid, and flushing fluid. The nozzle assembly includes a first end, a second end spaced apart from the first end, a nozzle inlet, and a spout engagement portion. The nozzle inlet is near the first end. The spout engagement portion is near the second end and terminates at an outlet. The spout engagement portion also includes an outer surface, and a circumferential seal edge extends around the outer surface and is configured structurally to sealingly engage the spout of the bag assembly. At least one lateral slot crosses the circumferential seal edge to allow fluid to cross the circumferential seal edge when the circumferential seal edge engages the spout of the bag assembly.

[0024] In yet another aspect of the present disclosure, the present disclosure relates to a method of using a filler assembly, the method including the steps of: guiding a bag assembly into a bag preheating zone; preheating the bag assembly by guiding preheated fluid into the bag assembly via a preheating nozzle assembly; applying a vacuum to the bag assembly after preheating with the preheating vacuum nozzle assembly; sterilizing the bag assembly by guiding sterilized fluid into the bag assembly via a sterilizing nozzle assembly; applying a vacuum to the bag assembly after sterilizing with the sterilizing vacuum nozzle assembly; flushing the bag assembly by guiding flushing fluid into the bag assembly via a flushing nozzle assembly; and applying a vacuum to the bag assembly after flushing with the flushing vacuum nozzle assembly.

[0025] In some configurations, the method further includes the steps of: allowing the preheated fluid to exit the bag assembly through the outlet of the bag assembly during the preheating step; allowing the sterilized fluid to exit the bag assembly through the outlet of the bag assembly during the sterilizing step; and allowing the flushing fluid to exit the bag assembly through the outlet of the bag assembly during the flushing step.

[0026] In some configurations, the method further includes the step of: filling the bag assembly with a flowable material after the step of applying a vacuum to the bag assembly after flushing with the flushing vacuum nozzle assembly.

[0027] In some configurations, the method further includes the steps of: sterilizing a lid; and applying the lid to the bag assembly after the step of filling the bag assembly with a flowable material. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present disclosure will now be described with reference to the drawings, in which:

[0029] In the drawings Figure 1 is a perspective view of the filler assembly of the present disclosure;

[0030] In the drawings Figure 2 is a side view of the filler assembly of the present disclosure;

[0031] In the drawings Figure 3 is a partial perspective view of the filler assembly with a portion of the frame removed;

[0032] In the accompanying drawings Figure 4 is a partial side view of a filler assembly with the frame removed;

[0033] In the accompanying drawings Figure 5 is a side view of a bag preheating zone, a part of the bag moving mechanism, and a plurality of bag assemblies;

[0034] In the accompanying drawings Figure 6 is a perspective view of a part of the bag preheating zone, showing a plurality of preheating nozzle assemblies;

[0035] In the accompanying drawings Figure 7 is a perspective view of a part of the bag preheating zone, showing a plurality of preheating vacuum nozzle assemblies;

[0036] In the accompanying drawings Figure 8 is a side view of a bag sterilization zone, a part of the bag moving mechanism, and a plurality of bag assemblies;

[0037] In the accompanying drawings Figure 9 is a perspective view of a part of the bag sterilization zone, showing a plurality of sterilization nozzle assemblies;

[0038] In the accompanying drawings Figure 10 is a perspective view of a part of the bag sterilization zone, showing a plurality of sterilization vacuum nozzle assemblies;

[0039] In the accompanying drawings Figure 11 is a side view of a bag rinsing zone together with a part of the bag moving mechanism and a plurality of bag assemblies;

[0040] In the accompanying drawings Figure 12 is a perspective view of a part of the bag rinsing zone, showing a plurality of rinsing nozzle assemblies;

[0041] In the accompanying drawings Figure 13 is a perspective view of a part of the bag rinsing zone, showing a plurality of rinsing vacuum nozzle assemblies;

[0042] In the accompanying drawings Figure 14 is a side view of a bag filling zone and a bag capping zone, showing a part of the bag moving mechanism and a plurality of bag assemblies;

[0043] In the accompanying drawings Figure 15 is a top plan view of the bag moving mechanism of the filler assembly of the present disclosure;

[0044] In the accompanying drawings Figure 16 is a partial top plan view of the bag moving mechanism, showing a part of the area including the spiral screw and the lower channel, where the nozzles are positioned in the channel and correspond to the spiral slots of the spiral screw;

[0045] In the accompanying drawings Figure 17A cross-sectional view of a part of the bag moving mechanism, showing the area including the first linear moving component, the second linear moving component, and the linear lower channel, where near the second ends of the first and second screw rods, the engagement of the bag engaging member of the second linear moving component and the positioning of the guiding channel of the nozzle within the linear lower channel are shown;

[0046] In the accompanying drawings Figure 18 is a perspective view of the area of the bag moving mechanism including the first and second linear moving components, without the linear lower channel, showing the engagement between the receiving slot of the bag engaging member of the second linear moving component and the corresponding bag component;

[0047] In the accompanying drawings Figure 19 is a perspective view of the configuration of a bag component adapted to be filled by the filler assembly of the present disclosure, shown herein without a lid; and

[0048] In the accompanying drawings Figure 20 is adapted to cover Figure 19 a perspective view of the configuration of the lid of the bag component. Detailed Description

[0049] Although the present disclosure admits many different forms of embodiments, specific embodiments (one or more) are shown in the accompanying drawings and described in detail herein. It should be understood that the present disclosure is considered as an example and is not intended to be limited to the (one or more) embodiments shown.

[0050] It should be understood that the same or similar elements and / or components mentioned herein may be identified by the same reference numerals throughout the accompanying drawings. In addition, it should be understood that the drawings are only schematic representations of the present invention, and for the purpose of clear illustration, some components may have been distorted from the actual scale.

[0051] Now referring to the accompanying drawings, and particularly to Figures 1 to 4 , the filler assembly according to the present disclosure is generally shown at 10. Although the filler assembly is applicable to other types of containers and is not limited to any specific type of container, it can be used to fill bag components, such as bag component 300, with various different flowable materials. Among other flowable materials, the flowable material may include baby and toddler food, humus, pudding, dairy beverages, nutritional and sports drinks, etc.

