Drum loading system

Abstract

Described is a system having a plurality of rotatable platforms including at least a first rotatable platform and a second rotatable platform. Each rotatable platform is rotatable around a respective rotational axis. A liquid dispenser includes a plurality of outlets. A respective outlet of the plurality of outlets is positioned above each rotatable platform of the plurality of rotatable platforms. Each outlet of the plurality of outlets is radially offset from the rotational axis of the respective rotatable platform along an axis that is perpendicular to the rotational axis. At least one valve selectively directs liquid flow to the plurality of outlets.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims the benefit of the filing date of U.S. Provisional Patent Application No. 63 / 477,241, filed Dec. 27, 2022, the entirety of which is hereby incorporated by reference herein.FIELD

[0002] This disclosure is directed to systems and methods for delivering liquid (e.g., polymer) into drums.BACKGROUND

[0003] When pumping liquid into multiple containers, once a container is full, flow of the liquid has to be ceased in order to begin filling another container without spilling any liquid. However, in various applications, ceasing flow of liquid can be undesirable or impracticable. Accordingly, a method of dispensing liquid into containers without ceasing flow and without spilling liquid between containers is desirable.

[0004] Conventionally, polymer or polymer mixtures for textile products are supplied in solid pellet form. Accordingly, the pellets can easily be stored and transported in conventional containers. However, when working with liquid (e.g., melted or uncured) polymer and polymer mixtures, conventional transportation methods for pelletized polymer cannot be used. Further, when working with a flow of fluid comprising polymer, such as melted polymer, as stated above, ceasing flow of the fluid can be impracticable. Accordingly, a system for handling liquids comprising polymer is desirable.SUMMARY

[0005] Disclosed herein is a system comprising a plurality of rotatable platforms, the plurality of rotatable platforms comprising at least a first rotatable platform and a second rotatable platform. Each rotatable platform of the plurality of rotatable platforms is rotatable around a respective rotational axis. The system further comprises a polymer dispenser comprising a plurality of outlets. A respective outlet of the plurality of outlets is positioned above each rotatable platform of the plurality of rotatable platforms. Each outlet of the plurality of outlets is radially offset from the rotational axis of the respective rotatable platform along an axis that is perpendicular to the rotational axis. At least one valve is configured to selectively direct polymer flow to the plurality of outlets.

[0006] Also disclosed is a method comprising the step of dispensing polymer from a first outlet into a first drum of a first pallet assembly. At least a portion of polymer flow is redirected from first outlet to a second outlet above a first drum of a second pallet assembly upon detecting a polymer level in the first drum of the first pallet at or above a first predetermined threshold.

[0007] Additional advantages of the disclosed systems and methods will be set forth in part in the description which follows, and in part will be understood from the description, or may be learned by practice of the disclosed systems and methods. The advantages of the disclosed systems and methods will be realized and attained by means of the elements and combinations particularly pointed out in the appended claims. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.BRIEF DESCRIPTION OF THE DRAWINGS

[0008] FIG. 1 is a side view of a system for delivering polymer into drums.

[0009] FIG. 2 is a top view of the system of FIG. 1.

[0010] FIG. 3 shows a sequence of rotational positions of each platform of the system of FIG. 1.

[0011] FIG. 4 shows a sequence of operation for using the system of FIG. 1.

[0012] FIG. 5 shows geometry of a pallet assembly of the system of FIG. 1.

[0013] FIG. 6 shows an operating environment comprising a computing device for use with the system of FIG. 1.DETAILED DESCRIPTION

[0014] The disclosed system and method may be understood more readily by reference to the following detailed description of particular embodiments and the examples included therein and to the Figures and their previous and following description.

[0015] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present disclosure which will be limited only by the appended claims.

[0016] It must be noted that as used herein and in the appended claims, the singular forms “a,”“an,” and “the” include plural references unless the context clearly dictates otherwise. Thus, for example, reference to “a valve” includes one or more of such valves, and so forth.

[0017] “Optional” or “optionally” means that the subsequently described event, circumstance, or material may or may not occur or be present, and that the description includes instances where the event, circumstance, or material occurs or is present and instances where it does not occur or is not present.

[0018] Ranges may be expressed herein as from “about” one particular value, and / or to “about” another particular value. When such a range is expressed, also specifically contemplated and considered disclosed is the range from the one particular value and / or to the other particular value unless the context specifically indicates otherwise. Similarly, when values are expressed as approximations by use of the antecedent “about,” it will be understood that the particular value forms another, specifically contemplated embodiment that should be considered disclosed unless the context specifically indicates otherwise. It will be further understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint unless the context specifically indicates otherwise. Finally, it should be understood that all of the individual values and sub-ranges of values contained within an explicitly disclosed range are also specifically contemplated and should be considered disclosed unless the context specifically indicates otherwise. The foregoing applies regardless of whether in particular cases some or all of these embodiments are explicitly disclosed.

[0019] Optionally, in some aspects, when values are approximated by use of the antecedents “about,”“substantially,” or “generally,” it is contemplated that values within up to 15%, up to 10%, up to 5%, or up to 1% (above or below) of the particularly stated value or characteristic can be included within the scope of those aspects.

[0020] Unless defined otherwise, all technical and scientific terms used herein have the same meanings as commonly understood by one of skill in the art to which the disclosed apparatus, system, and method belong. Although any apparatus, systems, and methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present apparatus, system, and method, the particularly useful methods, devices, systems, and materials are as described.

