# US 11,306,872 B2 · Core structured components, containers, and methods of casting > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,306,872 B2 - Document ID: US11306872B2 - Status: Granted - Kind: B2 - Application number: 16/563,865 - Filed: 2019-09-07 - Published: 2020-01-16 - Granted: 2022-04-19 - Earliest claimed: 2013-02-08 - Assignees: Loukus Technologies, Inc. - Applicants: Loukus Technologies, Inc. - Inventors: Adam R. Loukus; Josh E. Loukus; Roy H. Loukus; Travis Pennala; Luke Luskin; Steven J. Benda - Web page: https://patentgrep.com/patent/US11306872B2 ## CPC - F17C 11/007: {for hydrocarbon gases, such as methane or natural gas, propane, butane or mixtures thereof [LPG]} - B22D 19/02: for making reinforced articles (B22D19/14 takes precedence) - B29C 33/448: {destructible (B29C33/52 takes precedence; in particular used in injection moulding B29C45/4457)} - B29C 33/52: soluble or fusible {(in particular used in injection moulding B29C45/4457)} - B29C 39/10: incorporating preformed parts or layers, e.g. casting around inserts or for coating articles {(coating a surface by casting in general B05D1/30, B29C39/126 takes precedence)} - B65D 1/24: with moulded compartments or partitions - B29L 2031/712: {Containers; Packaging elements or accessories, Packages (closures therefor B29L2031/56; ink or toner cartridges B29L2031/7678; squeeze tubes B29L2023/20; suitcases B29L2031/7418)} - F17C 2201/0166: divided in several chambers - F17C 2201/0171: comprising a communication hole between chambers - F17C 2209/2109: Moulding - F17C 2221/033: Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG - F17C 2223/0123: gaseous, e.g. CNG, GNC - F17C: VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES (storing fluids in natural or artificial cavities or chambers in the earth B65G5/00; construction or assembling of bulk storage containers employing civil-engineering techniques E04H7/00; variable-capacity gas-holders F17B; liquefaction or refrigeration machines, plants, or systems F25) - B22D: CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES (shaping of plastics or substances in a plastic state B29C; metallurgical processing, selection of substances to be added to metal C21, C22) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES ## Abstract A structural component having an internal support structure extending between outer wall portions of the component with one or more compartments included within the support structure. The support structure has support members including internal walls positioned between and/or defined by the compartments. At least one support member connects between the outer wall portions of the component to enhance the structural integrity of the component. The structural component, including the internal support, are cast from a molten material, and in some cases the support members of the internal support structure are formed with a rectilinear configuration. In some cases the cast structural component is a container and the one or more compartments are configured to store a fluid, such as a gas or a liquid. One or more preforms can be used to form a container and may be retained or eliminated from the container after casting. ## Claims ### Claim 1 A structural component cast from a molten material, the structural component comprising: an external wall; a cast first outer wall portion of the external wall; a cast second outer wall portion of the external wall; a cast third outer wall portion of the external wall having a generally planar configuration; a cast internal support structure extending between the first outer wall portion and the second outer wall portion; and a plurality of compartments positioned within the internal support structure; the external wall substantially enclosing the plurality of compartments; the internal support structure comprising a plurality of internal walls; said plurality of compartments comprising a first set of compartments and a second set of compartments; said first set of compartments separating said second set of compartments from said external walls; at least one of said second set of compartments defined by internal walls of the internal wall structure and openings on the internal walls connecting adjacent compartments; at least one of said openings extending between said first set of compartments and said second set of compartments; wherein the internal support structure comprises a plurality of rectilinear support members, each of the rectilinear support members comprising a solidified material formed by a corresponding molten material flow path provided by a core structure used to cast the structural component; wherein said rectilinear support members and said external wall are integrally formed and include a solidified material; wherein at least one of the rectilinear support members extends parallel to the third outer wall portion and is connected between the first outer wall portion and the second outer wall portion to enhance a structural integrity of the structural component; wherein the rectilinear support members comprise a plurality of internal walls defined by the compartments; and wherein the cast internal support structure and the cast first, second, and third outer wall portions are integral and comprise a solidified material. ### Claim 2 (depends on 1) The structural