[0052] Bag component 300 is in Figure 19 and 20Shown in [the figure] as including a bag 302, a spout 304, and a cap 320. The spout 304 is coupled to the bag 302 and includes an upper portion 306, a lower portion 310, and a guiding channel 308 therebetween. The lower portion 310 is fluid-sealingly joined to the bag. The cap 320 is configured to threadedly engage the upper portion around corresponding threads. The guiding channel is configured to cooperate with a lower channel 204 of the bag moving mechanism 23 to facilitate movement of the bag assembly through the filler assembly.

[0053] The filler assembly 10 is shown as including a frame 12 that defines a feed section and an outlet where empty bags are first introduced into the filler assembly and filled bags exit the filler assembly. Extending from the frame are a plurality of different zones including a bag feed zone 20, a bag preheating zone 22, a bag sterilization zone 24, a bag rinsing zone 26, a bag filling zone 28, and a bag capping zone 29. A bag moving mechanism 23 guides the bags sequentially through the different zones of the filler assembly.

[0054] Additionally referring to Figure 15 , the bag feed zone 20 is configured to sequentially guide the bags into a first screw 200 and a second screw 202 of the bag moving mechanism 23. The bag feed zone may obtain bags from a bag holding track filled with bags. Such tracks may be sequentially and releasably attached to the bag feed zone 20 for sequential feeding into the bag moving mechanism 23.

[0055] Now referring to Figures 5 to 7 , the bag preheating zone 22 includes a plurality of preheating nozzle assemblies such as preheating nozzle assembly 30, a preheating nozzle mounting frame 32, a preheating actuator 34, a plurality of preheating vacuum nozzle assemblies such as preheating vacuum nozzle assembly 36, a preheating vacuum nozzle frame 38, and a preheating vacuum actuator 39. In the shown configuration, there are a total of eight preheating nozzle assemblies 30, four in each of two groups, and two preheating vacuum nozzle assemblies 36 in a single group.

[0056] Each preheating nozzle assembly includes a first end 40 and a second end 42. A nozzle inlet 44 is positioned adjacent the first end 40. Adjacent the second end is a nozzle engagement portion 46. The nozzle engagement portion 46 includes an outer surface 48, a circumferential seal edge 50, and a transverse slot 52. The nozzle engagement portion 46 terminates at an outlet 54. The nozzle engagement portion 46 is sized such that the circumferential seal edge 50 generally corresponds to and sealingly engages an inner surface of the nozzle 304 of the bag assembly. As will be explained herein, the transverse slot 52 provides a path for fluid to escape from within the bag assembly. By allowing fluid to escape from the bag assembly, the fluid turnover within the bag assembly is increased, which increases the efficacy of the fluid and its operation within the bag assembly (this increase in efficacy aids in preheating the fluid and, relative to other zones below, aids in sterilizing the fluid and flushing the fluid). Although four transverse slots are shown, more or fewer slots may be provided across the circumferential seal edge (all slots may have the same or different dimensions). It should be understood that each of the eight preheating nozzle assemblies is substantially identical and is positioned sequentially at a predetermined interval within the bag preheating zone.

[0057] In the illustrated configuration, the preheating nozzle mounting frame 32 is coupled to four preheating nozzle assemblies, where a biasing member 56 biases the preheating nozzle assemblies away from the mounting frame. In the illustrated configuration, there are two preheating nozzle mounting frames, each preheating nozzle mounting frame being coupled to four preheating nozzle assemblies.

[0058] The preheating actuator 34 is coupled at one end to the frame and at the other end to the preheating nozzle mounting frame 32. It will be understood that two preheating actuators are provided, one for each preheating nozzle mounting frame 32. The preheating actuator 34 is configured to guide the preheating nozzle mounting frame between an upper position and a nozzle engagement position. In the upper position, the nozzle engagement portion 46 of the preheating nozzle assembly is spaced apart from the bag assembly. In the nozzle engagement position, the nozzle engagement portion 46 is positioned to engage the nozzle assembly.

[0059] Each preheating vacuum nozzle assembly 36 is shown as including a first end 62 and a second end 64. A nozzle outlet 66 is positioned adjacent the first end 40. Adjacent the second end is a nozzle engagement portion 68. The nozzle engagement portion 68 includes an outer surface 70 and a circumferential seal edge 72. The nozzle engagement portion 46 terminates at an inlet 74. It should be understood that in the illustrated configuration, two preheating vacuum nozzle assemblies are shown and the preheating vacuum nozzle assemblies are similar to the preheating nozzle assemblies 30, where the transverse slots are omitted from the preheating vacuum nozzle assemblies.

[0060] In the illustrated construction, the preheat vacuum nozzle frame 38 is attached to two preheat vacuum nozzle assemblies 36 by a biasing member that biases the preheat vacuum nozzle assemblies away from the preheat vacuum nozzle frame 38. The preheat vacuum actuator 39 has a first end coupled to the frame and a second end coupled to the preheat vacuum nozzle frame 38. Similar to the preheat actuator 34, the preheat vacuum actuator 39 also includes two positions, namely, an upper position spaced from the spout of the bag assembly, and a spout engagement position where the spout engagement portion of the preheat vacuum nozzle assembly engages the spout assembly.

[0061] It should be understood that variations can be envisioned where more or fewer numbers of preheat nozzle assemblies and preheat vacuum nozzle assemblies can be provided. In the illustrated configuration, and as will be described below, the filler assembly is configured to index two bags at a time. In this way, the first bag in a pair of bags will contact every other preheat nozzle assembly starting from the first one, and the second bag in the pair of bags will contact every other preheat nozzle assembly starting from the second one. Thus, for each bag, there are four separate contacts with the preheat nozzle assemblies, thereby defining four preheat nozzle treatments. Additionally, in the illustrated construction, there is a pair of preheat vacuum nozzle assemblies. Thus, the pair of bags undergoes a single preheat vacuum nozzle treatment.

[0062] It is further envisioned that each preheat nozzle assembly and each preheat vacuum nozzle assembly can be actuated by its own actuator. In other constructions, it is envisioned that pairs of preheat nozzle assemblies are actuated by a single actuator, or all eight preheat nozzle assemblies are actuated by a single actuator.