[0021] Throughout the description and claims of this specification, the word “comprise” and variations of the word, such as “comprising” and “comprises,” means “including but not limited to,” and is not intended to exclude, for example, other additives, components, integers or steps. In particular, in methods stated as comprising one or more steps or operations it is specifically contemplated that each step comprises what is listed (unless that step includes a limiting term such as “consisting of”), meaning that each step is not intended to exclude, for example, other additives, components, integers or steps that are not listed in the step.

[0022] It is to be understood that unless otherwise expressly stated, it is in no way intended that any method set forth herein be construed as requiring that its steps be performed in a specific order. Accordingly, where a method claim does not actually recite an order to be followed by its steps or it is not otherwise specifically stated in the claims or descriptions that the steps are to be limited to a specific order, it is in no way intended that an order be inferred, in any respect. This holds for any possible non-express basis for interpretation, including: matters of logic with respect to arrangement of steps or operational flow; plain meaning derived from grammatical organization or punctuation; and the number or type of aspects described in the specification. Thus, words denoting order, such as “first” or “next,” should be interpreted as optional aspects unless plain meaning or logic dictates otherwise.

[0023] As used herein, “full” can refer to a drum having a desired maximum amount of fluid (e.g., polymer mixture or other liquid) therein. The full drum may or may not have room for additional liquid therein.

[0024] As used herein, the term “liquid” can refer to an incompressible, or generally incompressible, material that is configured to flow. The liquid can be a liquid having any viscosity. In some aspects, the liquid can be a Newtonian liquid. In other aspects, the liquid can have non-Newtonian characteristics, yet can flow in accordance with the present disclosure.Exemplary System

[0025] Disclosed herein and with reference to FIGS. 1-2 is a system 10 for filling drums. In some aspects, the drums can be filled with a liquid. In some optional aspects, the liquid can comprise polymer. For example, in these aspects, the liquid can comprise a polymer mixture. In exemplary aspects, the polymer mixture can comprise polyolefin such as, for example, polypropylene.

[0026] The system 10 can comprise a plurality of rotatable platforms 20 comprising at least a first rotatable platform 20a and a second rotatable platform 20b. Each rotatable platform 20 of the plurality of rotatable platforms can be rotatable around a respective rotational axis 22.

[0027] A liquid dispenser 30 can comprise a plurality of outlets 32. A respective outlet 32 of the plurality of outlets can be positioned above each rotatable platform 20 of the plurality of rotatable platforms. Each outlet 32 of the plurality of outlets can be radially offset from the rotational axis 22 of the respective rotatable platform 20 along an axis 12 that is perpendicular to the rotational axis. Each outlet 32 of the plurality of outlets can be configured to dispense liquid along a respective dispensing axis 38.

[0028] At least one valve 34 can selectively direct polymer flow to the plurality of outlets 32. For example, in some aspects, a first valve 34a can selectively permit flow from a first outlet 32a, and a second valve 34b can selectively permit flow from the second outlet 32b. In some aspects, both of the first and second valves 34a, 34b can be in fluid communication with a supply conduit 36. In some aspects, the first outlet 32a can be positioned above the first rotatable platform 20a, and the second outlet 32b can be positioned above the second rotatable platform 20b. In other aspects, the at least one valve 34 can comprise a diverter valve (not shown) that selectively diverts flow between the first and second outlets 32a, 32b.

[0029] In some aspects, the liquid can comprise polymer. For example, in some aspects, the liquid can be, or can comprise, a polymer mixture, such as a mixture comprising melted polymer. The liquid can comprise, for example, at least one polyolefin. In some aspects, the liquid can comprise polypropylene.

[0030] Referring also to FIG. 6, the system 10 can further comprise a computing device 1001 comprising at least one processor (e.g., processor 1003) and a memory (e.g., mass storage device 1004) in communication with the at least one processor. The memory can comprise instructions that, when executed by the at least one processor, cause the at least one processor to: cause the at least one valve to redirect at least a portion of a polymer flow from the first outlet to the second outlet; and cause the first rotatable platform to rotate about the respective rotational axis by a predetermined angular displacement. In this way, the computing device 1001 can selectively direct flow between the first and second outlets 32a, 32b.

[0031] In some aspects, the system 10 can further comprise a plurality of level detectors 50 in communication with the computing device 1001. Each level detector 50 of the plurality of level detectors can be configured to detect a liquid level in respective a drum 74 below the outlet 32 of the liquid dispenser 30 above each rotatable platform. The memory can comprise instructions that, when executed by the at least one processor, cause the at least one processor to cause the at least one valve 32 to redirect at least a portion of the liquid flow from the first outlet to the second outlet when the level detector that is configured to detect the liquid level in the drum below the first outlet detects a level at or above a first predetermined threshold. In various aspects, the first predetermined threshold can be at least 75%, at least 80%, at least 85%, at least 90%, or at least 95% of the maximum level of the drum. In various aspects, the first predetermined threshold can be from about 80% to about 95% of the maximum level of the drum. In one aspect, the first predetermined threshold can be about 90% of the maximum level of the drum.

[0032] In some aspects, it can be desirable to first redirect only a portion of the flow at a first predetermined threshold, and then cease flow after a second predetermined threshold. In this way, flow can be transitioned from the first outlet 32a without deadheading a pump delivering the fluid or stopping the pump. Accordingly, in some aspects, the memory can comprise instructions that, when executed by the at least one processor, cause the at least one processor to cause the at least one valve 32 to cease flow from the first outlet to the second outlet when the level detector that is configured to detect the liquid level in the drum below the first outlet detects a level at or above a second predetermined threshold. The second predetermined threshold can correspond to a generally full drum. It is contemplated that some additional liquid can be dispensed between the time that the second predetermined threshold is detected and liquid flow is ceased. Accordingly, the at least one valve 32 can be moved to cease flow from the first outlet slightly before the drum is full. The memory can further comprise instructions that, when executed by the at least one processor, cause the at least one processor to cause the first rotatable platform to rotate about the respective rotational axis by the predetermined angular displacement after the level detector detects the level at or above the second predetermined threshold. In this way, once flow to the first outlet is ceased, an empty drum can be positioned below the first outlet 32a while continuing flow from the liquid dispenser (out the second outlet 32b), yet without spilling liquid during transition between a full drum and an empty drum.