component of claim 1, further comprising at least a first contiguous cavity within the structural component, wherein the first contiguous cavity comprises two or more of the compartments. ### Claim 3 (depends on 2) The structural component of claim 2, wherein the internal walls further provide at least one fluid flow path within the first contiguous cavity through the two or more compartments. ### Claim 4 (depends on 1) The structural component of claim 1, wherein the compartments are arranged in a geometric configuration. ### Claim 5 (depends on 4) The structural component of claim 4, wherein the compartments have an approximately polyhedral shape. ### Claim 6 (depends on 4) The structural component of claim 4, wherein a first set of the compartments has a first size and a second set of the compartments has a second size larger than the first. ### Claim 7 (depends on 6) The structural component of claim 6, wherein the second set of compartments are positioned near a middle of the structural component and the first set of compartments are arranged between the second set of compartments and an external wall of the structural component. ### Claim 8 (depends on 7) The structural component of claim 7, wherein the first outer wall portion and the second outer wall portion each have a generally planar configuration. ### Claim 9 (depends on 1) The structural component of claim 1, wherein at least one rectilinear support member is configured as a generally planar wall extending parallel to an approximately polyhedral surface defining one side of a compartment. ### Claim 10 (depends on 1) The structural component of claim 1, further comprising an external wall comprising the first outer wall portion and the second outer wall portion, wherein each of the first and the second outer wall portions have a curved profile. ### Claim 11 (depends on 1) The structural component of claim 1, further comprising an external wall comprising a plurality of outer wall portions including the first, second, and third outer wall portions, wherein each of the outer wall portions has a generally planar configuration. ### Claim 12 A container cast from a molten material, the container comprising: a plurality of compartments, each compartment having a configuration provided at least in part by a corresponding preform forming a part of a core structure used to cast the container; a cast internal support structure comprising a plurality of cast rectilinear support members, the rectilinear support members comprising a plurality of internal walls defined by the plurality of compartments; and a cast external wall substantially enclosing the internal support structure and the plurality of compartments; said plurality of compartments comprising a first set of compartments and a second set of compartments; said first set of compartments separating said second set of compartments from said external walls; at least one of said second set of compartments defined by internal walls of the internal wall structure and openings on the internal walls connecting adjacent compartments; at least one of said openings extending between said first set of compartments and said second set of compartments; wherein the external wall comprises a first outer wall portion and a second outer wall portion; wherein at least one of the rectilinear support members is connected between the first outer wall portion and the second outer wall portion to enhance a structural integrity of the container; and wherein each intersection of the cast internal support structure with the cast external wall is integral and comprises a solidified material. ### Claim 13 (depends on 12) The container of claim 12, wherein the external wall has a generally planar configuration. ### Claim 14 (depends on 12) The container of claim 12, wherein the external wall has a cylindrical configuration. ### Claim 15 (depends on 12) The container of claim 12, wherein the solidified material comprises one or more of a metal, a metal matrix composite, a glass, an elastomer, a confection, a thermoplastic polymer, and a thermosetting polymer. ### Claim 16 (depends on 12) The container of claim 12, wherein each of the plurality of compartments comprises a void formed in the container from removing one of the preforms from the core structure. ### Claim 17 (depends on 12) The container of claim 12, wherein each of the plurality of compartments comprises at least a portion of its corresponding preform, the corresponding preform comprising a permeable storage material configured to store a fluid. ### Claim 18 (depends on 17) The container of claim 17, wherein the storage material comprises a graphite based fiber material configured to adsorb the fluid. ### Claim 19 (depends on 12) The container of claim 12, wherein the external wall comprises a third outer wall portion having a generally planar configuration, and wherein the at least one rectilinear support member connected between the first outer wall portion and the second outer wall portion extends parallel to the third outer wall portion. ### Claim 20 (depends on 13) The container of claim 13, wherein the external wall comprises a plurality of outer wall portions comprising the first outer wall portion and the second outer wall portion, and wherein each of the outer wall portions has a generally planar configuration.