[0063] It will be further understood that the nozzle inlet 44 of each preheat nozzle assembly can be coupled to a source of heated sterilizing air that is heated to a desired temperature, such as between 120°C and 220°C, while other temperatures are also contemplated. It will also be understood that each nozzle outlet 66 of the preheat vacuum nozzle assembly 36 is coupled to a vacuum suction through which a vacuum can be drawn.

[0064] Now referring Figures 8 to 10 , the bag sterilization zone 24 is sequentially positioned within the filler assembly 10 after the bag preheat zone 22. The bag sterilization zone 24 includes a plurality of sterilization nozzle assemblies, such as the sterilization nozzle assembly 80, the sterilization nozzle mounting frame 82, the sterilization actuator 84, sterilization vacuum nozzle assemblies, such as the sterilization vacuum nozzle assembly 86, the sterilization vacuum nozzle frame 88, and the sterilization vacuum actuator 89. In the illustrated configuration, there are a total of eight sterilization nozzle assemblies 80, four in each of two groups, and two sterilization vacuum nozzle assemblies 86 in a single group.

[0065] The foregoing components of the bag sterilization zone 24 substantially match the configuration of the bag preheat zone 22, while the operation and purpose of the bag sterilization zone 24 are different from the operation and purpose of the bag preheat zone 22.

[0066] Each sterilization nozzle assembly includes a first end 90 and a second end 92. A nozzle inlet 94 is positioned adjacent the first end 90. Adjacent the second end 92 is a nozzle engagement portion 96. The nozzle engagement portion 96 includes an outer surface 98, a circumferential sealing rim 100, and a lateral slot 102. The nozzle engagement portion 96 terminates at an outlet 104. The nozzle engagement portion 96 is sized such that the circumferential sealing rim 100 generally corresponds to and sealingly engages the inner surface of the nozzle 304 of the bag assembly. As will be explained herein, the lateral slot 102 provides a path for fluid to escape from within the bag assembly. It should be understood that each of the eight sterilization nozzle assemblies is substantially identical and is positioned sequentially at a predetermined interval within the bag sterilization zone.

[0067] In the illustrated configuration, the sterilization nozzle mounting frame 82 is coupled to four sterilization nozzle assemblies, with biasing members 106 biasing the sterilization nozzle assemblies away from the mounting frame. In the illustrated configuration, there are two sterilization nozzle mounting frames, each sterilization nozzle mounting frame being coupled to four sterilization nozzle assemblies.

[0068] The sterilization actuator 84 is coupled at one end to the frame and at the other end to the sterilization nozzle mounting frame 82. It should be understood that two sterilization actuators are provided, one for each sterilization nozzle mounting frame 82. The sterilization actuator 84 is configured to guide the sterilization nozzle mounting frame between an upper position and a nozzle engagement position. In the upper position, the nozzle engagement portion 96 of the sterilization nozzle assembly is spaced from the bag assembly. In the nozzle engagement position, the nozzle engagement portion 96 is positioned to engage the nozzle assembly.

[0069] Each sterilization vacuum nozzle assembly 86 is shown as including a first end 112 and a second end 114. A nozzle inlet 116 is positioned adjacent the first end 112. Adjacent the second end is a nozzle engagement portion 118. The nozzle engagement portion 118 includes an outer surface 120 and a circumferential sealing rim 122. The nozzle engagement portion 118 terminates at an inlet 124. It should be understood that in the illustrated configuration, two sterilization vacuum nozzle assemblies are shown and the sterilization vacuum nozzle assemblies are similar to the sterilization nozzle assembly 80, wherein the lateral slot is omitted from the sterilization vacuum nozzle assemblies.

[0070] In the illustrated construction, the sterilization vacuum nozzle frame 88 is attached to two sterilization vacuum nozzle assemblies 86 by a biasing member that biases the sterilization vacuum nozzle assemblies away from the sterilization vacuum nozzle frame 88. The sterilization vacuum actuator 89 has a first end coupled to the frame and a second end coupled to the sterilization vacuum nozzle frame 88. Similar to the sterilization actuator 84, the sterilization vacuum actuator 89 also includes two positions, namely, an upper position spaced from the spout of the bag assembly, and a spout engagement position at which the spout engagement portion of the sterilization vacuum nozzle assembly engages the spout assembly.

[0071] Similar to the preheating zone, in the illustrated configuration, the first bag in a pair of bags will contact every other sterilization nozzle assembly starting from the first one, and the second bag in the pair will contact every other sterilization nozzle assembly starting from the second one. Thus, for each of the bags, there are four separate contacts with the sterilization nozzles, thereby defining four sterilization nozzle treatments. Additionally, in the illustrated configuration, there is a pair of sterilization vacuum nozzle assemblies. Thus, the pair of bags undergoes a single sterilization vacuum nozzle treatment.

[0072] Similar to the preheating zone, each sterilization nozzle assembly and each sterilization vacuum nozzle assembly can be actuated by a single actuator, or any combination of nozzle assemblies can be coupled such that a single actuator actuates multiple nozzle assemblies.

[0073] In the illustrated configuration, each of the nozzle inlets 94 in each of the sterilization nozzle assemblies can be coupled to a source of hydrogen peroxide vapor. Without limitation and for illustrative purposes only, the hydrogen peroxide concentration is greater than 30%, where the evaporation temperature is greater than 235°F and the hydrogen peroxide dosage is greater than 5 g / min. Of course, other concentrations, temperatures, and flow rates can be considered. It will also be understood that the nozzle outlet 126 of the sterilization vacuum nozzle assembly 86 is coupled to a vacuum suction through which evacuation can be carried out.

[0074] Reference Figures 11 to 13 , the bag rinsing zone 26 is sequentially positioned within the filler assembly 10 after the bag sterilization zone 24. The bag rinsing zone includes a plurality of rinsing nozzle assemblies 130, a rinsing nozzle mounting frame 132, a rinsing actuator 134, a rinsing vacuum nozzle assembly, such as the rinsing vacuum nozzle assembly 136, a rinsing vacuum nozzle frame 138, and a rinsing vacuum actuator 139. In the illustrated configuration, a total of eight rinsing nozzle assemblies 130 are positioned in two groups of four each, and two rinsing vacuum nozzle assemblies 136 are in a single group.

