# US 2017/0284083 A1 · Coiled precompressed, precoated joint seal and method of making > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0284083 A1 - Document ID: US20170284083A1 - Status: Published application - Kind: A1 - Application number: 15/494,069 - Filed: 2017-04-21 - Published: 2017-10-05 - Earliest claimed: 2008-11-20 - Assignees: Emseal Joint Systems Ltd. - Applicants: Emseal Joint Systems Ltd. - Inventors: Lester Hensley; William Witherspoon - Web page: https://patentgrep.com/patent/US20170284083A1 ## CPC - E04B 1/6812: {Compressable seals of solid form} - B29C 43/02: of articles of definite length, i.e. discrete articles {(B29C35/0227 takes precedence)} - E04B 1/6806: {Waterstops (E04B1/6807 takes precedence)} - E04B 1/948: {Fire-proof sealings or joints (for doors or windows E06B5/164)} - E04C 2/205: {of foamed plastics, or of plastics and foamed plastics, optionally reinforced} - F16J 15/022: {characterised by structure or material} - F16J 15/065: {fire resistant} - B29L 2031/26: Sealing devices, e.g. packaging for pistons or pipe joints - E04B 1/944: {covered with fire-proofing material} - E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001}) - 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) - E04C: STRUCTURAL ELEMENTS; BUILDING MATERIALS (for bridges E01D; specially designed for insulation or other protection E04B; elements used as building aids E04G; for mining E21; for tunnels E21D; structural elements with broader range of application than for building engineering F16, particularly F16S) - F16J: PISTONS {(specially adapted for dampers F16F9/32)}; CYLINDERS; SEALINGS - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES ## Abstract Disclosed is a water resistant joint sealing system comprising a coiled, coated precompressed core material. In one embodiment, the joint sealing system includes a fire retardant material put into the core material. In one embodiment, the fire retardant material forms a layer in, or between portions of material of, the core material. ## Claims ### Claim 1 A water resistant precompressed joint system comprising: a pre-compressed, coated core strip windable onto a device multiple times and including: a top coat on said core strip of an elastomeric water proofing material formed into an arched, or a dome profile transverse to a direction of compression of the core strip against the device; and a liner configured to hold the coated core strip in compression; wherein the pre-compressed, coated core strip is wound onto the device so that the pre-compressed, coated core strip with the liner overlaps the pre-compressed, coated core with the liner multiple times creating discrete layers of wraps and the liner is positioned to keep each wrap discrete from a next wrap to prevent adhesion between the layers of the wraps. ### Claim 2 (depends on 1) The water resistant precompressed joint system of claim 1, wherein said top coat is formed mechanically or manually into the arched or dome shape. ### Claim 3 (depends on 2) The water resistant precompressed joint system of claim 2, wherein a bottom coat is formed mechanically or manually into a transverse arched or dome shape thereby creating a substantially symmetrical shape. ### Claim 4 (depends on 3) The water resistant precompressed joint system of claim 3, wherein the pre-compressed core strip further comprises impregnation of a fire retardant material into the core strip thereby forming a water and fire resistant expansion joint system. ### Claim 5 (depends on 4) The system of claim 4, wherein the top coat and/or the bottom coat is a fire barrier sealant. ### Claim 6 (depends on 4) The system of claim 4, wherein the core strip with the fire retardant material has a density in a range of about 160 kg/m3 to about 800 kg/m3; and the precompressed joint system is configured to pass testing mandated by UL 2079. ### Claim 7 (depends on 4) The system of claim 4, wherein the core comprises open celled foam. ### Claim 8 (depends on 7) The system of claim 7, wherein the device is a spool. ### Claim 9 A water and fire resistant expansion joint system comprising: a pre-compressed, coated foam strip windable onto a device multiple times and including: a top coat on said foam strip of a water resistant material transverse to a direction of compression of the foam strip against the device; a fire retardant infused into the foam strip; and a liner configured to hold the coated foam strip in compression; wherein the pre-compressed, coated foam strip is wound onto the device so that the pre-compressed, coated foam strip with the liner overlaps itself multiple times creating discrete layers of wraps and the liner is positioned to keep each wrap discrete from a next wrap to prevent adhesion between the layers of the wraps; and wherein the foam strip with the fire retardant has as a density in a range of about 160 kg/m3 to about 800 kg/m3; and the water and fire resistant expansion joint system is configured to pass testing mandated by UL 2079. ### Claim 10 (depends on 9) The water and fire resistant expansion joint system of claim 9, wherein the device is a spool. ### Claim 11 A method of making a water resistant precompressed joint system comprising: coating a core material with a water resistant elastomer to form a coated sheet; cutting the coated sheet into a strip; forming the strip into an arched profile; and compressing the arched strip.