[0033] In some aspects, the plurality of level detectors 50 can be optical level detectors. For example, in some aspects, the optical level detectors can be laser detectors. In some aspects, the plurality of level detectors 50 can be ultrasonic level detectors. In still other aspects, the plurality of level detectors 50 can be any suitable level detector.

[0034] In some aspects, each rotatable platform 20 of the plurality of rotatable platforms can comprise a guide 60 that permits receipt of a pallet assembly 70 thereon in a predetermined orientation. In some aspects, the guide 60 can comprise a plurality of surfaces 62 (e.g., portions of elongate L-shaped members such as angle iron) that are configured contact outer surfaces of the pallet assembly 72. The plurality of surfaces 62 can, for example, define a rectangular slot 64. The guide 60 can inhibit placement of the pallet assembly 70 on the rotatable platform 20 in an orientation that is offset from the predetermined orientation. In this way, the guide 60 can ensure that the pallet assembly 70 is properly aligned so that, in each rotational orientation, a respective drum is positioned below the outlet 32 above the rotatable platform 20. Still further, an additional sensor can be configured to detect a drum being positioned below each outlet 32, and the computing device can, based on feedback from said additional sensor, inhibit the liquid dispenser from dispensing if the pallet assembly is not present or is in an improper orientation. Said additional sensor can be, for example, a pressure sensor or an optical sensor.

[0035] The system 10 can further comprise a respective pallet assembly 70 positioned on each rotatable platform 20 of the plurality of rotatable platforms, each pallet assembly comprising a pallet 72 and a plurality of drums 74 positioned thereon. In some aspects, each pallet assembly 70 can comprise three drums 74. Optionally, in these aspects, each pallet assembly 70 can have exactly three drums 74. In some aspects, each pallet assembly 70 can have two, four, five, or more drums 74.

[0036] Referring to FIG. 5, in some aspects, each drum 74 has a central axis 76. A respective vertical plane 78 can extend between and include the central axis 76 of adjacent pairs of drums 74. The vertical planes 78 can form a triangular prism 80 therebetween. Some pallets optimized for shipping containers can have dimensions of about 44 inches by about 46 inches. Further, the drums 74 can similarly have standard dimensions (e.g., 55 gallon drums having a diameter of about 25 inches). In some aspects, it is contemplated that the drums 74 having certain dimensions cannot be placed within the footprint of the pallet 72 if the drums are arranged in an equilateral triangular prism. In some aspects, the triangular prism 80 can be approximately an isosceles triangular prism (e.g., optionally, within 5 degrees, or within 3 degrees, or within 2 degrees, or within 1 degree of isosceles). In some aspects, the triangular prism 80 can have two angles from about 95 degrees to about 110 degrees. In other aspects, the pallet 72 and the drums 74 can have any suitable dimensions. Accordingly, in some aspects, the triangular prism can be an equilateral triangular prism.

[0037] Referring to FIGS. 1-3, the predetermined angular displacements can be dependent on a rotational position of the at least one platform prior to rotation. For example, in order to center, or generally center, the outlet 32 above the drum, the computing device 1001 can cause the rotatable platform to rotate by the predetermined angular displacement necessary to move drums 74 so that the respective dispensing axis 38 of the outlet 32 is positioned at (e.g., coaxial with) or proximate to the central axis 76 of a drum therebelow after each rotation. For example, in some aspects, the respective dispensing axis 38 of the outlet 32 can be positioned within 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, or 12 inches of the central axis 76. In some optional aspects, the predetermined angular displacement from each rotation position can be different from at least one other predetermined angular displacement from another rotation position.

[0038] In some aspects, the predetermined angular displacement is a first predetermined angle for a first rotational segment, a second predetermined angle for a second rotational segment, and a third predetermined angle for a third rotational segment. The first, second and third rotational segments can collectively provide one full rotation. In some aspects, the first and second predetermined angles can from about 95 to about 110 degrees. For example, in one aspect, and as illustrated in FIG. 3, the second rotational segment can be rotationally offset from the first rotational segment by about 102 degrees. In further aspects, the third rotational segment can be rotationally offset from the first rotational segment by about 205 degrees.

[0039] Optionally, the first and second rotatable platforms 20 can be provided on a frame 40. The frame 40 can comprise wheels 42. The frame 40 can further comprise a trailer hitch 44 for moving the frame.Method of Use

[0040] Referring to FIGS. 1-2 and 4, disclosed is a method comprising dispensing liquid in a liquid flow from a first outlet 32a into a first drum 74a of a first pallet assembly 70a; and redirecting at least a portion of the liquid flow from first outlet 32a to a second outlet 32b above a first drum 74a of a second pallet assembly 70b upon detecting a liquid level in the first drum of the first pallet at or above a first predetermined threshold.

[0041] The first rotatable platform 20a can be rotated to position a second drum 74b of the first pallet assembly 70a below the first outlet 20a. In some aspects, the first rotatable platform 20a can be rotated a predetermined angle (e.g., from about 95 to about 110 degrees).

[0042] Liquid level in the first drum 74a of the first pallet assembly 70a at or above the first predetermined threshold can be detected. Upon detecting the liquid level in the first drum 74a of the first pallet assembly 70a at or above the first predetermined threshold, at least a portion of liquid flow from the first outlet 32a above the first drum of the first pallet assembly 70a can be redirected to the second outlet 32b above the first drum 74a of the second pallet assembly 70b.