[0075] The foregoing components of the bag rinsing zone 26 substantially match the configuration of the bag sterilization zone 24 and the bag preheating zone 22, while the operation and purpose of the bag rinsing zone 26 are different from the operation and purpose of the bag sterilization zone 24 and the bag preheating zone 22.

[0076] Each flushing nozzle assembly includes a first end 140 and a second end 142. A nozzle inlet 144 is positioned adjacent to the first end 140. Adjacent to the second end 142 is a nozzle engagement portion 146. The nozzle engagement portion 146 includes an outer surface 149, a circumferential sealing edge 150, and a transverse slot 152. The nozzle engagement portion 146 terminates at an outlet 154. The nozzle engagement portion 146 is sized such that the circumferential sealing edge 150 generally corresponds to and sealingly engages the inner surface of the nozzle 304 of the bag assembly. As will be explained herein, the transverse slot 152 provides a path for fluid to escape from within the bag assembly. It should be understood that each of the eight flushing nozzle assemblies is substantially identical and is positioned sequentially at a predetermined interval within the bag flushing zone.

[0077] In the illustrated configuration, the flushing nozzle mounting frame 132 is coupled to four preheating nozzle assemblies, wherein a biasing member 156 biases the flushing nozzle assembly away from the mounting frame. In the illustrated configuration, there are two flushing nozzle mounting frames, each flushing nozzle mounting frame being coupled to four flushing nozzle assemblies.

[0078] The flushing actuator 134 is coupled at one end to the frame and at the other end to the flushing nozzle mounting frame 132. It should be understood that two flushing actuators are provided, one for each flushing nozzle mounting frame 132. The flushing actuator 134 is configured to guide the flushing nozzle mounting frame between an upper position and a nozzle engagement position. In the upper position, the nozzle engagement portion 146 of the flushing nozzle assembly is spaced apart from the bag assembly. In the nozzle engagement position, the nozzle engagement portion 146 is positioned to engage the nozzle assembly.

[0079] Each flushing vacuum nozzle assembly 136 is shown as including a first end 162 and a second end 164. A nozzle outlet 166 is positioned adjacent to the first end 162. Adjacent to the second end is a nozzle engagement portion 168. The nozzle engagement portion 168 includes an outer surface 172 and a circumferential sealing edge 170. The nozzle engagement portion 164 terminates at an inlet 174. It should be understood that in the illustrated configuration, two flushing vacuum nozzle assemblies are shown, and the flushing vacuum nozzle assembly is similar to the flushing nozzle assembly 130, wherein the transverse slot is omitted in the flushing vacuum nozzle assembly.

[0080] In the illustrated configuration, the flushing vacuum nozzle frame 138 is attached to two flushing vacuum nozzle assemblies 136 by a biasing member that biases the flushing vacuum nozzle assemblies away from the flushing vacuum nozzle frame 138. The flushing vacuum actuator 139 has a first end coupled to the frame and a second end coupled to the flushing vacuum nozzle frame 138. Similar to the flushing actuator 134, the flushing vacuum actuator 139 also includes two positions, namely, an upper position spaced apart from the spout of the bag assembly, and a spout engagement position where the spout engagement portion of the flushing vacuum nozzle assembly engages the spout assembly.

[0081] Similar to the preheating zone and the sterilization zone, in the illustrated configuration, the first bag of a pair of bags will contact every other flushing nozzle assembly starting from the first one, and the second bag of the pair of bags will contact every other flushing nozzle assembly starting from the second one. Thus, for each of the bags, there are four separate contacts with the flushing nozzles, thereby defining four flushing nozzle treatments. Additionally, in the illustrated configuration, there is a pair of flushing vacuum nozzle assemblies. Thus, the pair of bags undergoes a single flushing vacuum nozzle treatment.

[0082] Similar to the preheating zone, each flushing nozzle assembly and each flushing vacuum nozzle assembly can be actuated by a single actuator, or any combination of couplings of the nozzle assemblies can be employed to enable a single actuator to actuate multiple nozzle assemblies.

[0083] In the illustrated configuration, each of the nozzle inlets 144 of each flushing nozzle assembly can be coupled to a sterile air source that can be at a temperature between 120°C and 220°C. It can also be understood that the nozzle outlet 166 of the flushing vacuum nozzle assembly 136 is coupled to a vacuum suction through which vacuum can be drawn.

[0084] Reference Figure 14 , the bag filling zone 28 in the illustrated configuration includes a first filling valve 180 and a second filling valve 182. The first filling valve includes an inlet 184 and an outlet 186. The second filling valve includes an inlet 188 and an outlet 189. In the illustrated configuration, the two filling valves can be actuated simultaneously to fill two bags simultaneously. In the illustrated configuration, the filling valves can also include a vacuum outlet such that a limiting vacuum can be pulled on the bag assembly before filling. Additionally, the filling valves can have a nitrogen source such that during filling, nitrogen can be used to displace any sterile air that may be retained in the container as nitrogen has excellent properties with respect to the degradation of the flowable material filling the bag assembly.

[0085] Continuing reference Figure 14, the bag capping area 29 in the configuration shown includes a cap feed channel 190 and a cap twisting assembly 194. The cap feed channel 190 includes a gravity feed channel that is configured to correspond to the shape of the cap to guide the cap to the lower end 192. As will be explained, when the cap reaches the lower end, the cap is positioned such that the nozzle engages the cap and guides the cap onto and away from the nozzle of the cap feed channel.

[0086] The cap twisting assembly 194 includes a pair of cap engaging teeth 196, 197, each of which is rotatably mounted to a rotary actuator 198, 199 respectively. The cap engaging teeth include a plurality of protrusions that cooperate with recesses in the cap, so that as the cap engaging teeth rotate, the corresponding cap rotates therewith. Of course, the shape of the cap engaging teeth can be changed according to the configuration of the cap, and it should be understood that the cap engaging teeth are configured to releasably engage the cap and rotatably and releasably couple with the cap.

