# US 2015/0144641 A1 · Bunded tank system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2015/0144641 A1 - Document ID: US20150144641A1 - Status: Published application - Kind: A1 - Application number: 14/345,231 - Filed: 2012-09-14 - Published: 2015-05-28 - Earliest claimed: 2011-09-16 - Assignees: Ethanex Limited - Inventors: Robert M. Green; Nicholas G. Smith; George H. Smith - Web page: https://patentgrep.com/patent/US20150144641A1 ## CPC - B65D 88/022: {in multiple arrangement, e.g. stackable, nestable, connected or joined together side-by-side} - B65D 88/121: {ISO containers} - B65D 88/128: {tank containers, i.e. containers provided with supporting devices for handling} - B65D 88/54: characterised by means facilitating filling or emptying - B65D 90/0006: {Coupling devices between containers, e.g. ISO-containers (coupling devices between containers and vehicles B60P7/13)} - B65D 90/24: Spillage-retaining means, e.g. recovery ponds - B65D 90/34: Venting means (vehicle fuel tanks characterised by venting means B60K15/035) - B65D 2590/0066: Containers inside the container - 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 ## Abstract A bunded tank system suitable for both transport and storage of bulk dangerous industrial liquids is provided. Preferably the tank is containerised to provide efficient use of space and improved logistics for transport and storage. The containerised bunded tank system includes a plurality of bunded sub-tanks arranged in an interlocking manner within an ISO container. In addition the container is fitted with an improved container lock. ## Claims ### Claim 1 A tank system comprising: a first substantially rectangular outer tank having a bottom wall, end walls, enclosing side walls, and an open top, wherein at least the enclosing side walls or the end walls of said first outer tank are corrugated, and said corrugated walls of said first outer tank define inner wall portions and outer wall portions, a second substantially rectangular inner tank having a bottom wall, end walls, enclosing side walls and a closed top, and including an aperture for filling and/or emptying said inner tank, said second inner tank being arranged within said first outer tank, and wherein neighboring walls of said second inner tank are adjacent and abut said inner wall portions of said first outer tank, said first outer tank has a volume of at least 110% the volume of said second inner tank, and said first outer tank being sized to fit inside the confines of an ISO standard container. ### Claim 2 (depends on 1) A tank system as claimed in claim 1, wherein the ISO standard container is a 20 foot half height container. ### Claim 3 (depends on 1) A tank system as claimed in claim 1, wherein the corrugations of said corrugated walls are parallel to the vertical axis of the tank in use. ### Claim 4 (depends on 1) A tank system as claimed in claim 1, wherein said bottom wall of said first outer tank is ribbed. ### Claim 5 (depends on 4) A tank system as claimed in claim 4, wherein said bottom wall of said second inner tank is ribbed, and said ribs of said bottom wall of said second inner tank interlock with said ribs of said bottom wall of said first outer tank. ### Claim 6 (depends on 1) A tank system as claimed in claim 1, wherein the corrugated spaces between the first outer tank and the second inner tank, together comprise at least approximately 10% of the volume of said second inner tank. ### Claim at position 7 -12. (canceled) ### Claim 13 (depends on 1) A tank system as claimed in claim 1, wherein said end walls of said second inner tank are substantially planar. ### Claim 14 (depends on 1) A tank system as claimed in claim 1, wherein said side walls of said second inner tank are substantially planar. ### Claim at position 10 -17. (canceled) ### Claim 18 (depends on 1) A tank system as claimed in claim 1, wherein said tank is surrounded on at least 5 sides by an open wire mesh cage. ### Claim 19 (depends on 1) A tank assembly comprising a plurality of tanks as claimed in claim 1, wherein said tanks are positioned adjacent and aligned with each other such that correspondingly adjacent corrugated walls of at least two said first outer tanks contact and interlock with each other. ### Claim 20 (depends on 19) A tank assembly as claimed in claim 19, comprising a plurality of said tanks positioned adjacent and aligned with each other and fitted inside the confines of an ISO standard 20 foot half height container and wherein said plurality is: a) two tanks, or b) three tanks, or c) four tanks, or d) five tanks, or e) six tanks, or f) seven tanks, or g) eight tanks. ### Claim 21 (depends on 20) A tank assembly as claimed in claim 20, wherein said container is a half height high cube container. ### Claim 22 (depends on 20) A tank assembly as claimed in claim 20, wherein the total volume of said second inner tanks combined does not exceed approximately 10,000 L. ### Claim 23 (depends on 1) A tank assembly as claimed in claim 1, wherein the volume of each inner tank does not exceed 3,000 L. ### Claim 24 (depends on 1) A tank assembly as claimed in claim 1, wherein the volume of each inner tank is approximately 2,500 L. ### Claim 25 (canceled) ### Claim 26 (depends on 20) A tank assembly as claimed in claim 20 wherein said tanks are surrounded on at least 3 sides by an open wire mesh cage. ### Claim at position 20 -51. (canceled) ### Claim 52 A containerized tank system comprising: a first outer tank having a bottom wall, end walls, enclosing side walls, and an open top, a second inner tank having a bottom wall, end walls, enclosing side walls and a closed top, and including an aperture for filling and/or emptying said inner tank, and an ISO standard container, said first outer tank having a volume of at least 110% the volume of said second inner tank, at least the side walls and/or end walls of the first outer tank being substantially as wide as the internal width of the ISO standard container, said second inner tank being arranged within said first outer tank to form a tank assembly, and said tank assembly being arranged within the ISO standard container. ### Claim 53 (depends on 52) A containerized tank system as claimed in claim 52, comprising a plurality of tank assemblies, wherein the plurality is: a) two tank assemblies, or b) three tank assemblies, or c) four tank assemblies, or d) five tank assemblies, or e) six tank assemblies, or f) seven tank assemblies, or g) eight tank assemblies. ### Claim 54 (depends on 52) A containerized tank system as claimed in claim 52, wherein the ISO standard container is a 20 foot half height container. ### Claim 55 (depends on 53) A containerized tank system as claimed in claim 53, wherein the ISO standard container is a 20 foot half height container.