# US 9,434,534 B2 · Retention tank storage cover > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,434,534 B2 - Document ID: US9434534B2 - Status: Granted - Kind: B2 - Application number: 14/248,049 - Filed: 2014-04-08 - Published: 2015-10-08 - Granted: 2016-09-06 - Earliest claimed: 2014-04-08 - Applicants: Michael Whitener - Inventors: Michael Whitener - Web page: https://patentgrep.com/patent/US9434534B2 ## CPC - B65D 88/34: having floating covers, e.g. floating roofs or blankets - E02B 1/00: Equipment or apparatus for, or methods of, general hydraulic engineering {, e.g. protection of constructions against ice-strains (protection of offshore constructions against ice-loads E02B17/0021; ice-structures as artificial islands E02B17/028)} - 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 - E02B: HYDRAULIC ENGINEERING (ship-lifting E02C; dredging E02F) ## Abstract The disclosure teaches a polyurea coated water storage floatation cover comprising a layer of buoyant closed cell foam coated with polyurea, a upper layer of polyurea coated textile attached to the buoyant closed cell foam coated with polyurea, and attachment components affixed to the upper layer of the polyurea coated textile. The cover can be rolled up for storage and transportation. The cover can be reused. The cover can be made in sections that can be attached together to cover a large area of water surface such as in a retention pond or open top tank. ## Claims ### Claim 1 A polyurea coated water storage floatation cover comprising: a) at least a single layer section of non buoyant water impervious comprising coated fibers, fabric or geotextile having a first upper side and a second underside; b) floatation sections which are selectively and separately attached to the non buoyant water impervious cover wherein a combination of the plurality of attached floatation sections to the non buoyant water impervious cover section forms a buoyant substantially flat panel; c) each of the plurality of selectively dimensioned floatation sections are sprayed with water imperious coating and attached to the second underside of the non buoyant water impervious continuous liner; d) a plurality of positioned and dimensioned floatation sections attached to the non buoyant water impervious cover wherein neither the dimensioned floatation sections nor the non buoyant impervious cover comprise a metal or rigid frame nor are the floatation sections and non buoyant impervious cover anchored or tethered; e) the plurality of positioned and dimensioned floatation sections attached to the non buoyant water impervious cover in a selected pattern wherein the positioned and dimensioned floatation sections are configured to achieve a combined buoyancy with the water impervious cover to maintain the water impervious covering substantially at a fluid surface level; and f) one or more complementary detachable fasteners attaching one buoyant substantially flat panel to one or more other buoyant substantially flat panel. ### Claim 2 (depends on 1) The water storage floatation cover of claim 1 further comprising floatation sections of buoyant foam. ### Claim 3 (depends on 2) The water storage floatation cover of claim 2 wherein the buoyant foam is flexible. ### Claim 4 (depends on 2) The water storage floatation cover of claim 2 wherein the buoyant foam is compressible. ### Claim 5 (depends on 2) The water storage floatation cover of claim 2 wherein the floatation components comprise buoyant foam sprayed with polyurea coating. ### Claim 6 (depends on 1) The water storage floatation cover of claim 1 further comprising a fabric sprayed with water impervious polyurea. ### Claim 7 (depends on 6) The water storage floatation cover of claim 6 further comprising spraying the first upper side and the second underside with polyurea. ### Claim 8 (depends on 1) The water storage floatation cover of claim 1 further comprising floatation components sized and positioned on the water impervious fabric to support the water impervious fabric substantially at the surface of the water. ### Claim 9 (depends on 8) The water storage floatation cover of claim 8 further comprising the water storage floatation liner without an anchor or attachment to a side or bottom of a water retention tank or pond. ### Claim 10 (depends on 1) The floatation cover of claim 1 further comprising closed cell foam attached to first upper surface. ### Claim 11 (depends on 1) The floatation cover of claim 1 further comprising a layer of buoyant closed cell foam attached to a second bottom surface. ### Claim 12 (depends on 1) The floatation cover of claim 1 further comprising a plurality of sections of buoyant closed cell foam. ### Claim 13 A polyurea coated storage floatation cover section comprising: a) at least a layer of buoyant floatation section coated with a fluid impervious layer of polyurea; b) a textile coated with a water impervious layer of polyurea having a first top surface and a second bottom surface wherein a plurality of separated buoyant floatation sections are selectively positioned by attachment to a surface of the textile to form a buoyant substantially flat panel; c) the buoyant flat panel has a selected buoyancy by dimension and position of the buoyant floatation sections to suspend the buoyant flat panel substantially at a fluid surface; and d) one or more detachable fasteners attached to one or more buoyant flat panels and complementary fastener attached to one or more separate buoyant flat panel creating a buoyant covering structure comprised of a plurality of buoyant substantially flat panels. ### Claim 14 (depends on 13) The floatation cover of claim 13 further comprising a plurality of buoyant flat panels configured to be attached together in a pattern to match the shape of a top of a water storage tank or pond. ### Claim 15 (depends on 13) The floatation cover of claim 13 wherein the at least one section of buoyant closed cell foam has a different shape than another section. ### Claim 16 (depends on 13) A combination of polyurea coated water storage floatation panels of claim 13 wherein the combined shape of the polyurea coated water storage floatation panels substantially matches the surface shape. ### Claim 17 (depends on 16) The combination of attached polyurea coated water storage floatation panels of claim 16 without anchors or attachments to the sides or bottom of the body of water.