[0087] Now refer to Figures 15 to 18 , while referring to Figures 1 to 4 , as described above, the bag moving mechanism 23 guides the bag assembly through the filler assembly, particularly from the second end of the bag feed area, through the bag preheating area, the bag sterilization area, the bag rinsing area, the bag filling area, and the bag capping area. In the configuration shown, the bag moving mechanism 23 includes two different areas, one of which guides the bag assembly from the second end of the bag feed area through the bag filling area (i.e., until the bag is filled), and the other of which guides the bag assembly from the bag filling area through the bag capping area (which includes placing the cap onto the nozzle and securing the cap to the nozzle).

[0088] More specifically, the first area includes a pair of screw rods defining a first screw rod 200 and a second screw rod 202, and a lower channel 204. The first screw rod includes a first end 210, a second end 212, and a helical slot 214. The second screw rod includes a first end 216, a second end 218, and a helical slot 220.

[0089] The first screw rod and the second screw rod rotate about parallel rotational axes that longitudinally extend through the filler assembly, and together with the lower channel define the travel direction of the bag assembly. The lower channel is disposed about a longitudinal axis parallel to the rotational axis of each of the first screw rod and the second screw rod, and is generally below and intermediate the two rotational axes. The channel is sized to slidably receive the bag assembly, and more specifically, such that the guide channel 308 can engage across the lower channel and slidably move along the lower channel from a first end to a second end. In the configuration shown, the configuration of the guide channel of the bag assembly relative to the lower channel precludes rotation of the bag assembly relative to the channel.

[0090] The helical windings cause them to correspond to each other such that the helical slots align with each other as the helical screw rotates. Portions of the helical slots may be enlarged to facilitate passage of any one of the zones where the nozzles engage corresponding spouts of the bag assembly and are thus blocked or interfered with by the helical screw.

[0091] The upper portion 306 of the spout of the bag assembly engages the helical slots 214, 220 such that rotation of the first and second helical screws in opposite directions controllably translates the bag along the lower channel between the first and second ends of the channel. It should be understood that the first and second helical screws may be driven by an electric motor which may be coupled to the helical screws via a gear train or the like.

[0092] The second region of the bag moving mechanism is positioned adjacent the second ends of the first and second helical screws. The second region includes a first linear moving assembly 206, a second linear moving assembly 208 and a linear lower channel 209 positioned on one side of the bag assembly. The linear lower channel 209 generally includes an extension of the lower channel 204 extending from the second end 224 of the lower channel 204 and generally includes dimensions similar to the lower channel 204.

[0093] The first linear moving assembly includes a bag engaging member 226, a lateral actuator 228 and a longitudinal moving member 229. The bag engaging member 226 includes a generally planar member having an inner edge with a plurality of receiving slots 230 spaced apart from each other by a distance (preferably, the distance generally corresponds to the distance between any two nozzles of adjacent zones). In the illustrated configuration, a total of eight receiving slots, such as receiving slot 230, are provided along the inner edge.

[0094] Generally, the lateral actuator 228 is configured to guide the bag engaging member 226 inwardly and outwardly towards and away from the linear lower channel 209 on its first side. The longitudinal moving member is configured to guide the bag engaging member longitudinally (i.e., parallel to the linear lower channel 209 towards the first or second end of the linear lower channel). In the illustrated configuration, the lateral actuator includes a pneumatic actuator. Also, the longitudinal moving member includes a linear actuator which includes a servo motor driving a toothed belt secured to the bag engaging member 226 in movement. Thus, the bag engaging member may move towards and away from the linear lower channel as well as along a path substantially parallel to the linear lower channel, or a combination of both movements.

[0095] Similarly, the second linear movement assembly includes a bag engaging member 232, a lateral actuator 234, and a longitudinal movement member 236. The bag engaging member 232 includes a generally planar member having an inner edge with a plurality of receiving slots 238 configured in a spaced-apart configuration (like the receiving slots 230). As with the receiving slots 230, a total of eight receiving slots 238 are presented along the inner edge of the bag engaging member.

[0096] Similarly, the lateral actuator 234 includes a pneumatic actuator that guides the bag engaging member toward and away from the linear lower channel 209. Also, the longitudinal movement member 236 includes a linear actuator that includes a servo motor driving a toothed belt secured to the bag engaging member 232 during movement. Thus, the bag engaging member can move both toward and away from the linear lower channel and also travel along a path generally parallel to the linear lower channel, or a combination of both movements.

[0097] The first linear movement assembly and the second linear movement assembly are movable independently of each other. That is, the bag engaging member 226 and the bag engaging member 232 can move independently of each other and engage corresponding bag assemblies positioned along the linear lower channel, either individually or jointly.

[0098] The operation will be described with respect to the travel of bag assemblies or a series of bag assemblies from the bag feed zone to the bag capping zone by way of a filler assembly. It should be understood that while a single production line (defined by the lower channel 204 and the linear lower channel 209, Figure 15 ) is shown, it is contemplated that the filler assembly can have a plurality of production lines positioned within the same frame in a side-by-side orientation. For example, two side-by-side production lines can be configured within the same frame, and it is equally contemplated that more than two production lines can be used. Additionally, it is contemplated that while bag assemblies travel through the filler assembly in pairs, other configurations (such as single bags and multiples of more than three bags) are possible.

[0099] More specifically, and with reference to Figures 1 to 4 , first, a plurality of bag assemblies are supplied to the bag feed zone 20. Such bag assemblies can be positioned on tracks or the like, as is known to those skilled in the art. Once provided, the bag assemblies are sequentially guided to the bag preheating zone 22. More particularly, and with reference to Figures 15 to 18, each bag is sequentially guided to the first end of the bag moving mechanism and positioned at the first end of the lower channel 204. At the same time, the first and second screw conveyors are positioned to receive the nozzles within their respective helical slots 214, 220. As the screw conveyors rotate about their respective axes of rotation, the bag assembly is pushed along the lower channel by the interaction between the helical slots and the nozzles of the bag assembly. Similarly, additional bag assemblies, one after another, are guided into the bag preheating zone 22.