[0043] In some aspects, an entirety of the liquid flow to the first outlet 32a can be redirected to the second outlet 32b upon detecting the liquid level in the first drum 74a of the first pallet assembly 70a at or above the first predetermined threshold. In other aspects, only a portion of the liquid flow to the first outlet can be redirected to the second outlet 32b upon detecting the liquid level in the first drum 74a of the first pallet assembly 70a at or above the first predetermined threshold. For example, in some optional aspects, only a portion of liquid flow from first outlet 32a can be redirected to the second outlet 32b above the first drum 74a of the second pallet assembly 70b upon detecting a liquid level in the first drum 74a of the first pallet assembly 70a at or above the first predetermined threshold. Upon detecting the liquid level in the first drum 74a of the first pallet assembly 70a at or above a second predetermined threshold, an entirety of the liquid flow can be redirected from first outlet. (For example, an exemplary sequence can include the first valve 34a being open and the second valve 34b being closed; upon detecting the detecting the liquid level in the first drum 74a of the first pallet assembly 70a at or above the first predetermined threshold, the second valve 34b can be opened to permit flow through both the first and second valves; upon detecting the liquid level in the first drum 74a of the first pallet assembly 70a at or above the second predetermined threshold, the first valve 34a can close, leaving only the second valve 34b open.) The first rotatable platform can be rotated about the respective rotational axis by the predetermined angular displacement after redirecting the entirety of the liquid flow from the first outlet, and, thus, after detecting the liquid level in the first drum of the first pallet at or above the second predetermined threshold.

[0044] Liquid level in the first drum 74a of the second pallet assembly 70b at or above the first predetermined threshold can be detected. Upon detecting the liquid level in the first drum 74a of the second pallet assembly 70b at or above the first predetermined threshold, at least a portion of liquid flow from the second outlet 32a above the first drum 74a of the second pallet assembly 70b can be redirected to the first outlet 32b above the second drum 74b of the first pallet assembly 70a.

[0045] For example, in some optional aspects, only a portion of liquid flow from second outlet 32b can be redirected to the first outlet 32a upon detecting a liquid level in the first drum 74a of the second pallet assembly 70b at or above a first predetermined threshold. Upon detecting the liquid level in the first drum 74a of the second pallet assembly 70b at or above a second predetermined threshold, an entirety of the liquid flow can be redirected from first outlet. The first rotatable platform can be rotated about the respective rotational axis by the predetermined angular displacement after redirecting the entirety of the liquid flow from the first outlet, and, thus, after detecting the liquid level in the first drum of the first pallet at or above the second predetermined threshold.

[0046] The second rotatable platform 20b can then be rotated to position a second drum 74b of the second pallet assembly 70b below the second outlet (e.g., once flow from the second outlet 32b is ceased). In some aspects, the first predetermined threshold can be the same for each drum, and the second predetermined threshold can be the same for each drum. In other aspects, the first predetermined threshold can be different from the first predetermined threshold of at least one other drum and / or the second predetermined threshold can be different from the second predetermined threshold of at least one other drum.

[0047] Drums of the first and second pallet assemblies 70a, b can alternatingly be filled by repeating the method of measuring the liquid level of each drum 70, ceasing flow to the drum by redirecting flow to a drum of the other pallet assembly / assemblies, and rotating the respective rotatable platform 20.

[0048] The first pallet assembly can be removed from the first rotatable platform, and a third pallet assembly comprising empty drums can be placed on the first rotatable platform. In some aspects, the first pallet assembly can be removed from the first rotatable platform, and the third pallet assembly comprising empty drums can be placed on the first rotatable platform while dispensing liquid from the second outlet into a drum of the second pallet assembly. For example, once the each of the drums of the first pallet assembly has been filled, the first pallet assembly with full drums can be replaced with the third pallet assembly comprising empty drums. It is further contemplated that the first pallet assembly can be removed and replaced with the third pallet assembly at any time (e.g., before the every drum of the first pallet assembly is full).

[0049] In some aspects, the liquid can comprise polymer. For example, in some aspects, the liquid can be, or can comprise, a polymer mixture. The liquid can comprise, for example, at least one polyolefin. In some aspects, the liquid can comprise polypropylene.Exemplary Sequence of Operation

[0050] In some aspects, the first valve 34a can be in an open position, and the second valve 34b can be in a closed position. Optionally, in this configuration (e.g., when no additional outlets are included), an entirety of flow of the supply conduit can flow out the first outlet 32a. When a level detector 50 detects a level above the first predetermined threshold (e.g., 90% full) in a first drum 74a of a pallet assembly 70a on the first rotatable platform, the second valve 34b can be opened, thereby directing a portion of the flow to a first drum 74a of a pallet assembly 70b on the second rotatable platform. The system 10 can, therefore, simultaneously fill two drums 74. Optionally, flow can be divided evenly between the two drums. In other aspects, the flow can be divided unevenly (e.g., a majority delivered to the drum on the first rotatable platform, or a majority delivered to the drum on the second rotatable platform).

[0051] Upon the level detector 50 detects a level above a second predetermined threshold (e.g., full) in a first drum 74a of a pallet assembly on the first rotatable platform 20a, the computing device 1001 can cause the first valve 34a to close, thereby delivering all of the flow to the first drum 74a of a pallet assembly 70b on the second rotatable platform 20b. With flow to the first outlet 32a ceased, the computing device 1001 can cause the first rotatable platform 20a to rotate by the predetermined angular displacement.

