# US 2014/0190967 A1 · Systems and methods for reducing vapor emission from floating roof storage vessels > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190967 A1 - Document ID: US20140190967A1 - Status: Published application - Kind: A1 - Application number: 13/847,847 - Filed: 2013-03-20 - Published: 2014-07-10 - Earliest claimed: 2012-03-20 - Assignees: Kinder Morgan Operating L.P."C" - Inventors: Wayne Eggemeyer - Web page: https://patentgrep.com/patent/US20140190967A1 ## CPC - B65D 88/42: with sealing means between cover rim and receptacle - B65D 88/40: with support for aground cover - B65D 90/28: Means for preventing or minimising the escape of vapours - Y10T 137/0402: Cleaning, repairing, or assembling - 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 - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract Floating roof storage vessels including a vapor emission reduction system designed to be inserted into deck leg apertures, when the legs have been removed during hydrocarbon storage. ## Claims ### Claim 1 An emission controlled floating roof storage tank apparatus comprising: a floating roof including: a plurality of leg sleeves distributed in the floating roof of the tank, a side or sides, and a bottom, and a vapor emission control system including: a plurality of vapor emission control apparatuses, each vapor emission control apparatus comprises: a top compression plate including an top plate aperture therethrough, a bottom compression plate including a bottom plate aperture therethrough, a compressible member interposed therebetween and including a compressible member aperture therethrough, and a compression assembly for compressing the compressible member, where each sleeve includes a vapor emission control apparatus inserted into a top of each sleeve and the compression assembly compresses the compressible member to produce a gas tight seal between the compressible member and an inner surface of each sleeve when the tank is in service and where the compression assembly decompresses the compressible member, when the vapor emission control apparatuses need to be removed from the sleeves and where the vapor emission control system reduces, substantially eliminates or completely eliminates volatile organic compound (VOC) emissions from the tank through the leg sleeves. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the compression assembly comprises: a threaded shaft inserted through the member and the plates and including a head end for engaging a bottoms surface of the bottom plate, and tail end including a handle for rotating the threaded shaft. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein each vapor emission control apparatus further includes: a top designed to rest on a top end of each leg sleeve, and a locking assembly for locking the shaft. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein the locking assembly comprises: a nut having wings. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein each vapor emission control apparatus further includes: a spacer interposed between the top and the locking member. ### Claim 6 A vapor emission control system comprising: a plurality of vapor emission control apparatuses, each vapor emission control apparatus comprises: a top compression plate including an top plate aperture therethrough, a bottom compression plate including a bottom plate aperture therethrough, a compressible member interposed therebetween and including a compressible member aperture therethrough, and a compression assembly for compressing the compressible member, where each sleeve includes a vapor emission control apparatus inserted into a top of each sleeve and the compression assembly compresses the compressible member to produce a gas tight seal between the compressible member and an inner surface of each sleeve when the tank is in service and where the compression assembly decompresses the compressible member, when the vapor emission control apparatuses need to be removed from the sleeves and where the vapor emission control system reduces, substantially eliminates or completely eliminates volatile organic compound (VOC) emissions from the tank through the leg sleeves. ### Claim 7 (depends on 6) The system of claim 6, wherein the compression assembly comprises: a threaded shaft inserted through the member and the plates and including a head end for engaging a bottoms surface of the bottom plate, and tail end including a handle for rotating the threaded shaft. ### Claim 8 (depends on 6) The system of claim 6, wherein each vapor emission control apparatus further includes: a top designed to rest on a top end of each leg sleeve, and a locking assembly for locking the shaft. ### Claim 9 (depends on 8) The system of claim 8, wherein the locking assembly comprises: a nut having wings. ### Claim 10 (depends on 6) The system of claim 6, wherein each vapor emission control apparatus further includes: a spacer interposed between the top and the locking member. ### Claim 11 A method for reducing emission from a floating roof storage tank comprising: inserting a vapor emission control apparatus into a top of each leg sleeve of the floating roof storage tank, where the vapor emission control apparatuses comprise: a top compression plate including an top plate aperture therethrough, a bottom compression plate including a bottom plate aperture therethrough, a compressible member interposed therebetween and including a compressible member aperture therethrough, and a compression assembly for compressing the compressible member, compressing the compressible member via the compression assembly to produce a gas tight seal between the compressible member and an inner surface of each sleeve when the tank is in service, where the vapor emission control apparatuses reduce, substantially eliminate, or completely eliminate volatile organic compound (VOC) emissions from the tank through the leg sleeves. ### Claim 12 (depends on 11) The method of claim 11, further comprising: decompressing the compressible member via the compression assembly so that the vapor emission control apparatuses may be removed from the sleeves. ### Claim 13 (depends on 11) The method of claim 11, wherein the compression assembly comprises: a threaded shaft inserted through the member and the plates and including a head end for engaging a bottoms surface of the bottom plate, and tail end including a handle for rotating the threaded shaft. ### Claim 14 (depends on 11) The method of claim 11, wherein each vapor emission control apparatus further includes: a top designed to rest on a top end of each leg sleeve, and a locking assembly for locking the shaft. ### Claim 15 (depends on 14) The apparatus of claim 14, wherein the locking assembly comprises: a nut having wings. ### Claim 16 (depends on 11) The method of claim 11, wherein each vapor emission control apparatus further includes: a spacer interposed between the top and the locking member.