[0100] Reference Figures 5 to 7 , within the bag preheating zone, the bags advance in pairs. Initially, the first two bag assemblies will encounter the first two preheating nozzle assemblies. Once the bags are properly positioned, each preheating actuator 34 actuates to guide the preheating nozzle assembly to the nozzle engagement position. Subsequently, the first two preheating nozzle assemblies engage the nozzles of the first two bag assemblies, where the circumferential sealing edges engage the inner surface in a substantially sealed manner. Once engaged, heated air is directed through the outlets of the preheating nozzle assemblies and into the bag assemblies. The bag assemblies expand as they are filled, and finally, the excess preheating air is directed out of the bag assemblies through the lateral slots in the nozzle engagement portion so as to pass over the circumferential sealing edges and leave the bag assemblies. This step continues for a predetermined period of time in order to increase the temperature of the bag assemblies.

[0101] Then, the preheating actuator 34 returns to the upper position, disengaging the preheating nozzle assembly from the bag assembly. Once disengaged, the bags move in pairs to the third and fourth preheating nozzle assemblies. Then the process is repeated, where heated air is directed through the outlets of the respective preheating nozzle assemblies into the bag assemblies, and the excess air is ejected from the bag assemblies through the lateral slots. After a predetermined period of time, the actuator returns the preheating nozzle assembly to the upper position, and the two bag assemblies move in pairs to the fifth and sixth preheating nozzle assemblies. The process is repeated, and then the two bag assemblies are moved in pairs to the seventh and eighth preheating nozzle assemblies, where the process is repeated again.

[0102] It should be understood that subsequent bag assemblies sequentially enter the filler assembly simultaneously and undergo the same process in the same order.

[0103] After the last preheating nozzle assembly, the paired bag assemblies are moved in pairs to the preheating vacuum nozzle assembly, where the preheating vacuum actuator 39 moves the preheating vacuum nozzle assembly to the nozzle engagement position. At this time, a vacuum is drawn through the preheating vacuum nozzle assembly, and air is drawn out of the bag assemblies.

[0104] Also reference Figures 8 to 10, the substantially collapsed bag assemblies are then moved in pairs to the bag sterilization zone, where a process very similar to the above is sequentially carried out by four pairs of sterilization nozzle assemblies 80. However, in the bag sterilization zone, instead of supplying heated air through each of four consecutive interactions with the sterile nozzle assemblies, the sterilization nozzle assemblies deliver vaporized hydrogen peroxide, and the excess hydrogen peroxide is directed out of the bag assemblies through lateral slots in the sterilization nozzle assemblies.

[0105] After four sterilization treatments, the bag assemblies are moved in pairs to the sterilization vacuum nozzle assemblies, and when the sterilization vacuum actuator is positioned at the nozzle engagement position, a vacuum is drawn to evacuate the vaporized hydrogen peroxide from within the bag assemblies. The substantially collapsed bag assemblies are guided to the bag rinsing zone by the cooperative rotation of the helical screws.

[0106] Also refer to Figures 11 to 13 , in the bag rinsing zone, and in a manner similar to the previous zones, the bag assemblies are moved in pairs through four pairs of rinsing nozzle assemblies. Each successive rinsing nozzle assembly rinses the corresponding one of the bag assemblies with sterile air to rinse the residual vaporized hydrogen peroxide from within the bag assemblies. Any excess sterile air is directed out of the bag assemblies through the lateral slots of the rinsing nozzle assemblies. The bag assemblies undergo the same process through each of the four pairs of rinsing nozzle assemblies. Finally, the bag assemblies are moved in pairs to the rinsing vacuum nozzle assemblies, where the rinsing vacuum nozzle actuator is guided to the nozzle engagement position, where the rinsing vacuum nozzle assembly engages the nozzles of the nozzle assemblies. A vacuum is drawn through the rinsing vacuum nozzle assemblies, and the sterile air directed into the bag assemblies is removed by drawing the vacuum.

[0107] Once the rinsing air is removed and the bag assemblies are in a substantially collapsed configuration, the bags are guided into the bag filling zone. It should be understood that the vacuum steps between each preheating zone and sterilization zone, between the sterilization zone and the rinsing zone, and between the rinsing zone and the filling zone minimize the mixing of the gases from each zone with the subsequent zone, and these fluids are removed to a greater extent by the vacuum. Additionally, at each zone, by removing the fluid from the previous zone, the efficacy of the fluid used in a particular zone can be increased, i.e., the fluid usage is not impaired by the fluid contamination from the previous zone.

[0108] Refer to Figure 14, in the bag filling area 28, a first filling valve is connected to the first of two bag assemblies, and a second filling valve is connected to the second of two bag assemblies. Vacuum can be drawn first to remove any residual sterilizing air that may remain after the bag rinsing area or any residual sterilizing air that may have returned after the rinsing vacuum nozzle assembly is disconnected from the bag assembly. Subsequently, the flowable material can be directed through the filling valve and into the bag assembly. Filling can be controlled by flow rate and time or by volume or other means to fill the bag assembly with a desired amount of flowable material. Once filled with the flowable material, nitrogen can be directed into the bag assembly to displace any air that may remain in the headspace.

[0109] Additionally refer to Figure 15 and Figure 17 , during filling, the bag assembly has reached the second end of the helical screw and is guided into the first end of the linear lower channel. At this time, one of the first linear movement assembly 206 and the second linear movement group 208 is actuated to inwardly guide at least one of the bag engaging members so as to capture the bag assembly (and ultimately the bag assembly) within one of the receiving slots of the bag engaging members. Once the bag is received, the corresponding linear movement assembly is indexed in the direction towards the second end of the linear lower channel to advance the bag. The linear movement assemblies can be configured to operate sequentially. For example, the first bag engaging member can engage the bag assembly and index the bag assembly towards the second end of the linear lower channel in one movement. At this time, the second bag engaging member can engage the bag assembly. Once engaged, the first bag engaging member can disengage from the bag assembly and index towards the first end of the linear lower channel. Simultaneously or approximately simultaneously, the second bag engaging member can index the bag assembly towards the second end of the linear lower channel. Next, the first bag engaging member can then be actuated to engage the bag assembly, and at this time, the second bag engaging member can disengage. The second bag engaging member can index back towards the first end of the linear lower channel while the first bag engaging member indexes the bag assembly towards the second end of the linear lower channel. When the bag assembly reaches the second end of the lower channel and is introduced into the linear lower channel, the process can be repeatedly repeated to continuously move the bag assembly to advance through the bag capping area 29. Thus, when the bag assembly is within the bag capping area, at least one of the bag engaging members of the first linear movement assembly and the second linear movement assembly is maintained in forced engagement, thereby substantially precluding undesired movement of the bag assembly within the bag capping area.