[0052] When a level detector 50 detects a level above the first predetermined threshold in the first drum 74a of the pallet assembly 70b on the second rotatable platform 20b, the first valve 34a can be opened, thereby directing a portion of the flow to a second drum 74b of the pallet assembly 70a on the first rotatable platform, thereby simultaneously filling both drums. In various aspects, the first predetermined threshold can be at least 75%, at least 80%, at least 85%, at least 90%, or at least 95% of the maximum level of the drum. In various aspects, the first predetermined threshold can be from about 80% to about 95% of the maximum level of the drum. In one aspect, the first predetermined threshold can be about 90% of the maximum level of the drum.

[0053] Upon the level detector 50 detecting a level above a second predetermined threshold (e.g., full) in the first drum 74a of the pallet assembly 70b on the second rotatable platform 20b, the computing device 1001 can cause the second valve 34b to close, thereby delivering all of the flow to the second drum 74b of the pallet assembly 70a on the first rotatable platform 20a. With flow to the second outlet 32b ceased, the computing device 1001 can cause the second rotatable platform 20b to rotate by the predetermined angular displacement to position an empty drum below the second outlet.

[0054] The process can be repeated to alternatingly fill drums on the first and second platforms. By redirecting flow between the outlets 32, flow can be continuous, thereby preventing dead-heading a pump delivering the liquid. FIG. 3 illustrates first, second, and third rotational positions 80a,b,c for each rotatable platform to position a respective drum below the outlet. FIG. 4 illustrates a sequence of operations for filling drums, from top to bottom, with the numbers 1-6 indicating the order in which drums are filled. At the top, both the rotatable platforms are in their respective first rotational positions (‘X’). The first rotatable platform 32a rotates to a second rotational position (‘Y’). The second rotatable platform 32b then rotates to the second rotational position (‘Y’). The first rotatable platform 32a rotates to a third rotational position (‘Z’). The second rotatable platform 32b then rotates to the third rotational position (‘Z’). The first rotatable platform then returns to the first rotational position (‘X’). The pallet assembly 70 with all 3 drums filled can be removed from the first rotatable platform 32a, and an empty pallet assembly 70 (a pallet assembly with empty drums) can be positioned thereon. The pallet assembly 70 with all 3 drums filled can be removed from the second rotatable platform 32a, and an empty pallet assembly 70 can be positioned thereon.

[0055] In some aspects, the liquid can comprise polymer. For example, in some aspects, the liquid can be, or can comprise, a polymer mixture. The liquid can comprise, for example, at least one polyolefin. In some aspects, the liquid can comprise polypropylene.

[0056] Although various embodiments herein are directed to dispensation of polymer and mixtures comprising polymer, it should be understood that other embodiments are contemplated, such as, for example, liquid food product.Computing Device

[0057] FIG. 6 shows a computing system 1000 including an exemplary configuration of a computing device 1001 for use with the drum loading system 10 (FIG. 1). In exemplary aspects, the computing device 1001 can be embodied as a single computing device. In other aspects, the computing device 1001 can be embodied as a plurality of computing devices that perform serial and / or parallel processing.

[0058] The computing device 1001 may comprise one or more processors 1003, a system memory 1012, and a bus 1013 that couples various components of the computing device 1001 including the one or more processors 1003 to the system memory 1012. In the case of multiple processors 1003, the computing device 1001 may utilize parallel computing.

[0059] The bus 1013 may comprise one or more of several possible types of bus structures, such as a memory bus, memory controller, a peripheral bus, an accelerated graphics port, and a processor or local bus using any of a variety of bus architectures.

[0060] The computing device 1001 may operate on and / or comprise a variety of computer readable media (e.g., non-transitory). Computer readable media may be any available media that is accessible by the computing device 1001 and comprises, non-transitory, volatile and / or non-volatile media, removable and non-removable media. The system memory 1012 has computer readable media in the form of volatile memory, such as random access memory (RAM), and / or non-volatile memory, such as read only memory (ROM). The system memory 1012 may store data such as sensor data 1007 and / or program modules such as operating system 1005 and flow control software 1006 that are accessible to and / or are operated on by the one or more processors 1003.

[0061] The computing device 1001 may also comprise other removable / non-removable, volatile / non-volatile computer storage media. The mass storage device 1004 may provide non-volatile storage of computer code, computer readable instructions, data structures, program modules, and other data for the computing device 1001. The mass storage device 1004 may be a hard disk, a removable magnetic disk, a removable optical disk, magnetic cassettes or other magnetic storage devices, flash memory cards, CD-ROM, digital versatile disks (DVD) or other optical storage, random access memories (RAM), read only memories (ROM), electrically erasable programmable read-only memory (EEPROM), and the like.

[0062] Any number of program modules may be stored on the mass storage device 1004. An operating system 1005 and flow control software 1006 may be stored on the mass storage device 1004. One or more of the operating system 1005 and flow control software 1006 (or some combination thereof) may comprise program modules and the flow control software 1006. The sensor data 1007 may also be stored on the mass storage device 1004. The sensor data 1007 may be stored in any of one or more databases known in the art. The databases may be centralized or distributed across multiple locations within the network 1015.

[0063] A user may enter commands and information into the computing device 1001 using an input device (not shown). Such input devices comprise, but are not limited to, a keyboard, pointing device (e.g., a computer mouse, remote control), a microphone, a joystick, a scanner, tactile input devices such as gloves, and other body coverings, motion sensor, and the like.

[0064] These and other input devices may be connected to the one or more processors 1003 using a human machine interface 1002 that is coupled to the bus 1013, but may be connected by other interface and bus structures, such as a parallel port, game port, an IEEE 1394 Port (also known as a Firewire port), a serial port, network adapter 1008, and / or a universal serial bus (USB).

