# US 9,518,399 B2 · Foldable children's wading pool and method of use > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,518,399 B2 - Document ID: US9518399B2 - Status: Granted - Kind: B2 - Application number: 14/564,481 - Filed: 2014-12-09 - Published: 2016-06-09 - Granted: 2016-12-13 - Earliest claimed: 2014-12-09 - Applicants: Larry Wares - Inventors: Larry Wares - Web page: https://patentgrep.com/patent/US9518399B2 ## CPC - E04H 4/0018: {Easily movable or transportable swimming pools} - E02D 27/38: Foundations for large tanks, e.g. oil tanks - E04H 2004/0068: {made of plastic shells or plastic elements including at least parts of walls and floors} - E04H: BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL (foundations E02D) - E02D: FOUNDATIONS; EXCAVATIONS; EMBANKMENTS (specially adapted for hydraulic engineering E02B); UNDERGROUND OR UNDERWATER STRUCTURES {(tunnels, tunnelling, mining E21)} ## Abstract A foldable, portable fabric children's wading pool for installation in the ground and which has improved stability characteristics is provided. The pool includes a waterproof fabric base, a middle stabilizer section with a foam stiffening strip, and a sand anchor section with sleeves for holding a weighting material such as sand. The pool is set up by digging a hole in the ground and forming berms along the edges of the hole. Then, the pool is unfolded and positioned such that the waterproof fabric base is in the hole, the middle stabilizer section is on the top of the sand berm, and the sand anchor section extends downwardly and outwardly from the edge of the sand berm. Then, a weighting material is loaded into the sand anchor section and the pool is filled with water, preferably using the waterproof bag that also serves as a storage and transport bag for the pool when folded. ## Claims ### Claim 1 A wading pool comprising: a waterproof fabric base with a bottom section and at least one side section; a middle stabilizer section attached to the outside edge of the waterproof fabric base, said middle stabilizer section comprising fabric and a foam stiffening strip to stiffen the fabric of the middle stabilizer section; a sand anchor section extending outwardly from the outward edge of the middle stabilizer section; said sand anchor section comprising a sleeve; and said sleeve having a fabric pocket section with an open top that will allow a user to open the top of the sleeve and insert or remove weighting material. ### Claim 2 (depends on 1) The wading pool of claim 1 wherein the foam is comprised of a closed-cell foam. ### Claim 3 (depends on 2) The wading pool of claim 2 wherein the foam is selected from the following: polyethylene, cross-linked polyethylene, expanded polystyrene, neoprene rubber and polyvinyl chloride nitrile butadiene rubber. ### Claim 4 (depends on 1) The wading pool of claim 1 wherein the foam stiffening strip is attached to the underside of the fabric of the middle stabilizer section. ### Claim 5 (depends on 1) The wading pool of claim 1 wherein the stiffening strip is fully enclosed by the fabric of the middle stabilizer section. ### Claim 6 (depends on 1) The wading pool of claim 1 wherein the stiffening strip is pre-creased at intervals in order to enable it to be folded for storage. ### Claim 7 (depends on 1) The wading pool of claim 1 wherein the sleeve further comprises a mesh top window. ### Claim 8 (depends on 7) The wading pool of claim 7 wherein the mesh top window further comprises an elastic cord incorporated along the top edge of the mesh top window; and the elastic cord is attached to the sand anchor fabric at a plurality of points. ### Claim 9 (depends on 1) The wading pool of claim 1 wherein the sleeve extends for the majority of the length of perimeter of the sand anchor section and further wherein the open top of the sleeve extends for the majority of the length of the sleeve. ### Claim 10 (depends on 1) The wading pool of claim 1 wherein the middle stabilizer section and sand anchor section are divided into four separate segments and such that each of the four separate segments of the middle stabilizer section are connected to the adjoining segment by a fabric gusset that does not have a foam stiffening strip and further such that the sand anchor sleeve does not extend below the bottom edge of the fabric gusset. ### Claim 11 (depends on 10) The wading pool of claim 10 wherein the pool is generally oval-shaped when viewed from above. ### Claim 12 (depends on 11) The wading pool of claim 11 wherein each of the sand anchor sleeves is open at each end of each sleeve below the fabric gusset. ### Claim 13 (depends on 11) The wading pool of claim 11 wherein each of the sand anchor sleeves is partially closed at each end of the sleeve below the fabric gusset. ### Claim 14 (depends on 1) The wading pool of claim 1 wherein the waterproof fabric base is dark in color, such that the dark color will cause warming by the sun of water placed in the pool. ### Claim 15 (depends on 14) The wading pool of claim 14 wherein the waterproof fabric base is black in color. ### Claim 16 (depends on 1) The wading pool of claim 1 further comprising a separate fabric bag, into which a user can fold and store the entire wading pool. ### Claim 17 (depends on 16) The wading pool of claim 16 wherein the separate fabric bag is waterproof. ### Claim 18 A method for constructing an in-ground wading pool comprising: (a) providing an in-ground wading pool comprising: (i) a waterproof fabric base with a bottom section and at least one side section; (ii) a middle stabilizer section attached to the outward edge of the waterproof fabric base, said middle stabilizer section comprising fabric and a stiffening strip to stiffen the fabric of the middle stabilizer section; (iii) a sand anchor section extending outwardly from the middle stabilizer section, comprising a sleeve; and (iv) said sleeve having a fabric pocket section and a mesh top window that is secured to the top of the sand anchor section by an elastic cord that will allow a user to stretch open the top of the sleeve and insert or remove weighting material (b) digging into the ground to excavate a hole, wherein the sides of said hole taper downwardly and inwardly; (c) forming a berm out of the same material as the ground that is taller than the surrounding ground surface and located along the edges of the hole; (d) placing said in-ground wading pool in the hole, such that the waterproof fabric base is in contact with the bottom and sides of the hole, and the inside sides of the berm, thereby providing lateral support for the side section of the waterproof fabric base, and further such that the middle stabilizer section is in contact with the top of the berm, and further such that the sand anchor pocket is in contact with the outside sides of the berm; (e) placing at least some of the excavated ground into the sand anchor sleeve; and (f) filling the waterproof fabric base of said in-ground wading pool with water. ### Claim 19 (depends on 18) The method of claim 18 wherein the pool is generally oval-shaped when viewed from above. ### Claim 20 (depends on 18) The method of claim 18 wherein the in-ground wading pool further comprises a separate waterproof bag and the filling step further comprises using the waterproof bag to carry and pour water into the waterproof fabric base of said in-ground wading pool.