[0110] By transitioning from the first helical screw and the second helical screw to the linear movement assemblies, a larger access spout can be provided to facilitate placing the cap and tightening the cap onto the spout. This is achieved by using the linear movement assemblies and transferring the bag from the rotating helical screw to the bag engaging members, which can linearly guide the bag assembly along the linear lower channel.

[0111] Refer toFigure 14 When the bag assembly is indexed beyond the cap feed channel 190, the spout of each bag assembly sequentially reaches the lower end 192 of the cap feed channel. By gravity feed, the cap is positioned at the lower end 192 of the cap feed channel, and as the bag moves beyond the cap feed channel, the engagement of the spout with the lowermost cap in the cap feed channel at the lower end disengages from the cap feed channel and becomes positioned over the spout of the bag assembly. When the cap is removed from the cap feed channel by the bag assembly, another cap is gravity-fed to the lower end of the cap feed channel and is ready to be engaged by and engaged with a subsequent bag assembly. The cap is sterilized before reaching the lower end of the cap feed channel, where such sterilization can occur while the cap is in the cap feed channel or before being positioned in the cap feed channel.

[0112] Next, the bag assemblies with caps placed over the spouts are guided in pairs to the cap twisting assembly by the coordinated movement of at least one of the bag engaging members 226. Once properly positioned relative to the cap twisting assembly, the cap twisting assembly is actuated to guide the cap engaging bits 196, 197 to releasably engage the caps that have been positioned over the spouts of the bag assemblies. Next, the cap engaging teeth are rotated by the rotary actuators 198, 199 to mate the threads of the cap with the threads of the spout and fasten the cap to the spout. Once completed, the bags are again indexed forward (again in pairs) beyond the second end of the linear lower channel, and the bag assemblies then leave the filler assembly. In the illustrated configuration, the inclined chute is positioned at the second end of the linear lower channel to controllably guide the filled bag assemblies from the filler assembly to further processing.

[0113] It should be understood that the above description provides a description of the operation of the illustrated configuration. Also, numerous variations are envisioned, for example, while the bag assemblies are shown being processed in pairs, they can be processed individually or in quantities greater than two. Additionally, multiple production lines can extend parallel to each other within a single filler assembly. Further, while the timing of each step generally causes the bags to advance evenly in pairs, it is envisioned that some steps may take longer than others and there may be dwell times where some bag assemblies have been acted upon before the bags move within the filler assembly. Other variations are also envisioned.

[0114] It should also be understood that the upper ends of the bag assemblies can be maintained in a sterile environment throughout the filler assembly, where the sterile zone can be defined by each of the bag sterilization zone, the bag rinsing zone, the bag filling zone, and the bag capping zone. The sterile environment can be maintained by positive pressure of sterilized air and other means. Additionally, the caps of the bags can be sterilized before being guided into the bag capping zone.

[0115] The foregoing description merely explains and illustrates the present disclosure, and the present disclosure is not limited thereto, except as limited by the appended claims, since those skilled in the art having the present disclosure before them will be able to make modifications without departing from the scope of the present disclosure.

Claims

1. A filler assembly, comprising: - A bag preheating zone, which includes: - At least one preheating nozzle assembly having an inlet and an outlet, the outlet being engageable with a bag assembly; - At least one preheating vacuum nozzle assembly having an inlet engageable with a bag assembly and an outlet attachable to a vacuum; - A bag sterilization zone, the bag sterilization zone being positioned after the bag preheating zone and including: - At least one sterilization nozzle assembly having an inlet and an outlet, the outlet being engageable with a bag assembly; - At least one sterilization vacuum nozzle assembly having an inlet engageable with a bag assembly and an outlet attachable to a vacuum; - A bag rinsing zone, the bag rinsing zone being positioned after the bag sterilization zone and including: - At least one bag rinsing nozzle assembly having an inlet and an outlet, the outlet being engageable with a bag assembly; - At least one bag rinsing vacuum nozzle assembly having an inlet engageable with a bag assembly and an outlet attachable to a vacuum; - Wherein, the bag assembly is configured to sequentially traverse from the bag preheating zone to the bag sterilization zone and then to the bag rinsing zone; wherein, before attaching the bag assembly to the at least one sterilization nozzle assembly, the bag assembly is evacuated in the preheating zone with the preheating vacuum nozzle, and wherein, before attaching the bag assembly to the at least one bag rinsing nozzle, the bag assembly is evacuated in the bag sterilization zone with the sterilization vacuum nozzle; and evacuated through the at least one bag rinsing vacuum nozzle.

2. The filler according to claim 1, wherein, The at least one preheating nozzle assembly includes at least four preheating nozzle assemblies positioned in sequence.

3. The filler according to claim 2, wherein, The at least one sterilization nozzle assembly includes at least four sterilization nozzle assemblies positioned in sequence.

4. The filler according to claim 3, wherein, The at least one rinsing nozzle assembly includes at least four rinsing nozzle assemblies positioned in sequence.

5. The filler according to claim 1, wherein, The at least one preheating nozzle assembly includes at least eight preheating nozzle assemblies positioned in sequence, wherein the bag assembly is processed by every other one of the at least eight preheating nozzle assemblies, and the at least one preheating vacuum nozzle assembly includes at least two preheating vacuum nozzle assemblies, wherein the bag assembly is processed by every other one of the at least two preheating vacuum nozzle assemblies.

6. The filler according to claim 5, wherein, The at least one sterilization nozzle assembly includes at least eight sterilization nozzle assemblies positioned in sequence, wherein the bag assembly is processed by every other one of the at least eight sterilization nozzle assemblies, and the at least one sterilization vacuum nozzle assembly includes at least two sterilization vacuum nozzle assemblies, wherein the bag assembly is processed by every other one of the at least two sterilization vacuum nozzle assemblies.