[0065] A display device 1011 may also be connected to the bus 1013 using an interface, such as a display adapter 1009. It is contemplated that the computing device 1001 may have more than one display adapter 1009 and the computing device 1001 may have more than one display device 1011. A display device 1011 may be a monitor, an LCD (Liquid Crystal Display), light emitting diode (LED) display, television, smart lens, smart glass, and / or a projector. In addition to the display device 1011, other output peripheral devices may comprise components such as speakers (not shown) and a printer (not shown) which may be connected to the computing device 1001 using Input / Output Interface 1010. Any step and / or result of the methods may be output (or caused to be output) in any form to an output device. Such output may be any form of visual representation, including, but not limited to, textual, graphical, animation, audio, tactile, and the like. The display 1011 and computing device 1001 may be part of one device, or separate devices.

[0066] The computing device 1001 may operate in a networked environment using logical connections to one or more remote computing devices 1014a,b,c. A remote computing device 1014a,b,c may be a personal computer, computing station (e.g., workstation), portable computer (e.g., laptop, mobile phone, tablet device), smart device (e.g., smartphone, smart watch, activity tracker, smart apparel, smart accessory), security and / or monitoring device, a server, a router, a network computer, a peer device, edge device or other common network node, and so on. Logical connections between the computing device 1001 and a remote computing device 1014a,b,c may be made using a network 1015, such as a local area network (LAN) and / or a general wide area network (WAN), or a Cloud-based network. Such network connections may be through a network adapter 1008. A network adapter 1008 may be implemented in both wired and wireless environments. Such networking environments are conventional and commonplace in dwellings, offices, enterprise-wide computer networks, intranets, and the Internet. It is contemplated that the remote computing devices 1014a,b,c can optionally have some or all of the components disclosed as being part of computing device 1001. In some optional aspects, the remote computing devices 1014a,b,c can be in direct communication with each other and the computing device 1001. In various further aspects, it is contemplated that some or all aspects of data processing described herein can be performed via cloud computing on one or more servers or other remote computing devices. Accordingly, at least a portion of the system 1000 can be configured with internet connectivity.Exemplary Aspects

[0067] In view of the described products, systems, and methods and variations thereof, herein below are described certain more particularly described aspects of the invention. These particularly recited aspects should not however be interpreted to have any limiting effect on any different claims containing different or more general teachings described herein, or that the “particular” aspects are somehow limited in some way other than the inherent meanings of the language literally used therein.

[0068] Aspect 1: a System Comprising:

[0069] a plurality of rotatable platforms comprising at least a first rotatable platform and a second rotatable platform, wherein each rotatable platform of the plurality of rotatable platforms is rotatable around a respective rotational axis;

[0070] a liquid dispenser comprising a plurality of outlets, wherein a respective outlet of the plurality of outlets is positioned above each rotatable platform of the plurality of rotatable platforms, wherein each outlet of the plurality of outlets is radially offset from the rotational axis of the respective rotatable platform along an axis that is perpendicular to the rotational axis; and

[0071] at least one valve that is configured to selectively direct liquid flow to the plurality of outlets.

[0072] Aspect 2: The system of aspect 1, wherein the plurality of outlets comprises a first outlet positioned above the first rotatable platform and a second outlet positioned above the second rotatable platform, the system further comprising a computing device comprising at least one processor and a memory in communication with the at least one processor, wherein the memory comprises instructions that, when executed by the at least one processor, cause the at least one processor to:

[0073] cause the at least one valve to redirect at least a portion of a liquid flow from the first outlet to the second outlet; and

[0074] cause the first rotatable platform to rotate about the respective rotational axis by a predetermined angular displacement.

[0075] Aspect 3: The system of aspect 2, further comprising a plurality of level detectors in communication with the computing device, wherein each level detector of the plurality of level detectors is configured to detect a liquid level in a drum below the outlet of the liquid dispenser above each rotatable platform, wherein the memory comprises instructions that, when executed by the at least one processor, cause the at least one processor to cause the at least one valve to redirect at least a portion of the liquid flow from the first outlet to the second outlet when the level detector that is configured to detect the liquid level in the drum below the first outlet detects a level at or above a first predetermined threshold.

[0076] Aspect 4: The system of aspect 3, wherein the memory comprises instructions that, when executed by the at least one processor, cause the at least one processor to cause the at least one valve to cease flow from the first outlet to the second outlet when the level detector that is configured to detect the liquid level in the drum below the first outlet detects a level at or above a second predetermined threshold.

[0077] Aspect 5: The system of aspect 4, wherein the memory comprises instructions that, when executed by the at least one processor, cause the at least one processor to cause the first rotatable platform to rotate about the respective rotational axis by the predetermined angular displacement after the level detector detects the level at or above the second predetermined threshold.

[0078] Aspect 6: The system of any one of aspects 3-5, wherein the plurality of level detectors are optical level detectors.

[0079] Aspect 7: The system of any one of the preceding aspects, wherein each rotatable platform of the plurality of rotatable platforms comprises a guide that permits receipt of a pallet assembly thereon in a predetermined orientation.

[0080] Aspect 8: The system of aspect 7, wherein the guide comprises a plurality of surfaces that are configured contact outer surfaces of the pallet assembly.

[0081] Aspect 9: The system of aspect 8, wherein the plurality of surfaces define a rectangular slot.

[0082] Aspect 10: The system of any one of the preceding aspects, further comprising a respective pallet assembly positioned on each rotatable platform of the plurality of rotatable platforms, each pallet assembly comprising a pallet and a plurality of drums positioned thereon.