7. The filler according to claim 6, wherein, The at least one flushing nozzle assembly includes at least eight flushing nozzle assemblies positioned in sequence, the bag assembly being processed by every other one of the at least eight flushing nozzle assemblies, and the at least one flushing vacuum nozzle assembly includes at least two flushing vacuum nozzle assemblies, the bag assembly being processed by every other one of the at least two flushing vacuum nozzle assemblies.

8. The filler according to claim 7, further comprising a bag filling zone positioned after the bag flushing zone, the bag filling zone including at least two bag filling valves.

9. The filler according to claim 8, further comprising a bag capping zone positioned after the bag filling zone, the bag capping zone having a cap twisting assembly, the cap twisting assembly having at least two cap engaging teeth, each cap engaging tooth being coupled to a rotary actuator.

10. The filler according to claim 1, further comprising a bag filling zone positioned in sequence after the bag flushing zone, and a bag capping zone positioned in sequence after the bag filling zone.

11. The filler according to claim 10, wherein, a bag moving mechanism extends from the bag preheating zone to the bag sterilizing zone, the bag flushing zone, the bag filling zone, and the bag capping zone, the bag moving mechanism including a first zone and a second zone, the first zone including a pair of opposing helical screws, each helical screw having a helical slot, wherein the helical slots of the pair of helical screws correspond to each other proximate a lower channel extending therebelow and therebetween, the second zone including a first linear movement assembly, a second linear movement assembly, and a linear lower channel, the linear lower channel being positioned between the first linear movement assembly and the second linear movement assembly and including an extension of the lower channel at its second end, each linear movement assembly including a bag engaging member having an inner edge with a receiving slot, the receiving slot being configured structurally to engage a spout assembly positioned within the linear lower channel, each of the bag engaging members being configured to move laterally toward and away from the linear lower channel, and longitudinally toward and away from the first end of the linear lower channel.

12. The filler according to claim 11, wherein, the first zone of the bag moving mechanism extends through the bag preheating zone, the bag sterilizing zone, the bag flushing zone, and the bag filling zone, and the second zone of the bag moving mechanism extends through the bag capping zone.

13. The filler according to claim 1, wherein, the at least one preheating nozzle assembly includes a spout engaging portion proximate the outlet, a circumferential sealing rim extending around its outer surface, and at least one lateral slot, the circumferential sealing rim being configured structurally to sealably engage a spout of the bag assembly, the at least one lateral slot traversing the circumferential sealing rim to permit fluid to cross the circumferential sealing rim when the circumferential sealing rim engages the spout of the bag assembly.

14. The filler according to claim 13, wherein, The at least one sterilization nozzle assembly includes a nozzle engagement portion adjacent the outlet, a circumferential sealing rim extending around its outer surface, and at least one lateral slot that traverses the circumferential sealing rim to permit fluid to cross the circumferential sealing rim when the circumferential sealing rim engages the nozzle of the bag assembly.

15. The filler according to claim 14, wherein, the at least one flushing nozzle assembly includes a nozzle engagement portion adjacent the outlet, a circumferential sealing rim extending around its outer surface, and at least one lateral slot that traverses the circumferential sealing rim to permit fluid to cross the circumferential sealing rim when the circumferential sealing rim engages the nozzle of the bag assembly.

16. A bag moving mechanism for a filler assembly, comprising: a first region including a pair of opposing helical screws, each helical screw having a helical slot, wherein the helical slots of the pair of helical screws correspond to each other adjacent a lower channel extending therebelow and therebetween; and a second region including a first linear movement assembly, a second linear movement assembly, and a linear lower channel positioned between the first linear movement assembly and the second linear movement assembly and including an extension of the lower channel at its second end, each linear movement assembly including a bag engagement member having an inner edge with a receiving slot configured to structurally engage the nozzle assembly positioned within the linear lower channel, each of the bag engagement members being configured to move laterally toward and away from the linear lower channel and longitudinally toward and away from the first end of the linear lower channel.

17. A nozzle assembly for use with a filler assembly to provide one of preheated fluid, sterilization fluid, and flushing fluid, the nozzle assembly comprising: - a first end and a second end spaced from the first end; - a nozzle inlet adjacent the first end; - a nozzle engagement portion adjacent the second end and terminating at an outlet, the nozzle engagement portion including: - an outer surface with a circumferential sealing edge extending around the outer surface and configured to structurally sealably engage the nozzle of the bag assembly; and at least one lateral slot that traverses the circumferential sealing edge to permit fluid to cross the circumferential sealing edge when the circumferential sealing edge engages the nozzle of the bag assembly.

18. A method of using a filler assembly, comprising the steps of: - guiding a bag assembly into a bag preheating zone; - preheating the bag assembly by guiding preheated fluid into the bag assembly via a preheating nozzle assembly; - applying a vacuum to the bag assembly after preheating with a preheating vacuum nozzle assembly; - sterilizing the bag assembly by guiding sterilization fluid into the bag assembly via a sterilization nozzle assembly; - Applying a vacuum to the bag assembly after sterilization with a sterilizing vacuum nozzle assembly; - Flushing the bag assembly by directing a flushing fluid to the bag assembly through a flushing nozzle assembly; and - Applying a vacuum to the bag assembly after flushing with a flushing vacuum nozzle assembly.

19. The method according to claim 18, further comprising the steps of: - Allowing the preheated fluid to leave the bag assembly through the outlet of the bag assembly during the preheating step; - Allowing the sterilizing fluid to leave the bag assembly through the outlet of the bag assembly during the sterilization step; and - Allowing the flushing fluid to leave the bag assembly through the outlet of the bag assembly during the flushing step.

20. The method according to claim 18, further comprising the steps of: - Filling the bag assembly with a flowable material after the step of applying a vacuum to the bag assembly after flushing with a flushing vacuum nozzle assembly.

21. The method according to claim 20, further comprising the steps of: - Sterilizing the lid; and - Applying the lid to the bag assembly after the step of filling the bag assembly with a flowable material.

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