[0083] Aspect 11: The system of aspect 10, wherein each pallet assembly comprises three drums.

[0084] Aspect 12: The system of aspect 11, wherein each pallet assembly has exactly three drums.

[0085] Aspect 13: The system of aspect 12, wherein each drum has a central axis, wherein a respective vertical plane extends between and includes the central axis of adjacent pairs of drums, wherein the vertical planes form a triangular prism therebetween.

[0086] Aspect 14: The system of aspect 13, wherein the triangular prism has, in cross sections in horizontal planes, two angles from about 95 to about 110 degrees.

[0087] Aspect 15: The system of any one of aspects 2-14, wherein the predetermined angular displacement is dependent on a rotational position of the at least one platform prior to rotation.

[0088] Aspect 16: The system of aspect 15, wherein the predetermined angular displacement is a first predetermined angle for a first rotational segment, a second predetermined angle for a second rotational segment, and a third predetermined angle for a third rotational segment, wherein the first, second and third rotational segments collectively provide one full rotation.

[0089] Aspect 17: The system of aspect 16, wherein the first and second predetermined angles are from about 95 to about 110 degrees.

[0090] Aspect 18: a method comprising:

[0091] dispensing liquid in a liquid flow from a first outlet into a first drum of a first pallet assembly; and

[0092] redirecting at least a portion of the liquid flow from first outlet to a second outlet above a first drum of a second pallet assembly upon detecting a liquid level in the first drum of the first pallet at or above a first predetermined threshold.

[0093] Aspect 19: The method of aspect 18, further comprising:

[0094] detecting a liquid level in the first drum of the first pallet assembly at or above the first predetermined threshold,

[0095] wherein redirecting the at least a portion of the liquid flow from first outlet to the second outlet above the first drum of the second pallet assembly upon detecting the liquid level in the first drum of the first pallet at or above the first predetermined threshold comprises redirecting, upon detecting the liquid level in the first drum of the first pallet assembly at or above the first predetermined threshold, the at least a portion of liquid flow from the first outlet above the first drum of the first pallet assembly to the second outlet above the first drum of the second pallet assembly.

[0096] Aspect 20: The method of aspect 19, further comprising rotating a first rotatable platform to position a second drum of the first pallet assembly below the first outlet.

[0097] Aspect 21: The method of aspect 20, wherein rotating the first rotatable platform comprises rotating the first rotatable platform by a predetermined angle.

[0098] Aspect 22: The method of aspect 21, wherein the predetermined angle is a first predetermined angle, wherein the first predetermined angle is from about 95 to about 110 degrees.

[0099] Aspect 23: The method of any one of aspects 19-22, further comprising:

[0100] detecting a liquid level in the first drum of the second pallet assembly at or above the first predetermined threshold; and

[0101] redirecting, upon detecting the liquid level in the first drum of the second pallet assembly at or above the first predetermined threshold, at least a portion of liquid flow from the second outlet above the first drum of the second pallet assembly to the first outlet above the second drum of the first pallet assembly.

[0102] Aspect 24: The method of aspect 20, further comprising rotating a second rotatable platform to position a second drum of the second pallet assembly below the second outlet.

[0103] Aspect 25: The method of any one of aspects 19-24, wherein redirecting the at least a portion of liquid flow from first outlet to the second outlet comprises redirecting an entirety of the liquid flow.

[0104] Aspect 26: The method of any one of aspects 19-24, wherein redirecting the at least a portion of liquid flow from first outlet to the second outlet comprises redirecting only a portion of the liquid flow.

[0105] Aspect 27: The method of any one of aspects 19-26, further comprising redirecting an entirety of the liquid flow from first outlet upon detecting the liquid level in the first drum of the first pallet at or above a second predetermined threshold.

[0106] Aspect 28: The method of aspect 27, further comprising the first rotatable platform about the respective rotational axis by the predetermined angular displacement after detecting the liquid level in the first drum of the first pallet at or above the second predetermined threshold.

[0107] Aspect 29: The method of any one of aspects 19-28, further comprising removing the first pallet assembly from the first rotatable platform and placing a third pallet assembly comprising empty drums on the first rotatable platform while dispensing liquid from the second outlet into a drum of the second pallet assembly.

[0108] Aspect 30: The method of any one of aspects 19-29, wherein the liquid is a mixture comprising melted polymer.

[0109] Although several embodiments of the invention have been disclosed in the foregoing specification, it is understood by those skilled in the art that many modifications and other embodiments of the invention will come to mind to which the invention pertains, having the benefit of the teaching presented in the foregoing description and associated drawings. It is thus understood that the invention is not limited to the specific embodiments disclosed herein, and that many modifications and other embodiments are intended to be included within the scope of the appended claims. Moreover, although specific terms are employed herein, as well as in the claims which follow, they are used only in a generic and descriptive sense, and not for the purposes of limiting the described invention, nor the claims which follow.

Claims

1. A system comprising:a plurality of rotatable platforms comprising at least a first rotatable platform and a second rotatable platform, wherein each rotatable platform of the plurality of rotatable platforms is rotatable around a respective rotational axis;a liquid dispenser comprising a plurality of outlets, wherein a respective outlet of the plurality of outlets is positioned above each rotatable platform of the plurality of rotatable platforms, wherein each outlet of the plurality of outlets is radially offset from the rotational axis of the respective rotatable platform along an axis that is perpendicular to the rotational axis; andat least one valve that is configured to selectively direct liquid flow to the plurality of outlets.

2. The system of claim 1, wherein the plurality of outlets comprises a first outlet positioned above the first rotatable platform and a second outlet positioned above the second rotatable platform, the system further comprising a computing device comprising at least one processor and a memory in communication with the at least one processor, wherein the memory comprises instructions that, when executed by the at least one processor, cause the at least one processor to:cause the at least one valve to redirect at least a portion of a liquid flow from the first outlet to the second outlet; andcause the first rotatable platform to rotate about the respective rotational axis by a predetermined angular displacement.

3. The system of claim 2, further comprising a plurality of level detectors in communication with the computing device, wherein each level detector of the plurality of level detectors is configured to detect a liquid level in a drum below the outlet of the liquid dispenser above each rotatable platform, wherein the memory comprises instructions that, when executed by the at least one processor, cause the at least one processor to cause the at least one valve to redirect at least a portion of the liquid flow from the first outlet to the second outlet when the level detector that is configured to detect the liquid level in the drum below the first outlet detects a level at or above a first predetermined threshold.

4. The system of claim 3, wherein the memory comprises instructions that, when executed by the at least one processor, cause the at least one processor to cause the at least one valve to cease flow from the first outlet to the second outlet when the level detector that is configured to detect the liquid level in the drum below the first outlet detects a level at or above a second predetermined threshold.

5. The system of claim 4, wherein the memory comprises instructions that, when executed by the at least one processor, cause the at least one processor to cause the first rotatable platform to rotate about the respective rotational axis by the predetermined angular displacement after the level detector detects the level at or above the second predetermined threshold.

6. The system of claim 3, wherein the plurality of level detectors are optical level detectors.

7. The system of claim 1, wherein each rotatable platform of the plurality of rotatable platforms comprises a guide that permits receipt of a pallet assembly thereon in a predetermined orientation.

8. The system of claim 7, wherein the guide comprises a plurality of surfaces that are configured contact outer surfaces of the pallet assembly.

9. The system of claim 8, wherein the plurality of surfaces define a rectangular slot.

10. The system of claim 1, further comprising a respective pallet assembly positioned on each rotatable platform of the plurality of rotatable platforms, each pallet assembly comprising a pallet and a plurality of drums positioned thereon.

11. The system of claim 10, wherein each pallet assembly comprises three drums.

12. The system of claim 11, wherein each pallet assembly has exactly three drums.

13. The system of claim 12, wherein each drum has a central axis, wherein a respective vertical plane extends between and includes the central axis of adjacent pairs of drums, wherein the vertical planes form a triangular prism therebetween.

14. The system of claim 13, wherein the triangular prism has, in cross sections in horizontal planes, two angles from about 95 to about 110 degrees.

15. The system of claim 2, wherein the predetermined angular displacement is dependent on a rotational position of the at least one platform prior to rotation.

16. The system of claim 11, wherein the predetermined angular displacement is a first predetermined angle for a first rotational segment, a second predetermined angle for a second rotational segment, and a third predetermined angle for a third rotational segment, wherein the first, second and third rotational segments collectively provide one full rotation.

17. The system of claim 16, wherein the first and second predetermined angles are from about 95 to about 110 degrees.

18. A method comprising:dispensing liquid in a liquid flow from a first outlet into a first drum of a first pallet assembly; andredirecting at least a portion of the liquid flow from first outlet to a second outlet above a first drum of a second pallet assembly upon detecting a liquid level in the first drum of the first pallet at or above a first predetermined threshold.

19. The method of claim 18, further comprising:detecting a liquid level in the first drum of the first pallet assembly at or above the first predetermined threshold,wherein redirecting the at least a portion of the liquid flow from first outlet to the second outlet above the first drum of the second pallet assembly upon detecting the liquid level in the first drum of the first pallet at or above the first predetermined threshold comprises redirecting, upon detecting the liquid level in the first drum of the first pallet assembly at or above the first predetermined threshold, the at least a portion of liquid flow from the first outlet above the first drum of the first pallet assembly to the second outlet above the first drum of the second pallet assembly.

20. The method of claim 19, further comprising rotating a first rotatable platform to position a second drum of the first pallet assembly below the first outlet.

21. The method of claim 20, wherein rotating the first rotatable platform comprises rotating the first rotatable platform by a predetermined angle.

22. The method of claim 21, wherein the predetermined angle is a first predetermined angle, wherein the first predetermined angle is from about 95 to about 110 degrees.

23. The method of claim 19, further comprising:detecting a liquid level in the first drum of the second pallet assembly at or above the first predetermined threshold; andredirecting, upon detecting the liquid level in the first drum of the second pallet assembly at or above the first predetermined threshold, at least a portion of liquid flow from the second outlet above the first drum of the second pallet assembly to the first outlet above the second drum of the first pallet assembly.

24. The method of claim 20, further comprising rotating a second rotatable platform to position a second drum of the second pallet assembly below the second outlet.

25. The method of claim 19, wherein redirecting the at least a portion of liquid flow from first outlet to the second outlet comprises redirecting an entirety of the liquid flow.

26. The method of claim 19, wherein redirecting the at least a portion of liquid flow from first outlet to the second outlet comprises redirecting only a portion of the liquid flow.

27. The method of claim 19, further comprising redirecting an entirety of the liquid flow from first outlet upon detecting the liquid level in the first drum of the first pallet at or above a second predetermined threshold.

28. The method of claim 27, further comprising the first rotatable platform about the respective rotational axis by the predetermined angular displacement after detecting the liquid level in the first drum of the first pallet at or above the second predetermined threshold.

29. The method of claim 19, further comprising removing the first pallet assembly from the first rotatable platform and placing a third pallet assembly comprising empty drums on the first rotatable platform while dispensing liquid from the second outlet into a drum of the second pallet assembly.

30. The method of claim 19, wherein the liquid is a mixture comprising melted polymer.

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